From 1897b1f5e6569b73217ed238b3dd433cdc387636 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tim=20Vis=C3=A9e?= <timvisee@gmail.com>
Date: Sun, 1 Nov 2015 15:31:15 +0100
Subject: [PATCH] Added dynamic command handler from Dungeon Maze

---
 .../dynamic/CommandArgumentDescription.java   |  91 ++
 .../commands/dynamic/CommandDescription.java  | 912 ++++++++++++++++++
 .../commands/dynamic/CommandHandler.java      | 205 ++++
 .../dynamic/CommandHandlerService.java        |  90 ++
 .../commands/dynamic/CommandManager.java      | 288 ++++++
 .../authme/commands/dynamic/CommandParts.java | 204 ++++
 .../commands/dynamic/CommandPermissions.java  | 182 ++++
 .../commands/dynamic/ExecutableCommand.java   |  17 +
 .../commands/dynamic/FoundCommandResult.java  | 151 +++
 .../executable/CheckUpdatesCommand.java       |  78 ++
 .../executable/CreateWorldCommand.java        | 140 +++
 .../executable/DungeonMazeCommand.java        |  28 +
 .../dynamic/executable/HelpCommand.java       |  37 +
 .../executable/InstallUpdateCommand.java      |  75 ++
 .../dynamic/executable/ListWorldCommand.java  |  67 ++
 .../dynamic/executable/LoadWorldCommand.java  |  75 ++
 .../dynamic/executable/ReloadCommand.java     |  75 ++
 .../executable/ReloadPermissionsCommand.java  |  56 ++
 .../dynamic/executable/RestartCommand.java    | 105 ++
 .../dynamic/executable/ServiceCommand.java    |  73 ++
 .../dynamic/executable/StatusCommand.java     | 180 ++++
 .../dynamic/executable/TeleportCommand.java   |  80 ++
 .../executable/UnloadWorldCommand.java        | 107 ++
 .../dynamic/executable/VersionCommand.java    |  80 ++
 .../commands/dynamic/help/HelpPrinter.java    | 189 ++++
 .../commands/dynamic/help/HelpProvider.java   | 114 +++
 .../dynamic/help/HelpSyntaxHelper.java        |  60 ++
 27 files changed, 3759 insertions(+)
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/CommandArgumentDescription.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/CommandDescription.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/CommandHandler.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/CommandHandlerService.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/CommandManager.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/CommandParts.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/CommandPermissions.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/ExecutableCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/FoundCommandResult.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/executable/CheckUpdatesCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/executable/CreateWorldCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/executable/DungeonMazeCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/executable/HelpCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/executable/InstallUpdateCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/executable/ListWorldCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/executable/LoadWorldCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/executable/ReloadCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/executable/ReloadPermissionsCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/executable/RestartCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/executable/ServiceCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/executable/StatusCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/executable/TeleportCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/executable/UnloadWorldCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/executable/VersionCommand.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/help/HelpPrinter.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/help/HelpProvider.java
 create mode 100644 src/main/java/fr/xephi/authme/commands/dynamic/help/HelpSyntaxHelper.java

diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/CommandArgumentDescription.java b/src/main/java/fr/xephi/authme/commands/dynamic/CommandArgumentDescription.java
new file mode 100644
index 000000000..5d021b65f
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/CommandArgumentDescription.java
@@ -0,0 +1,91 @@
+package fr.xephi.authme.commands.dynamic;
+
+public class CommandArgumentDescription {
+
+    // TODO: Allow argument to consist of infinite parts. <label ...>
+
+    /** Argument label. */
+    private String label;
+    /** Argument description. */
+    private String description;
+    /** Defines whether the argument is optional. */
+    private boolean optional = false;
+
+    /**
+     * Constructor.
+     *
+     * @param label The argument label.
+     * @param description The argument description.
+     */
+    @SuppressWarnings("UnusedDeclaration")
+    public CommandArgumentDescription(String label, String description) {
+        this(label, description, false);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param label The argument label.
+     * @param description The argument description.
+     * @param optional True if the argument is optional, false otherwise.
+     */
+    public CommandArgumentDescription(String label, String description, boolean optional) {
+        setLabel(label);
+        setDescription(description);
+        setOptional(optional);
+    }
+
+    /**
+     * Get the argument label.
+     *
+     * @return Argument label.
+     */
+    public String getLabel() {
+        return this.label;
+    }
+
+    /**
+     * Set the argument label.
+     *
+     * @param label Argument label.
+     */
+    public void setLabel(String label) {
+        this.label = label;
+    }
+
+    /**
+     * Get the argument description.
+     *
+     * @return Argument description.
+     */
+    public String getDescription() {
+        return description;
+    }
+
+    /**
+     * Set the argument description.
+     *
+     * @param description Argument description.
+     */
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    /**
+     * Check whether the argument is optional.
+     *
+     * @return True if the argument is optional, false otherwise.
+     */
+    public boolean isOptional() {
+        return optional;
+    }
+
+    /**
+     * Set whether the argument is optional.
+     *
+     * @param optional True if the argument is optional, false otherwise.
+     */
+    public void setOptional(boolean optional) {
+        this.optional = optional;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/CommandDescription.java b/src/main/java/fr/xephi/authme/commands/dynamic/CommandDescription.java
new file mode 100644
index 000000000..2ab78ac68
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/CommandDescription.java
@@ -0,0 +1,912 @@
+package fr.xephi.authme.commands.dynamic;
+
+import com.timvisee.dungeonmaze.util.StringUtils;
+import org.bukkit.command.CommandSender;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+@SuppressWarnings("UnusedDeclaration")
+public class CommandDescription {
+
+    /** Defines the acceptable labels. */
+    private List<String> labels = new ArrayList<>();
+    /** Command description. */
+    private String description = "";
+    /** Detailed description. */
+    private String detailedDescription = "";
+    /** The executable command instance. */
+    private ExecutableCommand executableCommand;
+    /** The parent command. */
+    private CommandDescription parent = null;
+    /** The child labels. */
+    private List<CommandDescription> childs = new ArrayList<>();
+    /** The command arguments. */
+    private List<CommandArgumentDescription> arguments = new ArrayList<>();
+    /** Defines whether there is an argument maximum or not. */
+    private boolean noArgumentMaximum = false;
+    /** Defines the command permissions. */
+    private CommandPermissions permissions = new CommandPermissions();
+
+    /**
+     * Constructor.
+     *
+     * @param executableCommand The executable command, or null.
+     * @param label Command label.
+     * @param description Command description.
+     * @param detailedDescription Detailed comment description.
+     * @param parent Parent command.
+     */
+    public CommandDescription(ExecutableCommand executableCommand, String label, String description, String detailedDescription, CommandDescription parent) {
+        this(executableCommand, label, description, parent, detailedDescription, null);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param executableCommand The executable command, or null.
+     * @param labels List of command labels.
+     * @param description Command description.
+     * @param detailedDescription Detailed comment description.
+     * @param parent Parent command.
+     */
+    public CommandDescription(ExecutableCommand executableCommand, List<String> labels, String description, String detailedDescription, CommandDescription parent) {
+        this(executableCommand, labels, description, detailedDescription, parent, null);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param executableCommand The executable command, or null.
+     * @param label Command label.
+     * @param description Command description.
+     * @param parent Parent command.
+     * @param detailedDescription Detailed comment description.
+     * @param arguments Command arguments.
+     */
+    public CommandDescription(ExecutableCommand executableCommand, String label, String description, CommandDescription parent, String detailedDescription, List<CommandArgumentDescription> arguments) {
+        setExecutableCommand(executableCommand);
+        setLabel(label);
+        setDescription(description);
+        setDetailedDescription(detailedDescription);
+        setParent(parent);
+        setArguments(arguments);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param executableCommand The executable command, or null.
+     * @param labels List of command labels.
+     * @param description Command description.
+     * @param detailedDescription Detailed comment description.
+     * @param parent Parent command.
+     * @param arguments Command arguments.
+     */
+    public CommandDescription(ExecutableCommand executableCommand, List<String> labels, String description, String detailedDescription, CommandDescription parent, List<CommandArgumentDescription> arguments) {
+        setExecutableCommand(executableCommand);
+        setLabels(labels);
+        setDescription(description);
+        setDetailedDescription(detailedDescription);
+        setParent(parent);
+        setArguments(arguments);
+    }
+
+    /**
+     * Get the first relative command label.
+     *
+     * @return First relative command label.
+     */
+    public String getLabel() {
+        // Ensure there's any item in the command list
+        if(this.labels.size() == 0)
+            return "";
+
+        // Return the first command on the list
+        return this.labels.get(0);
+    }
+
+    /**
+     * Get the label most similar to the reference. The first label will be returned if no reference was supplied.
+     *
+     * @param reference The command reference.
+     *
+     * @return The most similar label, or the first label. An empty label will be returned if no label was set.
+     */
+    public String getLabel(CommandParts reference) {
+        // Ensure there's any item in the command list
+        if(this.labels.size() == 0)
+            return "";
+
+        // Return the first label if we can't use the reference
+        if(reference == null)
+            return this.labels.get(0);
+
+        // Get the correct label from the reference
+        String preferred = reference.get(getParentCount());
+
+        // Check whether the preferred label is in the label list
+        double currentDifference = -1;
+        String currentLabel = this.labels.get(0);
+        for(String entry : this.labels) {
+            double entryDifference = StringUtils.getDifference(entry, preferred);
+            if(entryDifference < currentDifference || currentDifference < 0) {
+                currentDifference = entryDifference;
+                currentLabel = entry;
+            }
+        }
+
+        // Return the most similar label
+        return currentLabel;
+    }
+
+    /**
+     * Get all relative command labels.
+     *
+     * @return All relative labels labels.
+     */
+    public List<String> getLabels() {
+        return this.labels;
+    }
+
+    /**
+     * Set the list of command labels.
+     *
+     * @param labels New list of command labels. Null to clear the list of labels.
+     */
+    public void setLabels(List<String> labels) {
+        // Check whether the command label list should be cleared
+        if(labels == null)
+            this.labels.clear();
+
+        else
+            this.labels = labels;
+    }
+
+    /**
+     * Set the command label, this will append the command label to already existing ones.
+     *
+     * @param commandLabel Command label to set or add.
+     */
+    public void setLabel(String commandLabel) {
+        setLabel(commandLabel, false);
+    }
+
+    /**
+     * Set the command label.
+     *
+     * @param commandLabel Command label to set.
+     * @param overwrite True to replace all old command labels, false to append this command label to the currently
+     *                  existing labels.
+     *
+     * @return Trie if the command label is added, or if it was added already. False on failure.
+     */
+    public boolean setLabel(String commandLabel, boolean overwrite) {
+        // Check whether this new command should overwrite the previous ones
+        if(!overwrite)
+            return addLabel(commandLabel);
+
+        // Replace all labels with this new one
+        this.labels.clear();
+        return this.labels.add(commandLabel);
+    }
+
+    /**
+     * Add a command label to the list.
+     *
+     * @param commandLabel Command label to add.
+     *
+     * @return True if the label was added, or if it was added already. False on error.
+     */
+    public boolean addLabel(String commandLabel) {
+        // Verify the label
+        if(!isValidLabel(commandLabel))
+            return false;
+
+        // Ensure this command isn't a duplicate
+        if(hasLabel(commandLabel))
+            return true;
+
+        // Add the command to the list
+        return this.labels.add(commandLabel);
+    }
+
+    /**
+     * Add a list of command labels.
+     *
+     * @param commandLabels List of command labels to add.
+     *
+     * @return True if succeed, false on failure.
+     */
+    public boolean addLabels(List<String> commandLabels) {
+        // Add each command label separately
+        for(String cmd : commandLabels)
+            if(!addLabel(cmd))
+                return false;
+        return true;
+    }
+
+    /**
+     * Check whether this command description has a specific command.
+     *
+     * @param commandLabel Command to check for.
+     *
+     * @return True if this command label equals to the param command.
+     */
+    public boolean hasLabel(String commandLabel) {
+        // Check whether any command matches with the argument
+        for(String entry : this.labels)
+            if(commandLabelEquals(entry, commandLabel))
+                return true;
+
+        // No match found, return false
+        return false;
+    }
+
+    /**
+     * Check whether this command description has a list of labels
+     * @param commandLabels List of labels
+     * @return True if all labels match, false otherwise
+     */
+    public boolean hasLabels(List<String> commandLabels) {
+        // Check if there's a match for every command
+        for(String cmd : commandLabels)
+            if(!hasLabel(cmd))
+                return false;
+
+        // There seems to be a match for every command, return true
+        return true;
+    }
+
+    /**
+     * Check whether this command label is applicable with a command reference. This doesn't check if the parent
+     * are suitable too.
+     *
+     * @param commandReference The command reference.
+     *
+     * @return True if the command reference is suitable to this command label, false otherwise.
+     */
+    public boolean isSuitableLabel(CommandParts commandReference) {
+        // Make sure the command reference is valid
+        if(commandReference.getCount() <= 0)
+            return false;
+
+        // Get the parent count
+        String element = commandReference.get(getParentCount());
+
+        // Check whether this command description has this command label
+        return hasLabel(element);
+    }
+
+    /**
+     * Check whether a label is valid to use.
+     *
+     * @param label The label to test.
+     *
+     * @return True if the label is valid to use, false otherwise.
+     */
+    public static boolean isValidLabel(String label) {
+        // Make sure the label isn't null
+        if(label == null)
+            return false;
+
+        // Trim the label
+        label = label.trim();
+
+        // Make sure the label is at least one character long
+        if(label.length() <= 0)
+            return false;
+
+        // Make sure the label doesn't contain any spaces, return the result
+        return !label.contains(" ");
+    }
+
+    /**
+     * Get the absolute command label, without a slash.
+     */
+    public String getAbsoluteLabel() {
+        return getAbsoluteLabel(false);
+    }
+
+    /**
+     * Get the absolute command label.
+     *
+     * @return Absolute command label.
+     */
+    public String getAbsoluteLabel(boolean includeSlash) {
+        return getAbsoluteLabel(includeSlash, null);
+    }
+
+    /**
+     * Get the absolute command label.
+     *
+     * @return Absolute command label.
+     */
+    public String getAbsoluteLabel(boolean includeSlash, CommandParts reference) {
+        // Get the command reference, and make sure it is valid
+        CommandParts out = getCommandReference(reference);
+        if(out == null)
+            return "";
+
+        // Return the result
+        return (includeSlash ? "/" : "") + out.toString();
+    }
+
+    /**
+     * Get the command reference.
+     *
+     * @param reference The reference to use as template, which is used to choose the most similar reference.
+     *
+     * @return Command reference.
+     */
+    public CommandParts getCommandReference(CommandParts reference) {
+        // Build the reference
+        List<String> referenceList = new ArrayList<>();
+
+        // Check whether this command has a parent, if so, add the absolute parent command
+        if(getParent() != null)
+            referenceList.addAll(getParent().getCommandReference(reference).getList());
+
+        // Get the current label
+        referenceList.add(getLabel(reference));
+
+        // Return the reference
+        return new CommandParts(referenceList);
+    }
+
+    /**
+     * Get the difference between this command and another command reference.
+     *
+     * @param other The other command reference.
+     *
+     * @return The command difference. Zero if there's no difference. A negative number on error.
+     */
+    public double getCommandDifference(CommandParts other) {
+        return getCommandDifference(other, false);
+    }
+
+    /**
+     * Get the difference between this command and another command reference.
+     *
+     * @param other The other command reference.
+     * @param fullCompare True to fully compare both command references.
+     *
+     * @return The command difference. Zero if there's no difference. A negative number on error.
+     */
+    public double getCommandDifference(CommandParts other, boolean fullCompare) {
+        // Make sure the reference is valid
+        if(other == null)
+            return -1;
+
+        // Get the command reference
+        CommandParts reference = getCommandReference(other);
+
+        // Compare the two references, return the result
+        return reference.getDifference(new CommandParts(other.getRange(0, reference.getCount())), fullCompare);
+    }
+
+    /**
+     * Get the executable command.
+     *
+     * @return The executable command.
+     */
+    public ExecutableCommand getExecutableCommand() {
+        return this.executableCommand;
+    }
+
+    /**
+     * Set the executable command.
+     *
+     * @param executableCommand The executable command.
+     */
+    public void setExecutableCommand(ExecutableCommand executableCommand) {
+        this.executableCommand = executableCommand;
+    }
+
+    /**
+     * Check whether this command is executable, based on the assigned executable command.
+     *
+     * @return True if this command is executable.
+     */
+    public boolean isExecutable() {
+        return this.executableCommand != null;
+    }
+
+    /**
+     * Execute the command, if possible.
+     *
+     * @param sender The command sender that triggered the execution of this command.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True on success, false on failure.
+     */
+    public boolean execute(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Make sure the command is executable
+        if(!isExecutable())
+            return false;
+
+        // Execute the command, return the result
+        return getExecutableCommand().executeCommand(sender, commandReference, commandArguments);
+    }
+
+    /**
+     * Get the parent command if this command description has a parent.
+     *
+     * @return Parent command, or null
+     */
+    public CommandDescription getParent() {
+        return this.parent;
+    }
+
+    /**
+     * Get the number of parent this description has.
+     *
+     * @return The number of parents.
+     */
+    public int getParentCount() {
+        // Check whether the this description has a parent
+        if(!hasParent())
+            return 0;
+
+        // Get the parent count of the parent, return the result
+        return getParent().getParentCount() + 1;
+    }
+
+    /**
+     * Set the parent command.
+     *
+     * @param parent Parent command.
+     *
+     * @return True on success, false on failure.
+     */
+    public boolean setParent(CommandDescription parent) {
+        // Make sure the parent is different
+        if(this.parent == parent)
+            return true;
+
+        // Set the parent
+        this.parent = parent;
+
+        // Make sure the parent isn't null
+        if(parent == null)
+            return true;
+
+        // Add this description as a child to the parent
+        return parent.addChild(this);
+    }
+
+    /**
+     * Check whether the plugin description has a parent command.
+     *
+     * @return True if the description has a parent command, false otherwise.
+     */
+    public boolean hasParent() {
+        return this.parent != null;
+    }
+
+    /**
+     * Get all command childs.
+     *
+     * @return Command childs.
+     */
+    public List<CommandDescription> getChilds() {
+        return this.childs;
+    }
+
+    /**
+     * Add a child to the command description.
+     *
+     * @param commandDescription The child to add.
+     *
+     * @return True on success, false on failure.
+     */
+    public boolean addChild(CommandDescription commandDescription) {
+        // Make sure the description is valid
+        if(commandDescription == null)
+            return false;
+        if(!commandDescription.isValid())
+            return false;
+
+        // Make sure the child doesn't exist already
+        if(isChild(commandDescription))
+            return true;
+
+        // The command description to add as a child
+        if(!this.childs.add(commandDescription))
+            return false;
+
+        // Set this description as parent on the child
+        return commandDescription.setParent(this);
+    }
+
+    /**
+     * Set the childs of this command.
+     *
+     * @param childs New command childs. Null to remove all childs.
+     */
+    public void setChilds(List<CommandDescription> childs) {
+        // Check whether the childs list should be cleared
+        if(childs == null)
+            this.childs.clear();
+
+        else
+            this.childs = childs;
+    }
+
+    /**
+     * Check whether this command has any child labels.
+     *
+     * @return True if this command has any child labels.
+     */
+    public boolean hasChilds() {
+        return (this.childs.size() != 0);
+    }
+
+    /**
+     * Check if this command description has a specific child.
+     *
+     * @param commandDescription The command description to check for.
+     *
+     * @return True if this command description has the specific child, false otherwise.
+     */
+    public boolean isChild(CommandDescription commandDescription) {
+        // Make sure the description is valid
+        if(commandDescription == null)
+            return false;
+        if(!commandDescription.isValid())
+            return false;
+
+        // Check whether this child exists, return the result
+        return this.childs.contains(commandDescription);
+    }
+
+    /**
+     * Add an argument.
+     *
+     * @param argument The argument to add.
+     *
+     * @return True if succeed, false if failed.
+     */
+    public boolean addArgument(CommandArgumentDescription argument) {
+        // Make sure the argument is valid
+        if(argument == null)
+            return false;
+
+        // Make sure the argument isn't added already
+        if(hasArgument(argument))
+            return true;
+
+        // Add the argument, return the result
+        return this.arguments.add(argument);
+    }
+
+    /**
+     * Get all command arguments.
+     *
+     * @return Command arguments.
+     */
+    public List<CommandArgumentDescription> getArguments() {
+        return this.arguments;
+    }
+
+    /**
+     * Set the arguments of this command.
+     *
+     * @param arguments New command arguments. Null to clear the list of arguments.
+     */
+    public void setArguments(List<CommandArgumentDescription> arguments) {
+        // Convert null into an empty argument list
+        if(arguments == null)
+            this.arguments.clear();
+
+        else
+            this.arguments = arguments;
+    }
+
+    /**
+     * Check whether an argument exists.
+     *
+     * @param argument The argument to check for.
+     *
+     * @return True if this argument already exists, false otherwise.
+     */
+    public boolean hasArgument(CommandArgumentDescription argument) {
+        // Make sure the argument is valid
+        if(argument == null)
+            return false;
+
+        // Check whether the argument exists, return the result
+        return this.arguments.contains(argument);
+    }
+
+    /**
+     * Check whether this command has any arguments.
+     *
+     * @return True if this command has any arguments.
+     */
+    public boolean hasArguments() {
+        return (this.arguments.size() != 0);
+    }
+
+    /**
+     * The minimum number of arguments required for this command.
+     *
+     * @return The minimum number of required arguments.
+     */
+    public int getMinimumArguments() {
+        // Get the number of required and optional arguments
+        int requiredArguments = 0;
+        int optionalArgument = 0;
+
+        // Loop through each argument
+        for(CommandArgumentDescription argument : this.arguments) {
+            // Check whether the command is optional
+            if(!argument.isOptional()) {
+                requiredArguments += optionalArgument + 1;
+                optionalArgument = 0;
+
+            } else
+                optionalArgument++;
+        }
+
+        // Return the number of required arguments
+        return requiredArguments;
+    }
+
+    /**
+     * Get the maximum number of arguments.
+     *
+     * @return The maximum number of arguments. A negative number will be returned if there's no maximum.
+     */
+    public int getMaximumArguments() {
+        // Check whether there is a maximum set
+        if(this.noArgumentMaximum)
+            return -1;
+
+        // Return the maximum based on the registered arguments
+        return this.arguments.size();
+    }
+
+    /**
+     * Set whether there is an argument maximum.
+     *
+     * @param maximumArguments True if there is an argument maximum, based on the number of registered arguments.
+     */
+    public void setMaximumArguments(boolean maximumArguments) {
+        this.noArgumentMaximum = !maximumArguments;
+    }
+
+    /**
+     * Get the command description.
+     *
+     * @return Command description.
+     */
+    public String getDescription() {
+        return hasDescription() ? this.description : this.detailedDescription;
+    }
+
+    /**
+     * Set the command description.
+     *
+     * @param description New command description. Null to reset the description.
+     */
+    public void setDescription(String description) {
+        if(description == null)
+            this.description = "";
+
+        else
+            this.description = description;
+    }
+
+    /**
+     * Check whether this command has any description.
+     *
+     * @return True if this command has any description.
+     */
+    public boolean hasDescription() {
+        return (this.description.trim().length() != 0);
+    }
+
+    /**
+     * Get the command detailed description.
+     *
+     * @return Command detailed description.
+     */
+    public String getDetailedDescription() {
+        return hasDetailedDescription() ? this.detailedDescription : this.description;
+    }
+
+    /**
+     * Set the command detailed description.
+     *
+     * @param detailedDescription New command description. Null to reset the description.
+     */
+    public void setDetailedDescription(String detailedDescription) {
+        if(detailedDescription == null)
+            this.detailedDescription = "";
+
+        else
+            this.detailedDescription = detailedDescription;
+    }
+
+    /**
+     * Check whether this command has any detailed description.
+     *
+     * @return True if this command has any detailed description.
+     */
+    public boolean hasDetailedDescription() {
+        return (this.detailedDescription.trim().length() != 0);
+    }
+
+    /**
+     * Find the best suitable command for a query reference.
+     *
+     * @param queryReference The query reference to find a command for.
+     *
+     * @return The command found, or null.
+     */
+    public FoundCommandResult findCommand(final CommandParts queryReference) {
+        // Make sure the command reference is valid
+        if(queryReference.getCount() <= 0)
+            return null;
+
+        // Check whether this description is for the last element in the command reference, if so return the current command
+        if(queryReference.getCount() <= getParentCount() + 1)
+            return new FoundCommandResult(
+                    this,
+                    getCommandReference(queryReference),
+                    new CommandParts(),
+                    queryReference);
+
+        // Get the new command reference and arguments
+        CommandParts newReference = new CommandParts(queryReference.getRange(0, getParentCount() + 1));
+        CommandParts newArguments = new CommandParts(queryReference.getRange(getParentCount() + 1));
+
+        // Handle the child's, if this command has any
+        if(getChilds().size() > 0) {
+            // Get a new instance of the child's list, and sort them by their difference in comparison to the query reference
+            List<CommandDescription> commandChilds = new ArrayList<>(getChilds());
+            Collections.sort(commandChilds, (o1, o2) -> Double.compare(
+                    o1.getCommandDifference(queryReference),
+                    o2.getCommandDifference(queryReference)));
+
+            // Get the difference of the first child in the list
+            double firstChildDifference = commandChilds.get(0).getCommandDifference(queryReference, true);
+
+            // Check if the reference perfectly suits the arguments of the current command if it doesn't perfectly suits a child command
+            if(firstChildDifference > 0.0)
+                if(getSuitableArgumentsDifference(queryReference) == 0)
+                    return new FoundCommandResult(this, newReference, newArguments, queryReference);
+
+            // Loop through each child
+            for(CommandDescription child : commandChilds) {
+                // Get the best suitable command
+                FoundCommandResult result = child.findCommand(queryReference);
+                if(result != null)
+                    return result;
+            }
+        }
+
+        // Check if the remaining command reference elements fit the arguments for this command
+        if(getSuitableArgumentsDifference(queryReference) >= 0)
+            return new FoundCommandResult(this, newReference, newArguments, queryReference);
+
+        // No command found, return null
+        return null;
+    }
+
+    /**
+     * Check whether there's any command description that matches the specified command reference.
+     *
+     * @param commandReference The command reference.
+     *
+     * @return True if so, false otherwise.
+     */
+    public boolean hasSuitableCommand(CommandParts commandReference) {
+        return findCommand(commandReference) != null;
+    }
+
+    /**
+     * Check if the remaining command reference elements are suitable with arguments of the current command description.
+     *
+     * @param commandReference The command reference.
+     *
+     * @return True if the arguments are suitable, false otherwise.
+     */
+    public boolean hasSuitableArguments(CommandParts commandReference) {
+        return getSuitableArgumentsDifference(commandReference) == 0;
+    }
+
+    /**
+     * Check if the remaining command reference elements are suitable with arguments of the current command description,
+     * and get the difference in argument count.
+     *
+     * @param commandReference The command reference.
+     *
+     * @return The difference in argument count between the reference and the actual command.
+     */
+    public int getSuitableArgumentsDifference(CommandParts commandReference) {
+        // Make sure the command reference is valid
+        if(commandReference.getCount() <= 0)
+            return -1;
+
+        // Get the remaining command reference element count
+        int remainingElementCount = commandReference.getCount() - getParentCount() - 1;
+
+        // Check if there are too less arguments
+        if(getMinimumArguments() > remainingElementCount)
+            return Math.abs(getMinimumArguments() - remainingElementCount);
+
+        // Check if there are too many arguments
+        if(getMaximumArguments() < remainingElementCount && getMaximumArguments() >= 0)
+            return Math.abs(remainingElementCount - getMaximumArguments());
+
+        // The arguments seem to be EQUALS, return the result
+        return 0;
+    }
+
+    /**
+     * Get the command permissions.
+     *
+     * @return The command permissions.
+     */
+    public CommandPermissions getCommandPermissions() {
+        return this.permissions;
+    }
+
+    /**
+     * Set the command permissions.
+     *
+     * @param commandPermissions The command permissions.
+     */
+    public void setCommandPermissions(CommandPermissions commandPermissions) {
+        this.permissions = commandPermissions;
+    }
+
+    /**
+     * Set the command permissions.
+     *
+     * @param permissionNode The permission node required.
+     * @param defaultPermission The default permission.
+     */
+    public void setCommandPermissions(String permissionNode, CommandPermissions.DefaultPermission defaultPermission) {
+        this.permissions = new CommandPermissions(permissionNode, defaultPermission);
+    }
+
+    /**
+     * Check whether two labels equal to each other.
+     *
+     * @param commandLabel The first command label.
+     * @param otherCommandLabel The other command label.
+     *
+     * @return True if the labels are equal to each other.
+     */
+    private static boolean commandLabelEquals(String commandLabel, String otherCommandLabel) {
+        // Trim the command labels from unwanted whitespaces
+        commandLabel = commandLabel.trim();
+        otherCommandLabel = otherCommandLabel.trim();
+
+        // Check whether the the two command labels are equal (case insensitive)
+        return (commandLabel.equalsIgnoreCase(otherCommandLabel));
+    }
+
+    /**
+     * Check whether the command description has been set up properly.
+     *
+     * @return True if the command description is valid, false otherwise.
+     */
+    public boolean isValid() {
+        // Make sure any command label is set
+        if(getLabels().size() == 0)
+            return false;
+
+        // Make sure the permissions are set up properly
+        if(this.permissions == null)
+            return false;
+
+        // Everything seems to be correct, return the result
+        return true;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/CommandHandler.java b/src/main/java/fr/xephi/authme/commands/dynamic/CommandHandler.java
new file mode 100644
index 000000000..e3a5808c9
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/CommandHandler.java
@@ -0,0 +1,205 @@
+package fr.xephi.authme.commands.dynamic;
+
+import com.timvisee.dungeonmaze.command.help.HelpProvider;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class CommandHandler {
+
+    /** The command manager instance. */
+    private CommandManager commandManager;
+
+    /**
+     * Constructor.
+     *
+     * @param init True to immediately initialize.
+     */
+    public CommandHandler(boolean init) {
+        // Initialize
+        if(init)
+            init();
+    }
+
+    /**
+     * Initialize the command handler.
+     *
+     * @return True if succeed, false on failure. True will also be returned if the command handler was already
+     * initialized.
+     */
+    public boolean init() {
+        // Make sure the handler isn't initialized already
+        if(isInit())
+            return true;
+
+        // Initialize the command manager
+        this.commandManager = new CommandManager(false);
+        this.commandManager.registerCommands();
+
+        // Return the result
+        return true;
+    }
+
+    /**
+     * Check whether the command handler is initialized.
+     *
+     * @return True if the command handler is initialized.
+     */
+    public boolean isInit() {
+        return this.commandManager != null;
+    }
+
+    /**
+     * Destroy the command handler.
+     *
+     * @return True if the command handler was destroyed successfully, false otherwise. True will also be returned if
+     * the command handler wasn't initialized.
+     */
+    public boolean destroy() {
+        // Make sure the command handler is initialized
+        if(!isInit())
+            return true;
+
+        // Unset the command manager
+        this.commandManager = null;
+        return true;
+    }
+
+    /**
+     * Get the command manager.
+     *
+     * @return Command manager instance.
+     */
+    public CommandManager getCommandManager() {
+        return this.commandManager;
+    }
+
+    /**
+     * Process a command.
+     *
+     * @param sender The command sender (Bukkit).
+     * @param bukkitCommand The command (Bukkit).
+     * @param bukkitCommandLabel The command label (Bukkit).
+     * @param bukkitArgs The command arguments (Bukkit).
+     *
+     * @return True if the command was executed, false otherwise.
+     */
+    public boolean onCommand(CommandSender sender, @SuppressWarnings("UnusedParameters") org.bukkit.command.Command bukkitCommand, String bukkitCommandLabel, String[] bukkitArgs) {
+        // Process the arguments
+        List<String> args = processArguments(bukkitArgs);
+
+        // Create a command reference, and make sure at least one command part is available
+        CommandParts commandReference = new CommandParts(bukkitCommandLabel, args);
+        if(commandReference.getCount() == 0)
+            return false;
+
+        // Get a suitable command for this reference, and make sure it isn't null
+        FoundCommandResult result = this.commandManager.findCommand(commandReference);
+        if(result == null) {
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to parse Dungeon Maze command!");
+            return false;
+        }
+
+        // Get the base command
+        String baseCommand = commandReference.get(0);
+
+        // Make sure the difference between the command reference and the actual command isn't too big
+        final double commandDifference = result.getDifference();
+        if(commandDifference > 0.12) {
+            // Show the unknown command warning
+            sender.sendMessage(ChatColor.DARK_RED + "Unknown command!");
+
+            // Show a command suggestion if available and the difference isn't too big
+            if(commandDifference < 0.75)
+                if(result.getCommandDescription() != null)
+                    sender.sendMessage(ChatColor.YELLOW + "Did you mean " + ChatColor.GOLD + "/" + result.getCommandDescription().getCommandReference(commandReference) + ChatColor.YELLOW + "?");
+
+            // Show the help command
+            sender.sendMessage(ChatColor.YELLOW + "Use the command " + ChatColor.GOLD + "/" + baseCommand + " help" + ChatColor.YELLOW + " to view help.");
+            return true;
+        }
+
+        // Show a message when the command handler is assuming a command
+        if(commandDifference > 0) {
+            // Get the suggested command
+            CommandParts suggestedCommandParts = new CommandParts(result.getCommandDescription().getCommandReference(commandReference));
+
+            // Show the suggested command
+            sender.sendMessage(ChatColor.DARK_RED + "Unknown command, assuming " + ChatColor.GOLD + "/" + suggestedCommandParts +
+                    ChatColor.DARK_RED + "!");
+        }
+
+        // Make sure the command is executable
+        if(!result.isExecutable()) {
+            // Get the command reference
+            CommandParts helpCommandReference = new CommandParts(result.getCommandReference().getRange(1));
+
+            // Show the unknown command warning
+            sender.sendMessage(ChatColor.DARK_RED + "Invalid command!");
+
+            // Show the help command
+            sender.sendMessage(ChatColor.YELLOW + "Use the command " + ChatColor.GOLD + "/" + baseCommand + " help " + helpCommandReference + ChatColor.YELLOW + " to view help.");
+            return true;
+        }
+
+        // Make sure the command sender has permission
+        if(!result.hasPermission(sender)) {
+            // Show the no permissions warning
+            sender.sendMessage(ChatColor.DARK_RED + "You don't have permission to use this command!");
+            return true;
+        }
+
+        // Make sure the command sender has permission
+        if(!result.hasProperArguments()) {
+            // Get the command and the suggested command reference
+            CommandParts suggestedCommandReference = new CommandParts(result.getCommandDescription().getCommandReference(commandReference));
+            CommandParts helpCommandReference = new CommandParts(suggestedCommandReference.getRange(1));
+
+            // Show the invalid arguments warning
+            sender.sendMessage(ChatColor.DARK_RED + "Incorrect command arguments!");
+
+            // Show the command argument help
+            HelpProvider.showHelp(sender, commandReference, suggestedCommandReference, true, false, true, false, false, false);
+
+            // Show the command to use for detailed help
+            sender.sendMessage(ChatColor.GOLD + "Detailed help: " + ChatColor.WHITE + "/" + baseCommand + " help " + helpCommandReference);
+            return true;
+        }
+
+        // Execute the command if it's suitable
+        return result.executeCommand(sender);
+    }
+
+    /**
+     * Process the command arguments, and return them as an array list.
+     *
+     * @param args The command arguments to process.
+     *
+     * @return The processed command arguments.
+     */
+    private List<String> processArguments(String[] args) {
+        // Convert the array into a list of arguments
+        List<String> arguments = new ArrayList<>(Arrays.asList(args));
+
+        /// Remove all empty arguments
+        for(int i = 0; i < arguments.size(); i++) {
+            // Get the argument value
+            final String arg = arguments.get(i);
+
+            // Check whether the argument value is empty
+            if(arg.trim().length() == 0) {
+                // Remove the current argument
+                arguments.remove(i);
+
+                // Decrease the index by one, continue to the next argument
+                i--;
+            }
+        }
+
+        // Return the argument
+        return arguments;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/CommandHandlerService.java b/src/main/java/fr/xephi/authme/commands/dynamic/CommandHandlerService.java
new file mode 100644
index 000000000..7cd4dd116
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/CommandHandlerService.java
@@ -0,0 +1,90 @@
+package fr.xephi.authme.commands.dynamic;
+
+import com.timvisee.dungeonmaze.service.Service;
+
+public class CommandHandlerService extends Service {
+
+    /** Service name. */
+    private static final String SERVICE_NAME = "Command Handler";
+
+    /** Command handler instance. */
+    private CommandHandler commandHandler;
+
+    /**
+     * Initialize the service.
+     *
+     * @return True on success, false on failure. True will also be returned if the service was initialized already.
+     */
+    @Override
+    public boolean init() {
+        // Initialize the command handler
+        this.commandHandler = new CommandHandler(false);
+
+        // Initialize the command handler, return the result
+        return this.commandHandler.init();
+    }
+
+    /**
+     * Check whether the service is initialized.
+     *
+     * @return True if the service is initialized, false otherwise.
+     */
+    @Override
+    public boolean isInit() {
+        // Make sure the command handler is set
+        if(this.commandHandler == null)
+            return false;
+
+        // Check whether the command handler is initialized
+        return this.commandHandler.isInit();
+    }
+
+    /**
+     * Destroy the service. The destruction won't be forced.
+     *
+     * @param force True to force the destruction. This wil re-destroy the service even if it isn't initialized.
+     *              This will also force the initialization state to be set to false even if an error occurred while
+     *              destroying.
+     *
+     * @return True on success, false on failure. True will also be returned if the service wasn't initialized. False
+     * might be returned if force is set to true, even though the initialization state is set to false.
+     */
+    @Override
+    public boolean destroy(boolean force) {
+        // Make sure the command handler is initialized
+        if(!this.isInit() && !force)
+            return true;
+
+        // Destroy the command handler
+        if(this.commandHandler != null) {
+            if(!this.commandHandler.destroy()) {
+                if(force)
+                    this.commandHandler = null;
+                return false;
+            }
+        }
+
+        // Return the result
+        this.commandHandler = null;
+        return true;
+    }
+
+    /**
+     * Get the name of the service.
+     *
+     * @return Service name.
+     */
+    @Override
+    public String getName() {
+        return SERVICE_NAME;
+    }
+
+    /**
+     * Get the command handler.
+     *
+     * @return Command handler instance.
+     */
+    public CommandHandler getCommandHandler() {
+        return this.commandHandler;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/CommandManager.java b/src/main/java/fr/xephi/authme/commands/dynamic/CommandManager.java
new file mode 100644
index 000000000..ce14a7b04
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/CommandManager.java
@@ -0,0 +1,288 @@
+package fr.xephi.authme.commands.dynamic;
+
+import com.timvisee.dungeonmaze.command.executable.*;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@SuppressWarnings("UnusedDeclaration")
+public class CommandManager {
+
+    /** The list of commandDescriptions. */
+    private List<CommandDescription> commandDescriptions = new ArrayList<>();
+
+    /**
+     * Constructor.
+     *
+     * @param registerCommands True to register the commands, false otherwise.
+     */
+    public CommandManager(boolean registerCommands) {
+        // Register the commands
+        if(registerCommands)
+            registerCommands();
+    }
+
+    /**
+     * Register all commands.
+     */
+    @SuppressWarnings("SpellCheckingInspection")
+    public void registerCommands() {
+        // Register the base Dungeon Maze command
+        CommandDescription dungeonMazeCommand = new CommandDescription(
+                new DungeonMazeCommand(),
+                new ArrayList<String>() {{
+                    add("dungeonmaze");
+                    add("dm");
+                }},
+                "Main command",
+                "The main Dungeon Maze command. The root for all the other commands.", null);
+
+        // Register the help command
+        CommandDescription helpCommand = new CommandDescription(
+                new HelpCommand(),
+                new ArrayList<String>() {{
+                    add("help");
+                    add("hlp");
+                    add("h");
+                    add("sos");
+                    add("?");
+                }},
+                "View help",
+                "View detailed help pages about Dungeon Maze commands.",
+                dungeonMazeCommand);
+        helpCommand.addArgument(new CommandArgumentDescription("query", "The command or query to view help for.", true));
+        helpCommand.setMaximumArguments(false);
+
+        // Register the create command
+        CommandDescription createWorldCommand = new CommandDescription(
+                new CreateWorldCommand(),
+                new ArrayList<String>() {{
+                    add("createworld");
+                    add("cw");
+                }},
+                "Create world",
+                "Create a new Dungeon Maze world, the name of the world must be unique.",
+                dungeonMazeCommand);
+        createWorldCommand.addArgument(new CommandArgumentDescription("world", "The name of the world to create.", false));
+        createWorldCommand.addArgument(new CommandArgumentDescription("preload", "True or False to preload the world on startup.", true));
+        createWorldCommand.setCommandPermissions("dungeonmaze.command.createworld", CommandPermissions.DefaultPermission.OP_ONLY);
+
+        // Register the teleport command
+        CommandDescription teleportCommand = new CommandDescription(
+                new TeleportCommand(),
+                new ArrayList<String>() {{
+                    add("teleport");
+                    add("tp");
+                    add("warp");
+                    add("goto");
+                    add("move");
+                }},
+                "Teleport to world",
+                "Teleports to any another world, such as a Dungeon Maze world." ,
+                dungeonMazeCommand);
+        teleportCommand.addArgument(new CommandArgumentDescription("world", "The name of the world to teleport to.", false));
+        teleportCommand.setCommandPermissions("dungeonmaze.command.teleport", CommandPermissions.DefaultPermission.OP_ONLY);
+
+        // Register the load world command
+        CommandDescription loadWorldCommand = new CommandDescription(
+                new LoadWorldCommand(),
+                new ArrayList<String>() {{
+                    add("loadworld");
+                    add("load");
+                }},
+                "Load a world",
+                "Load a world if it isn't loaded." ,
+                dungeonMazeCommand);
+        loadWorldCommand.addArgument(new CommandArgumentDescription("world", "The name of the world to load.", false));
+        loadWorldCommand.setCommandPermissions("dungeonmaze.command.loadworld", CommandPermissions.DefaultPermission.OP_ONLY);
+
+        // Register the unload world command
+        CommandDescription unloadWorldCommand = new CommandDescription(
+                new UnloadWorldCommand(),
+                new ArrayList<String>() {{
+                    add("unloadworld");
+                    add("unload");
+                }},
+                "Unload a world",
+                "Unload a loaded world." ,
+                dungeonMazeCommand);
+        unloadWorldCommand.addArgument(new CommandArgumentDescription("world", "The name of the world to unload.", false));
+        unloadWorldCommand.setCommandPermissions("dungeonmaze.command.unloadworld", CommandPermissions.DefaultPermission.OP_ONLY);
+
+        // Register the list world command
+        CommandDescription listWorldCommand = new CommandDescription(
+                new ListWorldCommand(),
+                new ArrayList<String>() {{
+                    add("listworlds");
+                    add("listworld");
+                    add("list");
+                    add("worlds");
+                    add("lw");
+                }},
+                "List Dungeon Mazes",
+                "Lists the available Dungeon Maze worlds and shows some additional information.",
+                dungeonMazeCommand);
+        listWorldCommand.setCommandPermissions("dungeonmaze.command.listworlds", CommandPermissions.DefaultPermission.OP_ONLY);
+
+        // Register the reload command
+        CommandDescription reloadCommand = new CommandDescription(
+                new ReloadCommand(),
+                new ArrayList<String>() {{
+                    add("reload");
+                    add("rld");
+                    add("r");
+                }},
+                "Reload Dungeon Maze",
+                "Reload the Dungeon Maze plugin.",
+                dungeonMazeCommand);
+        reloadCommand.setCommandPermissions("dungeonmaze.command.reload", CommandPermissions.DefaultPermission.OP_ONLY);
+        reloadCommand.addArgument(new CommandArgumentDescription("force", "True or False to force reload.", true));
+
+        // Register the reload permissions command
+        CommandDescription reloadPermissionsCommand = new CommandDescription(
+                new ReloadPermissionsCommand(),
+                new ArrayList<String>() {{
+                    add("reloadpermissions");
+                    add("reloadpermission");
+                    add("reloadperms");
+                    add("rp");
+                }},
+                "Reload permissions",
+                "Reload the permissions system and rehook the installed permissions system.",
+                dungeonMazeCommand);
+        reloadPermissionsCommand.setCommandPermissions("dungeonmaze.command.reloadpermissions", CommandPermissions.DefaultPermission.OP_ONLY);
+
+        // Register the restart command
+        CommandDescription restartCommand = new CommandDescription(
+                new RestartCommand(),
+                new ArrayList<String>() {{
+                    add("restart");
+                    add("rstrt");
+                }},
+                "Restart Dungeon Maze",
+                "Restart the Dungeon Maze plugin.",
+                dungeonMazeCommand);
+        restartCommand.setCommandPermissions("dungeonmaze.command.restart", CommandPermissions.DefaultPermission.OP_ONLY);
+        restartCommand.addArgument(new CommandArgumentDescription("force", "True or False to force restart.", true));
+
+        // Register the check updates command
+        CommandDescription checkUpdatesCommand = new CommandDescription(
+                new CheckUpdatesCommand(),
+                new ArrayList<String>() {{
+                    add("checkupdates");
+                    add("checkupdate");
+                    add("check");
+                    add("updates");
+                    add("update");
+                    add("cu");
+                }},
+                "Check updates",
+                "Check for available updates to install.",
+                dungeonMazeCommand);
+        checkUpdatesCommand.setCommandPermissions("dungeonmaze.command.checkupdates", CommandPermissions.DefaultPermission.OP_ONLY);
+
+        // Register the install update command
+        CommandDescription installUpdateCommand = new CommandDescription(
+                new InstallUpdateCommand(),
+                new ArrayList<String>() {{
+                    add("installupdates");
+                    add("installupdate");
+                    add("install");
+                    add("iu");
+                }},
+                "Install update",
+                "Try to install any availble update.",
+                dungeonMazeCommand);
+        installUpdateCommand.setCommandPermissions("dungeonmaze.command.installupdate", CommandPermissions.DefaultPermission.OP_ONLY);
+
+        // Register the status command
+        CommandDescription statusCommand = new CommandDescription(
+                new StatusCommand(),
+                new ArrayList<String>() {{
+                    add("status");
+                    add("stats");
+                    add("s");
+                }},
+                "Status info",
+                "Show detailed plugin status.",
+                dungeonMazeCommand);
+        statusCommand.setMaximumArguments(false);
+        statusCommand.setCommandPermissions("dungeonmaze.command.status", CommandPermissions.DefaultPermission.OP_ONLY);
+
+        // Register the status command
+        CommandDescription serviceCommand = new CommandDescription(
+                new ServiceCommand(),
+                new ArrayList<String>() {{
+                    add("services");
+                    add("service");
+                    add("serv");
+                }},
+                "Services command",
+                "Show detailed information about all the Dungeon Maze serivces.",
+                dungeonMazeCommand);
+        serviceCommand.setMaximumArguments(false);
+        serviceCommand.setCommandPermissions("dungeonmaze.command.services", CommandPermissions.DefaultPermission.OP_ONLY);
+
+        // Register the version command
+        CommandDescription versionCommand = new CommandDescription(
+                new VersionCommand(),
+                new ArrayList<String>() {{
+                    add("version");
+                    add("ver");
+                    add("v");
+                    add("about");
+                    add("info");
+                }},
+                "Version info",
+                "Show detailed information about the installed Dungeon Maze version, and shows the developers, contributors, license and other information.",
+                dungeonMazeCommand);
+        versionCommand.setMaximumArguments(false);
+
+        // Add the base command to the commands array
+        this.commandDescriptions.add(dungeonMazeCommand);
+    }
+
+    /**
+     * Get the list of command descriptions
+     *
+     * @return List of command descriptions.
+     */
+    public List<CommandDescription> getCommandDescriptions() {
+        return this.commandDescriptions;
+    }
+
+    /**
+     * Get the number of command description count.
+     *
+     * @return Command description count.
+     */
+    public int getCommandDescriptionCount() {
+        return this.getCommandDescriptions().size();
+    }
+
+    /**
+     * Find the best suitable command for the specified reference.
+     *
+     * @param queryReference The query reference to find a command for.
+     *
+     * @return The command found, or null.
+     */
+    public FoundCommandResult findCommand(CommandParts queryReference) {
+        // Make sure the command reference is valid
+        if(queryReference.getCount() <= 0)
+            return null;
+
+        // Get the base command description
+        for(CommandDescription commandDescription : this.commandDescriptions) {
+            // Check whether there's a command description available for the current command
+            if(!commandDescription.isSuitableLabel(queryReference))
+                continue;
+
+            // Find the command reference, return the result
+            return commandDescription.findCommand(queryReference);
+        }
+
+        // No applicable command description found, return false
+        return null;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/CommandParts.java b/src/main/java/fr/xephi/authme/commands/dynamic/CommandParts.java
new file mode 100644
index 000000000..6aca82405
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/CommandParts.java
@@ -0,0 +1,204 @@
+package fr.xephi.authme.commands.dynamic;
+
+import com.timvisee.dungeonmaze.util.ListUtils;
+import com.timvisee.dungeonmaze.util.StringUtils;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class CommandParts {
+
+    /** The list of parts for this command. */
+    private List<String> parts = new ArrayList<>();
+
+    /**
+     * Constructor.
+     */
+    public CommandParts() { }
+
+    /**
+     * Constructor.
+     *
+     * @param part The part to add.
+     */
+    public CommandParts(String part) {
+        this.parts.add(part);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param commandParts The command parts instance.
+     */
+    public CommandParts(CommandParts commandParts) {
+        this.parts.addAll(commandParts.getList());
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param parts The list of parts.
+     */
+    public CommandParts(List<String> parts) {
+        this.parts.addAll(parts);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param base The base part.
+     * @param parts The list of additional parts.
+     */
+    public CommandParts(String base, List<String> parts) {
+        this.parts.add(base);
+        this.parts.addAll(parts);
+    }
+
+    /**
+     * Get the command parts.
+     *
+     * @return Command parts.
+     */
+    public List<String> getList() {
+        return this.parts;
+    }
+
+    /**
+     * Add a part.
+     *
+     * @param part The part to add.
+     *
+     * @return The result.
+     */
+    public boolean add(String part) {
+        return this.parts.add(part);
+    }
+
+    /**
+     * Add some parts.
+     *
+     * @param parts The parts to add.
+     *
+     * @return The result.
+     */
+    public boolean add(List<String> parts) {
+        return this.parts.addAll(parts);
+    }
+
+    /**
+     * Add some parts.
+     *
+     * @param parts The parts to add.
+     *
+     * @return The result.
+     */
+    public boolean add(String[] parts) {
+        for(String entry : parts)
+            add(entry);
+        return true;
+    }
+
+    /**
+     * Get the number of parts.
+     *
+     * @return Part count.
+     */
+    public int getCount() {
+        return this.parts.size();
+    }
+
+    /**
+     * Get a part by it's index.
+     *
+     * @param i Part index.
+     *
+     * @return The part.
+     */
+    public String get(int i) {
+        // Make sure the index is in-bound
+        if(i < 0 || i >= getCount())
+            return null;
+
+        // Get and return the argument
+        return this.parts.get(i);
+    }
+
+    /**
+     * Get a range of the parts starting at the specified index up to the end of the range.
+     *
+     * @param start The starting index.
+     *
+     * @return The parts range. Arguments that were out of bound are not included.
+     */
+    public List<String> getRange(int start) {
+        return getRange(start, getCount() - start);
+    }
+
+    /**
+     * Get a range of the parts.
+     *
+     * @param start The starting index.
+     * @param count The number of parts to get.
+     *
+     * @return The parts range. Parts that were out of bound are not included.
+     */
+    public List<String> getRange(int start, int count) {
+        // Create a new list to put the range into
+        List<String> elements = new ArrayList<>();
+
+        // Get the range
+        for(int i = start; i < start + count; i++) {
+            // Get the part and add it if it's valid
+            String element = get(i);
+            if(element != null)
+                elements.add(element);
+        }
+
+        // Return the list of parts
+        return elements;
+    }
+
+    /**
+     * Get the difference value between two references. This won't do a full compare, just the last reference parts instead.
+     *
+     * @param other The other reference.
+     *
+     * @return The result from zero to above. A negative number will be returned on error.
+     */
+    @SuppressWarnings("UnusedDeclaration")
+    public double getDifference(CommandParts other) {
+        return getDifference(other, false);
+    }
+
+    /**
+     * Get the difference value between two references.
+     *
+     * @param other The other reference.
+     * @param fullCompare True to compare the full references as far as the range reaches.
+     *
+     * @return The result from zero to above. A negative number will be returned on error.
+     */
+    public double getDifference(CommandParts other, boolean fullCompare) {
+        // Make sure the other reference is correct
+        if(other == null)
+            return -1;
+
+        // Get the range to use
+        int range = Math.min(this.getCount(), other.getCount());
+
+        // Get and the difference
+        if(fullCompare)
+            return StringUtils.getDifference(this.toString(), other.toString());
+        return StringUtils.getDifference(this.getRange(range - 1, 1).toString(), other.getRange(range - 1, 1).toString());
+    }
+
+    /**
+     * Convert the parts to a string.
+     *
+     * @return The part as a string.
+     */
+    @Override
+    public String toString() {
+        return ListUtils.implode(this.parts, " ");
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/CommandPermissions.java b/src/main/java/fr/xephi/authme/commands/dynamic/CommandPermissions.java
new file mode 100644
index 000000000..2d79f056a
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/CommandPermissions.java
@@ -0,0 +1,182 @@
+package fr.xephi.authme.commands.dynamic;
+
+import com.timvisee.dungeonmaze.Core;
+import com.timvisee.dungeonmaze.permission.PermissionsManager;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@SuppressWarnings("UnusedDeclaration")
+public class CommandPermissions {
+
+    /** Defines the permission nodes required to have permission to execute this command. */
+    private List<String> permissionNodes = new ArrayList<>();
+    /** Defines the default permission if the permission nodes couldn't be used. */
+    private DefaultPermission defaultPermission = DefaultPermission.NOT_ALLOWED;
+
+    /**
+     * Constructor.
+     */
+    public CommandPermissions() { }
+
+    /**
+     * Constructor.
+     *
+     * @param permissionNode The permission node required to execute a command.
+     * @param defaultPermission The default permission if the permission nodes couldn't be used.
+     */
+    public CommandPermissions(String permissionNode, DefaultPermission defaultPermission) {
+        this.permissionNodes.add(permissionNode);
+        this.defaultPermission = defaultPermission;
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param permissionNodes The permission nodes required to execute a command.
+     * @param defaultPermission The default permission if the permission nodes couldn't be used.
+     */
+    public CommandPermissions(List<String> permissionNodes, DefaultPermission defaultPermission) {
+        this.permissionNodes.addAll(permissionNodes);
+    }
+
+    /**
+     * Add a permission node required to execute this command.
+     *
+     * @param permissionNode The permission node to add.
+     *
+     * @return True on success, false on failure.
+     */
+    public boolean addPermissionNode(String permissionNode) {
+        // Trim the permission node
+        permissionNode = permissionNode.trim();
+
+        // Make sure the permission node is valid
+        if(permissionNode.length() == 0)
+            return false;
+
+        // Make sure this permission node hasn't been added already
+        if(hasPermissionNode(permissionNode))
+            return true;
+
+        // Add the permission node, return the result
+        return this.permissionNodes.add(permissionNode);
+    }
+
+    /**
+     * Check whether this command requires a specified permission node to execute.
+     *
+     * @param permissionNode The permission node to check for.
+     *
+     * @return True if this permission node is required, false if not.
+     */
+    public boolean hasPermissionNode(String permissionNode) {
+        return this.permissionNodes.contains(permissionNode);
+    }
+
+    /**
+     * Get the permission nodes required to execute this command.
+     *
+     * @return The permission nodes required to execute this command.
+     */
+    public List<String> getPermissionNodes() {
+        return this.permissionNodes;
+    }
+
+    /**
+     * Get the number of permission nodes set.
+     *
+     * @return Permission node count.
+     */
+    public int getPermissionNodeCount() {
+        return this.permissionNodes.size();
+    }
+
+    /**
+     * Set the permission nodes required to execute this command.
+     *
+     * @param permissionNodes The permission nodes required to execute this command.
+     */
+    public void setPermissionNodes(List<String> permissionNodes) {
+        this.permissionNodes = permissionNodes;
+    }
+
+    /**
+     * Check whether this command requires any permission to be executed. This is based on the getPermission() method.
+     *
+     * @return True if this command requires any permission to be executed by a player.
+     */
+    public boolean hasPermission(CommandSender sender) {
+        // Make sure any permission node is set
+        if(getPermissionNodeCount() == 0)
+            return true;
+
+        // Get the default permission
+        final boolean defaultPermission = getDefaultPermissionCommandSender(sender);
+
+        // Make sure the command sender is a player, if not use the default
+        if(!(sender instanceof Player))
+            return defaultPermission;
+
+        // Get the player instance
+        Player player = (Player) sender;
+
+        // Get the permissions manager, and make sure it's instance is valid
+        PermissionsManager permissionsManager = Core.getPermissionsManager();
+        if(permissionsManager == null)
+            return false;
+
+        // Check whether the player has permission, return the result
+        for(String node : this.permissionNodes)
+            if(!permissionsManager.hasPermission(player, node, defaultPermission))
+                return false;
+        return true;
+    }
+
+    /**
+     * Get the default permission if the permission nodes couldn't be used.
+     *
+     * @return The default permission.
+     */
+    public DefaultPermission getDefaultPermission() {
+        return this.defaultPermission;
+    }
+
+    /**
+     * Set the default permission used if the permission nodes couldn't be used.
+     *
+     * @param defaultPermission The default permission.
+     */
+    public void setDefaultPermission(DefaultPermission defaultPermission) {
+        this.defaultPermission = defaultPermission;
+    }
+
+    /**
+     * Get the default permission for a specified command sender.
+     *
+     * @param sender The command sender to get the default permission for.
+     *
+     * @return True if the command sender has permission by default, false otherwise.
+     */
+    public boolean getDefaultPermissionCommandSender(CommandSender sender) {
+        switch(getDefaultPermission()) {
+        case ALLOWED:
+            return true;
+
+        case OP_ONLY:
+            return sender.isOp();
+
+        case NOT_ALLOWED:
+        default:
+            return false;
+        }
+    }
+
+    public enum DefaultPermission {
+        NOT_ALLOWED,
+        OP_ONLY,
+        ALLOWED
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/ExecutableCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/ExecutableCommand.java
new file mode 100644
index 000000000..b9a89a589
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/ExecutableCommand.java
@@ -0,0 +1,17 @@
+package fr.xephi.authme.commands.dynamic;
+
+import org.bukkit.command.CommandSender;
+
+public abstract class ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    public abstract boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments);
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/FoundCommandResult.java b/src/main/java/fr/xephi/authme/commands/dynamic/FoundCommandResult.java
new file mode 100644
index 000000000..a64e825ac
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/FoundCommandResult.java
@@ -0,0 +1,151 @@
+package fr.xephi.authme.commands.dynamic;
+
+import org.bukkit.command.CommandSender;
+
+public class FoundCommandResult {
+
+    /** The command description instance. */
+    private CommandDescription commandDescription;
+    /** The command reference. */
+    private CommandParts commandReference;
+    /** The command arguments. */
+    private CommandParts commandArguments;
+    /** The original search query reference. */
+    private CommandParts queryReference;
+
+    /**
+     * Constructor.
+     *
+     * @param commandDescription The command description.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     * @param queryReference The original query reference.
+     */
+    public FoundCommandResult(CommandDescription commandDescription, CommandParts commandReference, CommandParts commandArguments, CommandParts queryReference) {
+        this.commandDescription = commandDescription;
+        this.commandReference = commandReference;
+        this.commandArguments = commandArguments;
+        this.queryReference = queryReference;
+    }
+
+    /**
+     * Check whether the command was suitable.
+     *
+     * @return True if the command was suitable, false otherwise.
+     */
+    public boolean hasProperArguments() {
+        // Make sure the command description is set
+        if(this.commandDescription == null)
+            return false;
+
+        // Get and return the result
+        return getCommandDescription().getSuitableArgumentsDifference(this.queryReference) == 0;
+    }
+
+    /**
+     * Get the command description.
+     *
+     * @return Command description.
+     */
+    public CommandDescription getCommandDescription() {
+        return this.commandDescription;
+    }
+
+    /**
+     * Set the command description.
+     *
+     * @param commandDescription The command description.
+     *
+     */
+    @SuppressWarnings("UnusedDeclaration")
+    public void setCommandDescription(CommandDescription commandDescription) {
+        this.commandDescription = commandDescription;
+    }
+
+    /**
+     * Check whether the command is executable.
+     *
+     * @return True if the command is executable, false otherwise.
+     */
+    public boolean isExecutable() {
+        // Make sure the command description is valid
+        if(this.commandDescription == null)
+            return false;
+
+        // Check whether the command is executable, return the result
+        return this.commandDescription.isExecutable();
+    }
+
+    /**
+     * Execute the command.
+     *
+     * @param sender The command sender that executed the command.
+     *
+     * @return True on success, false on failure.
+     */
+    public boolean executeCommand(CommandSender sender) {
+        // Make sure the command description is valid
+        if(this.commandDescription == null)
+            return false;
+
+        // Execute the command
+        return this.commandDescription.execute(sender, this.commandReference, this.commandArguments);
+    }
+
+    /**
+     * Check whether a command sender has permission to execute the command.
+     *
+     * @param sender The command sender.
+     *
+     * @return True if the command sender has permission, false otherwise.
+     */
+    public boolean hasPermission(CommandSender sender) {
+        // Make sure the command description is valid
+        if(this.commandDescription == null)
+            return false;
+
+        // Get and return the permission
+        return this.commandDescription.getCommandPermissions().hasPermission(sender);
+    }
+
+    /**
+     * Get the command reference.
+     *
+     * @return The command reference.
+     */
+    public CommandParts getCommandReference() {
+        return this.commandReference;
+    }
+
+    /**
+     * Get the command arguments.
+     *
+     * @return The command arguments.
+     */
+    public CommandParts getCommandArguments() {
+        return this.commandArguments;
+    }
+
+    /**
+     * Get the original query reference.
+     *
+     * @return Original query reference.
+     */
+    public CommandParts getQueryReference() {
+        return this.queryReference;
+    }
+
+    /**
+     * Get the difference value between the original query and the result reference.
+     *
+     * @return The difference value.
+     */
+    public double getDifference() {
+        // Get the difference through the command found
+        if(this.commandDescription != null)
+            return this.commandDescription.getCommandDifference(this.queryReference);
+
+        // Get the difference from the query reference
+        return this.queryReference.getDifference(commandReference, true);
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/executable/CheckUpdatesCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/executable/CheckUpdatesCommand.java
new file mode 100644
index 000000000..2e9040c05
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/executable/CheckUpdatesCommand.java
@@ -0,0 +1,78 @@
+package fr.xephi.authme.commands.dynamic.executable;
+
+import com.timvisee.dungeonmaze.Core;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.ExecutableCommand;
+import com.timvisee.dungeonmaze.update.UpdateCheckerService;
+import com.timvisee.dungeonmaze.update.bukkit.Updater;
+import com.timvisee.dungeonmaze.util.Profiler;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+
+public class CheckUpdatesCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender           The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Profile the process
+        Profiler p = new Profiler(true);
+
+        // Show a status message
+        sender.sendMessage(ChatColor.YELLOW + "Checking for Dungeon Maze updates...");
+
+        // Get the update checker service, shut it down and start it again to force an update check
+        UpdateCheckerService service = Core.getUpdateCheckerService();
+        service.shutdownUpdateChecker();
+        service.setupUpdateChecker();
+
+        // Get the update checker instance
+        Updater uc = service.getUpdateChecker();
+
+        // Show a status message
+        sender.sendMessage(ChatColor.YELLOW + "Update checking succeed, took " + p.getTimeFormatted() + "!");
+
+        // Get the version number of the new update
+        String newVer = uc.getLatestName();
+
+        // Make sure any update is available
+        if(uc.getResult() == Updater.UpdateResult.UPDATE_AVAILABLE) {
+            sender.sendMessage(ChatColor.GREEN + "New Dungeon Maze version available: " + String.valueOf(newVer));
+            return true;
+
+        } else if(uc.getResult() == Updater.UpdateResult.NO_UPDATE) {
+            sender.sendMessage(ChatColor.GREEN + "You are running the latest Dungeon Maze version!");
+            return true;
+        }
+
+        // Make sure the new version is compatible with the current bukkit version
+        if(uc.getResult() == Updater.UpdateResult.FAIL_NOVERSION) {
+            // Show a message
+            sender.sendMessage(ChatColor.GREEN + "New Dungeon Maze version available: " + String.valueOf(newVer));
+            sender.sendMessage(ChatColor.DARK_RED + "The new version is not compatible with your Bukkit version!");
+            sender.sendMessage(ChatColor.DARK_RED + "Please update your Bukkit to " +  uc.getLatestGameVersion() + " or higher!");
+            return true;
+        }
+
+        // Check whether the update was installed or not
+        if(uc.getResult() == Updater.UpdateResult.SUCCESS)
+            sender.sendMessage(ChatColor.GREEN + "New version installed (" + String.valueOf(newVer) + "). Server reboot required!");
+
+        else {
+            sender.sendMessage(ChatColor.GREEN + "New version found: " + String.valueOf(newVer));
+            //noinspection SpellCheckingInspection
+            sender.sendMessage(ChatColor.GREEN + "Use " + ChatColor.GOLD + "/dm installupdate" +
+                    ChatColor.GREEN + " to automatically install the new version!");
+        }
+
+        // Return the result
+        return true;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/executable/CreateWorldCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/executable/CreateWorldCommand.java
new file mode 100644
index 000000000..a37877453
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/executable/CreateWorldCommand.java
@@ -0,0 +1,140 @@
+package fr.xephi.authme.commands.dynamic.executable;
+
+import com.timvisee.dungeonmaze.Core;
+import com.timvisee.dungeonmaze.DungeonMaze;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.ExecutableCommand;
+import com.timvisee.dungeonmaze.util.Profiler;
+import com.timvisee.dungeonmaze.world.WorldManager;
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.World;
+import org.bukkit.WorldCreator;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+public class CreateWorldCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Get and trim the preferred world name
+        String worldName = commandArguments.get(0).trim();
+
+        // Validate the world name
+        if(!WorldManager.isValidWorldName(worldName)) {
+            sender.sendMessage(ChatColor.DARK_RED + worldName);
+            sender.sendMessage(ChatColor.DARK_RED + "The world name contains invalid characters!");
+            return true;
+        }
+
+        // Set whether the world should be preloaded
+        boolean preloadWorld = true;
+
+        // Get whether the world should be preloaded based on the arguments
+        if(commandArguments.getCount() >= 2) {
+            String arg = commandArguments.get(1);
+
+            // Check whether the argument equals 'force'
+            if(arg.equalsIgnoreCase("preload"))
+                preloadWorld = true;
+
+            else if(arg.equalsIgnoreCase("true") || arg.equalsIgnoreCase("t") || arg.equalsIgnoreCase("yes") || arg.equalsIgnoreCase("y"))
+                preloadWorld = true;
+
+            else if(arg.equalsIgnoreCase("false") || arg.equalsIgnoreCase("f") || arg.equalsIgnoreCase("no") || arg.equalsIgnoreCase("n"))
+                preloadWorld = false;
+
+            else {
+                sender.sendMessage(ChatColor.DARK_RED + arg);
+                sender.sendMessage(ChatColor.DARK_RED + "Invalid argument!");
+                return true;
+            }
+        }
+
+        // Get the world manager, and make sure it's valid
+        WorldManager worldManager = Core.getWorldManager();
+        boolean showWorldManagerError = false;
+        if(worldManager == null)
+            showWorldManagerError = true;
+        else if(!worldManager.isInit())
+            showWorldManagerError = true;
+        if(showWorldManagerError) {
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to create the world, world manager not available!");
+            return true;
+        }
+
+        // Make sure the world doesn't exist
+        if(worldManager.isWorld(worldName)) {
+            sender.sendMessage(ChatColor.DARK_RED + "The world " + ChatColor.GOLD + worldName + ChatColor.DARK_RED + " already exists!");
+            sender.sendMessage(ChatColor.YELLOW + "Use the command " + ChatColor.GOLD + "/" + commandReference.get(0) + " listworlds" + ChatColor.YELLOW + " to list all worlds.");
+            sender.sendMessage(ChatColor.YELLOW + "Use the command " + ChatColor.GOLD + "/" + commandReference.get(0) + " loadworld " + worldName + ChatColor.YELLOW + " to load the world.");
+            return true;
+        }
+
+        // Show a status message
+        sender.sendMessage(ChatColor.YELLOW + "Preparing the server...");
+
+        // Prepare the server for the new world
+        if(!worldManager.prepareDungeonMazeWorld(worldName, preloadWorld)) {
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to prepare the server!");
+            return true;
+        }
+
+        // Show a status message
+        sender.sendMessage(ChatColor.YELLOW + "Generating the " + DungeonMaze.PLUGIN_NAME + " " + ChatColor.GOLD + worldName + ChatColor.YELLOW + "...");
+        Bukkit.broadcastMessage(ChatColor.LIGHT_PURPLE + "Generating a new world, expecting lag for a while...");
+
+        // Profile the world generation
+        Profiler p = new Profiler(true);
+
+        // Create the world
+        // TODO: Put this in a separate function!
+        WorldCreator newWorld = new WorldCreator(worldName);
+        newWorld.generator(DungeonMaze.instance.getDungeonMazeGenerator());
+        World world = newWorld.createWorld();
+
+        // Force-save the level.dat file for the world, profile the process
+        Profiler pWorldSave = new Profiler(true);
+        try {
+            // Force-save the world, and show some status messages
+            Core.getLogger().info("Force saving the level.dat file for '" + world.getName() + "'...");
+            world.save();
+            Core.getLogger().info("World saved successfully, took " + pWorldSave.getTimeFormatted() + "!");
+
+        } catch(Exception ex) {
+            Core.getLogger().error("Failed to save the world after " + pWorldSave.getTimeFormatted() + "!");
+        }
+
+        // Make sure the world instance is valid
+        if(world == null) {
+            Bukkit.broadcastMessage(ChatColor.LIGHT_PURPLE + "World generation failed after " + p.getTimeFormatted() + "!");
+            sender.sendMessage(ChatColor.DARK_RED + "The " + DungeonMaze.PLUGIN_NAME + " " + ChatColor.GOLD + worldName + ChatColor.GREEN +
+                    " failed to generate after " + p.getTimeFormatted() + "!");
+            return true;
+        }
+
+        // Show a status message
+        Bukkit.broadcastMessage(ChatColor.LIGHT_PURPLE + "World generation finished, took " + p.getTimeFormatted() + "!");
+        sender.sendMessage(ChatColor.GREEN + "The " + DungeonMaze.PLUGIN_NAME + " " + ChatColor.GOLD + worldName + ChatColor.GREEN +
+                " has successfully been generated, took " + p.getTimeFormatted() + "!");
+
+        // If the command was executed by a player, teleport the player
+        if(sender instanceof Player) {
+            // Teleport the player
+            ((Player) sender).teleport(world.getSpawnLocation());
+            sender.sendMessage(ChatColor.GREEN + "You have been teleported to " + ChatColor.GOLD + worldName + ChatColor.GREEN + "!");
+        }
+
+        // Return the result
+        return true;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/executable/DungeonMazeCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/executable/DungeonMazeCommand.java
new file mode 100644
index 000000000..f2d991710
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/executable/DungeonMazeCommand.java
@@ -0,0 +1,28 @@
+package fr.xephi.authme.commands.dynamic.executable;
+
+import com.timvisee.dungeonmaze.DungeonMaze;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.ExecutableCommand;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+
+public class DungeonMazeCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Show some version info
+        sender.sendMessage(ChatColor.GREEN + "This server is running " + DungeonMaze.PLUGIN_NAME + " v" + DungeonMaze.getVersionName() + "! " + ChatColor.RED + "<3");
+        sender.sendMessage(ChatColor.YELLOW + "Use the command " + ChatColor.GOLD + "/" + commandReference.get(0) + " help" + ChatColor.YELLOW + " to view help.");
+        sender.sendMessage(ChatColor.YELLOW + "Use the command " + ChatColor.GOLD + "/" + commandReference.get(0) + " about" + ChatColor.YELLOW + " to view about.");
+        return true;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/executable/HelpCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/executable/HelpCommand.java
new file mode 100644
index 000000000..2c07f28d0
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/executable/HelpCommand.java
@@ -0,0 +1,37 @@
+package fr.xephi.authme.commands.dynamic.executable;
+
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.ExecutableCommand;
+import com.timvisee.dungeonmaze.command.help.HelpProvider;
+import org.bukkit.command.CommandSender;
+
+public class HelpCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender           The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Check whether quick help should be shown
+        boolean quickHelp = commandArguments.getCount() == 0;
+
+        // Set the proper command arguments for the quick help
+        if(quickHelp)
+            commandArguments = new CommandParts(commandReference.get(0));
+
+        // Show the new help
+        if(quickHelp)
+            HelpProvider.showHelp(sender, commandReference, commandArguments, false, false, false, false, false, true);
+        else
+            HelpProvider.showHelp(sender, commandReference, commandArguments);
+
+        // Return the result
+        return true;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/executable/InstallUpdateCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/executable/InstallUpdateCommand.java
new file mode 100644
index 000000000..0bc0126e2
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/executable/InstallUpdateCommand.java
@@ -0,0 +1,75 @@
+package fr.xephi.authme.commands.dynamic.executable;
+
+import com.timvisee.dungeonmaze.Core;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.ExecutableCommand;
+import com.timvisee.dungeonmaze.update.UpdateCheckerService;
+import com.timvisee.dungeonmaze.update.bukkit.Updater;
+import com.timvisee.dungeonmaze.util.Profiler;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+
+public class InstallUpdateCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender           The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Profile the process
+        Profiler p = new Profiler(true);
+
+        // Show a status message
+        sender.sendMessage(ChatColor.YELLOW + "Checking for Dungeon Maze updates...");
+
+        // Get the update checker service, shut it down and start it again to force an update check
+        UpdateCheckerService service = Core.getUpdateCheckerService();
+        service.shutdownUpdateChecker();
+        service.setupUpdateChecker();
+
+        // Get the update checker instance
+        Updater uc = service.getUpdateChecker();
+
+        // TODO: Automatically install the actual update!
+
+        // Show a status message
+        sender.sendMessage(ChatColor.YELLOW + "Update checking succeed, took " + p.getTimeFormatted() + "!");
+
+        // Get the version number of the new update
+        String newVer = uc.getLatestName();
+
+        // Make sure any update is available
+        if(uc.getResult() == Updater.UpdateResult.UPDATE_AVAILABLE) {
+            sender.sendMessage(ChatColor.GREEN + "New Dungeon Maze version available: " + String.valueOf(newVer));
+            return true;
+
+        } else if(uc.getResult() == Updater.UpdateResult.NO_UPDATE) {
+            sender.sendMessage(ChatColor.GREEN + "You are running the latest Dungeon Maze version!");
+            return true;
+        }
+
+        // Make sure the new version is compatible with the current bukkit version
+        if(uc.getResult() == Updater.UpdateResult.FAIL_NOVERSION) {
+            // Show a message
+            sender.sendMessage(ChatColor.GREEN + "New Dungeon Maze version available: " + String.valueOf(newVer));
+            sender.sendMessage(ChatColor.DARK_RED + "The new version is not compatible with your Bukkit version!");
+            sender.sendMessage(ChatColor.DARK_RED + "Please update your Bukkit to " +  uc.getLatestGameVersion() + " or higher!");
+            return true;
+        }
+
+        // Check whether the update was installed or not
+        if(uc.getResult() == Updater.UpdateResult.SUCCESS)
+            sender.sendMessage(ChatColor.GREEN + "New version installed (" + String.valueOf(newVer) + "). Server reboot required!");
+        else
+            sender.sendMessage(ChatColor.DARK_RED + "Automatic installation failed, please update manually!");
+
+        // Return the result
+        return true;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/executable/ListWorldCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/executable/ListWorldCommand.java
new file mode 100644
index 000000000..cc4e5fb7b
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/executable/ListWorldCommand.java
@@ -0,0 +1,67 @@
+package fr.xephi.authme.commands.dynamic.executable;
+
+import com.timvisee.dungeonmaze.Core;
+import com.timvisee.dungeonmaze.DungeonMaze;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.ExecutableCommand;
+import com.timvisee.dungeonmaze.world.WorldManager;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+
+import java.util.List;
+
+public class ListWorldCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender           The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Get the world manager and make sure it's valid
+        WorldManager worldManager = Core.getWorldManager();
+        if(worldManager == null) {
+            sender.sendMessage(ChatColor.DARK_RED + "Error, failed to list the worlds!");
+            return true;
+        }
+
+        // Get the list of Dungeon Maze worlds and other worlds
+        List<String> dungeonMazeWorlds = worldManager.getDungeonMazeWorlds();
+        List<String> otherWorlds = worldManager.getWorlds(true);
+
+        // Show the list of Dungeon Maze worlds
+        sender.sendMessage(ChatColor.GOLD + "==========[ \" + DungeonMaze.PLUGIN_NAME.toUpperCase() + \" WORLDS ]==========");
+        sender.sendMessage(ChatColor.GOLD + DungeonMaze.PLUGIN_NAME + " worlds:");
+        if(dungeonMazeWorlds.size() > 0) {
+            for(String worldName : dungeonMazeWorlds) {
+                if(worldManager.isDungeonMazeWorldLoaded(worldName))
+                    sender.sendMessage(ChatColor.WHITE + " " + worldName + ChatColor.GREEN + ChatColor.ITALIC + " (Loaded)");
+                else
+                    sender.sendMessage(ChatColor.WHITE + " " + worldName + ChatColor.GRAY + ChatColor.ITALIC + " (Not Loaded)");
+            }
+        } else
+            // No Dungeon Maze world available, show a message
+            sender.sendMessage(ChatColor.GRAY + "" + ChatColor.ITALIC + " No Dungeon Maze worlds available!");
+
+        // Show the list of other worlds
+        sender.sendMessage(ChatColor.GOLD + "Other worlds:");
+        if(otherWorlds.size() > 0) {
+            for(String worldName : otherWorlds) {
+                if(worldManager.isWorldLoaded(worldName))
+                    sender.sendMessage(ChatColor.WHITE + " " + worldName + ChatColor.GREEN + ChatColor.ITALIC + " (Loaded)");
+                else
+                    sender.sendMessage(ChatColor.WHITE + " " + worldName + ChatColor.GRAY + ChatColor.ITALIC + " (Not Loaded)");
+            }
+        } else
+            // No other world available, show a message
+            sender.sendMessage(ChatColor.GRAY + "" + ChatColor.ITALIC + " No other worlds available!");
+
+        // Return the result
+        return true;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/executable/LoadWorldCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/executable/LoadWorldCommand.java
new file mode 100644
index 000000000..ea7cb9790
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/executable/LoadWorldCommand.java
@@ -0,0 +1,75 @@
+package fr.xephi.authme.commands.dynamic.executable;
+
+import com.timvisee.dungeonmaze.Core;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.ExecutableCommand;
+import com.timvisee.dungeonmaze.util.Profiler;
+import com.timvisee.dungeonmaze.world.WorldManager;
+import org.bukkit.ChatColor;
+import org.bukkit.World;
+import org.bukkit.command.CommandSender;
+
+public class LoadWorldCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Get and trim the preferred world name
+        String worldName = commandArguments.get(0).trim();
+
+        // Profile the world loading
+        Profiler p = new Profiler(true);
+
+        // Validate the world name
+        if(!WorldManager.isValidWorldName(worldName)) {
+            sender.sendMessage(ChatColor.DARK_RED + worldName);
+            sender.sendMessage(ChatColor.DARK_RED + "The world name contains invalid characters!");
+            return true;
+        }
+
+        // Get the world manager, and make sure it's valid
+        WorldManager worldManager = Core.getWorldManager();
+        boolean showWorldManagerError = false;
+        if(worldManager == null)
+            showWorldManagerError = true;
+        else if(!worldManager.isInit())
+            showWorldManagerError = true;
+        if(showWorldManagerError) {
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to load the world, world manager not available!");
+            return true;
+        }
+
+        // Make sure the world exists
+        if(!worldManager.isWorld(worldName)) {
+            sender.sendMessage(ChatColor.DARK_RED + "The world " + ChatColor.GOLD + worldName + ChatColor.DARK_RED + " doesn't exist!");
+            return true;
+        }
+
+        // Make sure the world isn't loaded already
+        if(worldManager.isWorldLoaded(worldName)) {
+            sender.sendMessage(ChatColor.GREEN + "The world " + ChatColor.GOLD + worldName + ChatColor.GREEN + " is already loaded!");
+            return true;
+        }
+
+        // Load the world, store the instance
+        World world = worldManager.loadWorld(worldName);
+
+        // Make sure the world was loaded
+        if(world == null) {
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to load the world!");
+            return true;
+        }
+
+        // Show a status message, return the result
+        sender.sendMessage(ChatColor.GREEN + "The world " + ChatColor.GOLD + worldName + ChatColor.GREEN + " has been loaded, took " + p.getTimeFormatted() + "!");
+        return true;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/executable/ReloadCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/executable/ReloadCommand.java
new file mode 100644
index 000000000..69caed0d6
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/executable/ReloadCommand.java
@@ -0,0 +1,75 @@
+package fr.xephi.authme.commands.dynamic.executable;
+
+import com.timvisee.dungeonmaze.Core;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.ExecutableCommand;
+import com.timvisee.dungeonmaze.config.ConfigHandler;
+import com.timvisee.dungeonmaze.util.Profiler;
+import com.timvisee.dungeonmaze.world.WorldManager;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+
+public class ReloadCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender           The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Profile the reload process
+        Profiler p = new Profiler(true);
+
+        // Show a status message
+        sender.sendMessage(ChatColor.YELLOW + "Reloading Dungeon Maze...");
+
+        /* // Set whether the reload is forced
+        boolean force = false;
+
+        // Get whether the reload should be forced from the command arguments
+        if(commandArguments.getCount() >= 1) {
+            String arg = commandArguments.get(0);
+
+            // Check whether the argument equals 'force'
+            if(arg.equalsIgnoreCase("force") || arg.equalsIgnoreCase("forced"))
+                force = true;
+
+            else if(arg.equalsIgnoreCase("true") || arg.equalsIgnoreCase("t") || arg.equalsIgnoreCase("yes") || arg.equalsIgnoreCase("y"))
+                force = true;
+
+            else if(arg.equalsIgnoreCase("false") || arg.equalsIgnoreCase("f") || arg.equalsIgnoreCase("no") || arg.equalsIgnoreCase("n"))
+                force = false;
+
+            else {
+                sender.sendMessage(ChatColor.DARK_RED + arg);
+                sender.sendMessage(ChatColor.DARK_RED + "Invalid argument!");
+                return true;
+            }
+        }*/
+
+        // Reload the configuration
+        ConfigHandler configHandler = Core.getConfigHandler();
+        if(configHandler != null) {
+            configHandler.load();
+            sender.sendMessage(ChatColor.YELLOW + "Reloaded the configuration!");
+        } else
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to reload the configuration!");
+
+        // Get the world manager to reload the world list, and make sure it's valid
+        WorldManager worldManager = Core.getWorldManager();
+        if(worldManager != null) {
+            worldManager.refresh();
+            sender.sendMessage(ChatColor.YELLOW + "Reloaded the worlds!");
+        } else
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to reload the worlds!");
+
+        // Dungeon Maze reloaded, show a status message
+        sender.sendMessage(ChatColor.GREEN + "Dungeon Maze has been reloaded successfully, took " + p.getTimeFormatted() + "!");
+        return true;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/executable/ReloadPermissionsCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/executable/ReloadPermissionsCommand.java
new file mode 100644
index 000000000..6a39a1620
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/executable/ReloadPermissionsCommand.java
@@ -0,0 +1,56 @@
+package fr.xephi.authme.commands.dynamic.executable;
+
+import com.timvisee.dungeonmaze.Core;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.ExecutableCommand;
+import com.timvisee.dungeonmaze.permission.PermissionsManager;
+import com.timvisee.dungeonmaze.util.Profiler;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+
+public class ReloadPermissionsCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender           The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Profile the permissions reload process
+        Profiler p = new Profiler(true);
+
+        // Show a status message
+        sender.sendMessage(ChatColor.YELLOW + "Reloading permissions...");
+        Core.getLogger().info("Reloading permissions...");
+
+        // Get the permissions manager and make sure it's valid
+        PermissionsManager permissionsManager = Core.getPermissionsManager();
+        if(permissionsManager == null) {
+            Core.getLogger().info("Failed to access the permissions manager after " + p.getTimeFormatted() + "!");
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to access the permissions manager after " + p.getTimeFormatted() + "!");
+            return true;
+        }
+
+        // Reload the permissions service, show an error on failure
+        if(!permissionsManager.reload()) {
+            Core.getLogger().info("Failed to reload permissions after " + p.getTimeFormatted() + "!");
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to reload permissions after " + p.getTimeFormatted() + "!");
+            return true;
+        }
+
+        // Show a success message
+        Core.getLogger().info("Permissions reloaded successfully, took " + p.getTimeFormatted() + "!");
+        sender.sendMessage(ChatColor.GREEN + "Permissions reloaded successfully, took " + p.getTimeFormatted() + "!");
+
+        // Get and show the permissions system being used
+        String permissionsSystem = ChatColor.GOLD + permissionsManager.getUsedPermissionsSystemType().getName();
+        Core.getLogger().info("Used permissions system: " + permissionsSystem);
+        sender.sendMessage(ChatColor.GREEN + "Used permissions system: " + permissionsSystem);
+        return true;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/executable/RestartCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/executable/RestartCommand.java
new file mode 100644
index 000000000..b5d790ef5
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/executable/RestartCommand.java
@@ -0,0 +1,105 @@
+package fr.xephi.authme.commands.dynamic.executable;
+
+import com.timvisee.dungeonmaze.Core;
+import com.timvisee.dungeonmaze.DungeonMaze;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.ExecutableCommand;
+import com.timvisee.dungeonmaze.util.Profiler;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+
+public class RestartCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender           The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Profile the restart process
+        Profiler p = new Profiler(true);
+
+        // Set whether the restart is forced
+        boolean force = false;
+
+        // Get whether the restart should be forced from the command arguments
+        if(commandArguments.getCount() >= 1) {
+            String arg = commandArguments.get(0);
+
+            // Check whether the argument equals 'force'
+            if(arg.equalsIgnoreCase("force") || arg.equalsIgnoreCase("forced"))
+                force = true;
+
+            else if(arg.equalsIgnoreCase("true") || arg.equalsIgnoreCase("t") || arg.equalsIgnoreCase("yes") || arg.equalsIgnoreCase("y"))
+                force = true;
+
+            else if(arg.equalsIgnoreCase("false") || arg.equalsIgnoreCase("f") || arg.equalsIgnoreCase("no") || arg.equalsIgnoreCase("n"))
+                force = false;
+
+            else {
+                sender.sendMessage(ChatColor.DARK_RED + arg);
+                sender.sendMessage(ChatColor.DARK_RED + "Invalid argument!");
+                return true;
+            }
+        }
+
+        // Show a restart warning
+        if(force) {
+            sender.sendMessage(ChatColor.YELLOW + "Force restarting Dungeon Maze...");
+            Core.getLogger().info("Force restarting Dungeon Maze...");
+        } else {
+            sender.sendMessage(ChatColor.YELLOW + "Restarting Dungeon Maze...");
+            Core.getLogger().info("Restarting Dungeon Maze...");
+        }
+
+        // Profile the Dungeon Maze Core destruction
+        Profiler stopCoreProfiler = new Profiler(true);
+
+        // Destroy the Dungeon Maze core
+        if(!DungeonMaze.instance.destroyCore(force)) {
+            // Failed to destroy the core, show a status message
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to stop the Dungeon Maze Core after " + stopCoreProfiler.getTimeFormatted() + "!");
+            sender.sendMessage(ChatColor.DARK_RED + "Please use " + ChatColor.GOLD + "/reload" + ChatColor.DARK_RED + " for plugin instability reasons!");
+            Core.getLogger().error("Failed to stop the core, after " + stopCoreProfiler.getTimeFormatted() + "!");
+
+            // Return if the restart isn't force
+            if(!force)
+                return true;
+        }
+
+        // Show a status message
+        sender.sendMessage(ChatColor.YELLOW + "Dungeon Maze Core stopped, took " + stopCoreProfiler.getTimeFormatted() + "!");
+
+        // Profile the core starting
+        Profiler startCoreProfiler = new Profiler(true);
+
+        // Initialize the core, show the result status
+        if(!DungeonMaze.instance.initCore()) {
+            // Core failed to initialize, show a status message
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to start the Dungeon Maze Core after " + startCoreProfiler.getTimeFormatted() + "!");
+            sender.sendMessage(ChatColor.DARK_RED + "Please use " + ChatColor.GOLD + "/reload" + ChatColor.DARK_RED + " for plugin instability reasons!");
+            Core.getLogger().error("Failed to start the core, after " + startCoreProfiler.getTimeFormatted() + "!");
+
+            // Return if the restart isn't forced
+            if(!force)
+                return true;
+        }
+
+        // Core initialized, show a status message
+        sender.sendMessage(ChatColor.YELLOW + "Dungeon Maze Core started, took " + startCoreProfiler.getTimeFormatted() + "!");
+
+        // Show a status message of the running services
+        final int runningServices = Core.instance.getServiceManager().getServiceCount(true);
+        final int totalServices = Core.instance.getServiceManager().getServiceCount();
+        sender.sendMessage(ChatColor.YELLOW + "Started " + ChatColor.GOLD + runningServices + ChatColor.YELLOW + " out of " + ChatColor.GOLD + totalServices + ChatColor.YELLOW + " Dungeon Maze services!");
+
+        // Dungeon Maze restarted, show a status message
+        sender.sendMessage(ChatColor.GREEN + "Dungeon Maze has been restarted successfully, took " + p.getTimeFormatted() + "!");
+        return true;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/executable/ServiceCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/executable/ServiceCommand.java
new file mode 100644
index 000000000..e65b6d3a6
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/executable/ServiceCommand.java
@@ -0,0 +1,73 @@
+package fr.xephi.authme.commands.dynamic.executable;
+
+import com.timvisee.dungeonmaze.Core;
+import com.timvisee.dungeonmaze.DungeonMaze;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.ExecutableCommand;
+import com.timvisee.dungeonmaze.service.Service;
+import com.timvisee.dungeonmaze.service.ServiceManager;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+
+import java.util.List;
+
+public class ServiceCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender           The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Print the status info header
+        sender.sendMessage(ChatColor.GOLD + "==========[ " + DungeonMaze.PLUGIN_NAME.toUpperCase() + " SERVICES ]==========");
+
+        // Get the service manager and make sure it's valid
+        ServiceManager serviceManager = Core.instance.getServiceManager();
+        if(serviceManager == null) {
+            sender.sendMessage(ChatColor.DARK_RED + "Error, failed to retrieve the services information!");
+            return true;
+        }
+
+        // Print the service count and the list of services
+        sender.sendMessage(ChatColor.GOLD + "Running Services: " + ChatColor.WHITE + serviceManager.getServiceCount(true) + ChatColor.GRAY + " / " + Core.instance.getServiceManager().getServiceCount());
+        printServices(sender);
+
+        // Return the result
+        return true;
+    }
+
+    /**
+     * Print all services.
+     *
+     * @param sender The command sender to print the services to.
+     */
+    public void printServices(CommandSender sender) {
+        // Get the service manager and make sure it's valid
+        ServiceManager serviceManager = Core.instance.getServiceManager();
+        if(serviceManager == null) {
+            sender.sendMessage(ChatColor.DARK_RED + "Error, failed to retrieve the services information!");
+            return;
+        }
+
+        // Get all the services
+        List<Service> services = serviceManager.getServices();
+
+        // Print the header
+        sender.sendMessage(ChatColor.GOLD + "Services:");
+
+        // Print all the services
+        for(Service service : services) {
+            // Check whether the service is initialized
+            if(service.isInit())
+                sender.sendMessage(ChatColor.WHITE + " " + service.getName() + " service " + ChatColor.GREEN + ChatColor.ITALIC + "(Loaded)");
+            else
+                sender.sendMessage(ChatColor.WHITE + " " + service.getName() + " service " + ChatColor.DARK_RED + ChatColor.ITALIC + "(Not loaded)");
+        }
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/executable/StatusCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/executable/StatusCommand.java
new file mode 100644
index 000000000..4a5cff31f
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/executable/StatusCommand.java
@@ -0,0 +1,180 @@
+package fr.xephi.authme.commands.dynamic.executable;
+
+import com.timvisee.dungeonmaze.Core;
+import com.timvisee.dungeonmaze.DungeonMaze;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.ExecutableCommand;
+import com.timvisee.dungeonmaze.permission.PermissionsManager;
+import com.timvisee.dungeonmaze.util.MinecraftUtils;
+import com.timvisee.dungeonmaze.util.SystemUtils;
+import com.timvisee.dungeonmaze.world.WorldManager;
+import com.timvisee.dungeonmaze.world.dungeon.chunk.grid.DungeonChunkGridManager;
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+import java.text.DateFormat;
+import java.text.DecimalFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+public class StatusCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender           The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Print the status info header
+        sender.sendMessage(ChatColor.GOLD + "==========[ " + DungeonMaze.PLUGIN_NAME.toUpperCase() + " STATUS ]==========");
+
+        // Get the world manager
+        WorldManager worldManager = Core.getWorldManager();
+
+        // Print the number of Dungeon Maze worlds
+        if(worldManager != null)
+            sender.sendMessage(ChatColor.GOLD + DungeonMaze.PLUGIN_NAME + " worlds: " + ChatColor.WHITE + worldManager.getDungeonMazeWorlds().size());
+        else
+            sender.sendMessage(ChatColor.GOLD + DungeonMaze.PLUGIN_NAME + " worlds: " + ChatColor.DARK_RED + ChatColor.ITALIC + "Unknown!");
+
+        // Print the Dungeon Maze player count
+        int playerCount = Bukkit.getOnlinePlayers().size();
+        int dungeonMazePlayerCount = 0;
+        if(worldManager != null) {
+            for(Player player : Bukkit.getOnlinePlayers())
+                if(worldManager.isDungeonMazeWorld(player.getWorld().getName()))
+                    dungeonMazePlayerCount++;
+
+            sender.sendMessage(ChatColor.GOLD + DungeonMaze.PLUGIN_NAME + " players: " + ChatColor.WHITE + dungeonMazePlayerCount + ChatColor.GRAY + " / " + playerCount);
+
+        } else
+            sender.sendMessage(ChatColor.GOLD + DungeonMaze.PLUGIN_NAME + " players: " + ChatColor.DARK_RED + ChatColor.ITALIC + "Unknown!");
+
+        // Get the permissions manager
+        PermissionsManager permissionsManager = Core.getPermissionsManager();
+
+        // Print the permissions manager status
+        if(permissionsManager != null) {
+            // Get the used permissions system
+            PermissionsManager.PermissionsSystemType type = permissionsManager.getUsedPermissionsSystemType();
+
+            if(!type.equals(PermissionsManager.PermissionsSystemType.NONE))
+                sender.sendMessage(ChatColor.GOLD + "Permissions System: " + ChatColor.GREEN + permissionsManager.getUsedPermissionsSystemType().getName());
+            else
+                sender.sendMessage(ChatColor.GOLD + "Permissions System: " + ChatColor.GRAY + ChatColor.ITALIC + permissionsManager.getUsedPermissionsSystemType().getName());
+        } else
+            sender.sendMessage(ChatColor.GOLD + "Permissions System: " + ChatColor.DARK_RED + ChatColor.ITALIC + "Unknown!");
+
+        // Get the dungeon chunk grid manager
+        DungeonChunkGridManager dungeonChunkGridManager = Core.getDungeonChunkGridManager();
+        if(dungeonChunkGridManager != null) {
+            int loadedChunks = dungeonChunkGridManager.getLoadedChunksCount();
+            int loadedGrids = dungeonChunkGridManager.getLoadedGridsCount();
+            sender.sendMessage(ChatColor.GOLD + "Loaded Dungeon Chunks: " + ChatColor.WHITE + loadedChunks + ChatColor.GRAY + " in " + ChatColor.WHITE + loadedGrids + ChatColor.GRAY + " grid" + (loadedGrids != 1 ? "s" : ""));
+        } else
+            sender.sendMessage(ChatColor.GOLD + "Loaded Dungeon Chunks: " + ChatColor.DARK_RED + ChatColor.ITALIC + "Unknown!");
+
+        // Print the service count
+        sender.sendMessage(ChatColor.GOLD + "Running Services: " + ChatColor.WHITE + Core.instance.getServiceManager().getServiceCount(true) + ChatColor.GRAY + " / " + Core.instance.getServiceManager().getServiceCount());
+
+        // Print the plugin runtime
+        printPluginRuntime(sender);
+
+        // Show the version status
+        sender.sendMessage(ChatColor.GOLD + "Version: " + ChatColor.WHITE + "Dungeon Maze v" + DungeonMaze.getVersionName() + ChatColor.GRAY + " (code: " + DungeonMaze.getVersionCode() + ")");
+
+        // Print the server status
+        printServerStatus(sender);
+
+        // Print the machine status
+        printMachineStatus(sender);
+        return true;
+    }
+
+    /**
+     * Print the plugin runtime.
+     *
+     * @param sender Command sender to print the runtime to.
+     */
+    public void printPluginRuntime(CommandSender sender) {
+        // Get the runtime
+        long runtime = new Date().getTime() - Core.getInitializationTime().getTime();
+
+        // Calculate the timings
+        int millis = (int) (runtime % 1000);
+        runtime/=1000;
+        int seconds = (int) (runtime % 60);
+        runtime/=60;
+        int minutes = (int) (runtime % 60);
+        runtime/=60;
+        int hours = (int) runtime;
+
+        // Create a double and triple digit formatter
+        DecimalFormat doubleDigit = new DecimalFormat("######00");
+        DecimalFormat tripleDigit = new DecimalFormat("000");
+
+        // Generate the timing string
+        StringBuilder runtimeStr = new StringBuilder(ChatColor.WHITE + doubleDigit.format(seconds) + ChatColor.GRAY + "." + ChatColor.WHITE + tripleDigit.format(millis));
+        String measurement = "Seconds";
+        if(minutes > 0 || hours > 0) {
+            runtimeStr.insert(0, ChatColor.WHITE + doubleDigit.format(minutes) + ChatColor.GRAY + ":");
+            measurement = "Minutes";
+            if(hours > 0) {
+                runtimeStr.insert(0, ChatColor.WHITE + doubleDigit.format(hours) + ChatColor.GRAY + ":");
+                measurement = "Hours";
+            }
+        }
+
+        // Print the runtime
+        sender.sendMessage(ChatColor.GOLD + "Runtime: " + ChatColor.WHITE + runtimeStr + " " + ChatColor.GRAY + measurement);
+    }
+
+    /**
+     * Print the server status.
+     *
+     * @param sender The command sender to print the status to.
+     */
+    public void printServerStatus(CommandSender sender) {
+        // Print the header
+        sender.sendMessage(ChatColor.GRAY + "" + ChatColor.ITALIC + "Server Status:");
+
+        // Print the server status
+        sender.sendMessage(ChatColor.GOLD + "Detected Minecraft Version: " + ChatColor.WHITE + MinecraftUtils.getMinecraftVersion());
+        sender.sendMessage(ChatColor.GOLD + "Detected Minecraft Server: " + ChatColor.WHITE + MinecraftUtils.getServerType().getName());
+        sender.sendMessage(ChatColor.GOLD + "Server Version: " + ChatColor.WHITE + Bukkit.getVersion());
+        sender.sendMessage(ChatColor.GOLD + "Bukkit Version: " + ChatColor.WHITE + Bukkit.getBukkitVersion());
+        sender.sendMessage(ChatColor.GOLD + "Running Plugins: " + ChatColor.WHITE + Bukkit.getPluginManager().getPlugins().length);
+
+        // Get the world manager
+        WorldManager worldManager = Core.getWorldManager();
+        if(worldManager != null)
+            sender.sendMessage(ChatColor.GOLD + "Loaded Worlds: " + ChatColor.WHITE + Bukkit.getWorlds().size() + ChatColor.GRAY + " / " + worldManager.getWorlds().size());
+
+        // Print the server time
+        DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+        sender.sendMessage(ChatColor.GOLD + "Server Time: " + ChatColor.WHITE + dateFormat.format(new Date()));
+    }
+
+    /**
+     * Print the machine status.
+     *
+     * @param sender The command sender to print the status to.
+     */
+    public void printMachineStatus(CommandSender sender) {
+        // Print the header
+        sender.sendMessage(ChatColor.GRAY + "" + ChatColor.ITALIC + "Machine Status:");
+
+        // Return the machine status
+        sender.sendMessage(ChatColor.GOLD + "OS Name: " + ChatColor.WHITE + System.getProperty("os.name"));
+        sender.sendMessage(ChatColor.GOLD + "OS Architecture: " + ChatColor.WHITE + SystemUtils.getSystemArchNumber() + "-bit" + ChatColor.GRAY + " (" + SystemUtils.getSystemArchFull() + ")");
+        sender.sendMessage(ChatColor.GOLD + "OS Version: " + ChatColor.WHITE + System.getProperty("os.version"));
+        sender.sendMessage(ChatColor.GOLD + "Java Version: " + ChatColor.WHITE + System.getProperty("java.version") + ChatColor.GRAY + " (" + System.getProperty("sun.arch.data.model") + "-bit)");
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/executable/TeleportCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/executable/TeleportCommand.java
new file mode 100644
index 000000000..4b3a6dc35
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/executable/TeleportCommand.java
@@ -0,0 +1,80 @@
+package fr.xephi.authme.commands.dynamic.executable;
+
+import com.timvisee.dungeonmaze.Core;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.ExecutableCommand;
+import com.timvisee.dungeonmaze.world.WorldManager;
+import org.bukkit.ChatColor;
+import org.bukkit.Location;
+import org.bukkit.World;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+public class TeleportCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender           The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Make sure the command is executed by an in-game player
+        if(!(sender instanceof Player)) {
+            sender.sendMessage(ChatColor.DARK_RED + "You need to be in-game to use this command!");
+            return true;
+        }
+
+        // Get the player and the world name to teleport to
+        Player player = (Player) sender;
+        String worldName = commandArguments.get(0);
+
+        // Get the world manager, and make sure it's valid
+        WorldManager worldManager = Core.getWorldManager();
+        boolean showWorldManagerError = false;
+        if(worldManager == null)
+            showWorldManagerError = true;
+        else if(!worldManager.isInit())
+            showWorldManagerError = true;
+        if(showWorldManagerError) {
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to teleport, world manager not available!");
+            return true;
+        }
+
+        // Make sure the world exists
+        if(!worldManager.isWorld(worldName)) {
+            sender.sendMessage(ChatColor.DARK_RED + worldName);
+            sender.sendMessage(ChatColor.DARK_RED + "This world doesn't exists!");
+            return true;
+        }
+
+        // Try to load the world
+        World world = worldManager.loadWorld(worldName);
+
+        // Make sure the world was loaded successfully
+        if(world == null) {
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to teleport, unable to load the world!");
+            return true;
+        }
+
+        // Get the spawn location to teleport the player to
+        Location spawn = world.getSpawnLocation();
+
+        // Force-set the location on Dungeon Maze worlds
+        // TODO: Fix this!
+        if(worldManager.isDungeonMazeWorld(worldName)) {
+            spawn.setX(4);
+            spawn.setY(68);
+            spawn.setZ(4);
+        }
+
+        // Teleport the player, show a status message and return true
+        player.teleport(spawn);
+        player.sendMessage(ChatColor.GREEN + "You have been teleported to " + ChatColor.GOLD + worldName + ChatColor.GREEN + "!");
+        return true;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/executable/UnloadWorldCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/executable/UnloadWorldCommand.java
new file mode 100644
index 000000000..944c486d1
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/executable/UnloadWorldCommand.java
@@ -0,0 +1,107 @@
+package fr.xephi.authme.commands.dynamic.executable;
+
+import com.timvisee.dungeonmaze.Core;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.ExecutableCommand;
+import com.timvisee.dungeonmaze.util.Profiler;
+import com.timvisee.dungeonmaze.world.WorldManager;
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.Location;
+import org.bukkit.World;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class UnloadWorldCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Get and trim the preferred world name
+        String worldName = commandArguments.get(0).trim();
+
+        // Profile the world unloading
+        Profiler p = new Profiler(true);
+
+        // Validate the world name
+        if(!WorldManager.isValidWorldName(worldName)) {
+            sender.sendMessage(ChatColor.DARK_RED + worldName);
+            sender.sendMessage(ChatColor.DARK_RED + "The world name contains invalid characters!");
+            return true;
+        }
+
+        // Get the world manager, and make sure it's valid
+        WorldManager worldManager = Core.getWorldManager();
+        boolean showWorldManagerError = false;
+        if(worldManager == null)
+            showWorldManagerError = true;
+        else if(!worldManager.isInit())
+            showWorldManagerError = true;
+        if(showWorldManagerError) {
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to unload the world, world manager not available!");
+            return true;
+        }
+
+        // Make sure the world exists
+        if(!worldManager.isWorld(worldName)) {
+            sender.sendMessage(ChatColor.DARK_RED + "The world " + ChatColor.GOLD + worldName + ChatColor.DARK_RED + " doesn't exist!");
+            return true;
+        }
+
+        // Make sure the world is loaded
+        if(!worldManager.isWorldLoaded(worldName)) {
+            sender.sendMessage(ChatColor.DARK_RED + "The world " + ChatColor.GOLD + worldName + ChatColor.DARK_RED + " isn't loaded!");
+            return true;
+        }
+
+        // Make sure the main world isn't unloaded
+        if(worldManager.isMainWorld(worldName)) {
+            sender.sendMessage(ChatColor.DARK_RED + "The main world can't be unloaded!");
+            return true;
+        }
+
+        // Get all players in the world
+        List<Player> players = Bukkit.getOnlinePlayers().stream().filter(player -> player.getWorld().getName().equals(worldName)).collect(Collectors.toList());
+        int playerCount = players.size();
+
+        // Teleport all players away
+        if(playerCount > 0) {
+            // Get the main world
+            World mainWorld = worldManager.getMainWorld();
+            Location mainWorldSpawn = mainWorld.getSpawnLocation();
+
+            // Teleport all players
+            for(Player player : players) {
+                // Teleport the player to the spawn of the main world
+                player.teleport(mainWorldSpawn);
+
+                // Show a message to the player
+                player.sendMessage(ChatColor.YELLOW + "The current world is being unloaded, you've been teleported!");
+            }
+
+            // Show a status message
+            sender.sendMessage(ChatColor.YELLOW + "Teleported " + ChatColor.GOLD + playerCount + ChatColor.YELLOW + " player" + (playerCount != 1 ? "s" : "") + " away!");
+        }
+
+        // Force the world to be loaded if it isn't already loaded
+        if(!worldManager.unloadWorld(worldName)) {
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to unload the world!");
+            return true;
+        }
+
+        // Show a status message, return the result
+        sender.sendMessage(ChatColor.GREEN + "The world " + ChatColor.GOLD + worldName + ChatColor.GREEN + " has been unloaded, took " + p.getTimeFormatted() + "!");
+        return true;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/executable/VersionCommand.java b/src/main/java/fr/xephi/authme/commands/dynamic/executable/VersionCommand.java
new file mode 100644
index 000000000..17658f604
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/executable/VersionCommand.java
@@ -0,0 +1,80 @@
+package fr.xephi.authme.commands.dynamic.executable;
+
+import com.timvisee.dungeonmaze.DungeonMaze;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.ExecutableCommand;
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+public class VersionCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender           The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // Show some version info
+        sender.sendMessage(ChatColor.GOLD + "==========[ " + DungeonMaze.PLUGIN_NAME.toUpperCase() + " ABOUT ]==========");
+        sender.sendMessage(ChatColor.GOLD + "Version: " + ChatColor.WHITE + DungeonMaze.PLUGIN_NAME + " v" + DungeonMaze.getVersionName() + ChatColor.GRAY + " (code: " + DungeonMaze.getVersionCode() + ")");
+        sender.sendMessage(ChatColor.GOLD + "Developers:");
+        printDeveloper(sender, "Tim Visee", "timvisee", "Lead Developer");
+        printDeveloper(sender, "Xephi", "xephi", "Code Contributor");
+        printDeveloper(sender, "sgdc3", "sgdc3", "Code Contributor");
+        printDeveloper(sender, "Metonymia", "Metonymia", "Design Contributor");
+        sender.sendMessage(ChatColor.GOLD + "Website: " + ChatColor.WHITE + "http://timvisee.com/projects/bukkit/dungeon-maze/");
+        sender.sendMessage(ChatColor.GOLD + "License: " + ChatColor.WHITE + "GNU GPL v3.0" + ChatColor.GRAY + ChatColor.ITALIC + " (See LICENSE file)");
+        sender.sendMessage(ChatColor.GOLD + "Copyright: " + ChatColor.WHITE + "Copyright (c) Tim Visee 2015. All rights reserved.");
+        return true;
+    }
+
+    /**
+     * Print a developer with proper styling.
+     *
+     * @param sender The command sender.
+     * @param name The display name of the developer.
+     * @param minecraftName The Minecraft username of the developer, if available.
+     * @param function The function of the developer.
+     */
+    @SuppressWarnings("StringConcatenationInsideStringBufferAppend")
+    private void printDeveloper(CommandSender sender, String name, String minecraftName, String function) {
+        // Print the name
+        StringBuilder msg = new StringBuilder();
+        msg.append(" " + ChatColor.WHITE);
+        msg.append(name);
+
+        // Append the Minecraft name, if available
+        if(minecraftName.length() != 0)
+            msg.append(ChatColor.GRAY + " // " + ChatColor.WHITE + minecraftName);
+        msg.append(ChatColor.GRAY + "" + ChatColor.ITALIC + " (" + function + ")");
+
+        // Show the online status
+        if(minecraftName.length() != 0)
+            if(isPlayerOnline(minecraftName))
+                msg.append(ChatColor.GREEN + "" + ChatColor.ITALIC + " (In-Game)");
+
+        // Print the message
+        sender.sendMessage(msg.toString());
+    }
+
+    /**
+     * Check whether a player is online.
+     *
+     * @param minecraftName The Minecraft player name.
+     *
+     * @return True if the player is online, false otherwise.
+     */
+    private boolean isPlayerOnline(String minecraftName) {
+        for(Player player : Bukkit.getOnlinePlayers())
+            if(player.getName().equalsIgnoreCase(minecraftName))
+                return true;
+        return false;
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/help/HelpPrinter.java b/src/main/java/fr/xephi/authme/commands/dynamic/help/HelpPrinter.java
new file mode 100644
index 000000000..28e685b88
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/help/HelpPrinter.java
@@ -0,0 +1,189 @@
+package fr.xephi.authme.commands.dynamic.help;
+
+import com.timvisee.dungeonmaze.Core;
+import com.timvisee.dungeonmaze.command.CommandArgumentDescription;
+import com.timvisee.dungeonmaze.command.CommandDescription;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.command.CommandPermissions;
+import com.timvisee.dungeonmaze.util.StringUtils;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+public class HelpPrinter {
+
+    /**
+     * Print the command help information.
+     *
+     * @param sender The command sender to print the help to.
+     * @param command The command to print.
+     * @param commandReference The command reference used.
+     */
+    public static void printCommand(CommandSender sender, CommandDescription command, CommandParts commandReference) {
+        // Print the proper command syntax
+        sender.sendMessage(ChatColor.GOLD + "Command: " + HelpSyntaxHelper.getCommandSyntax(command, commandReference, null, true));
+    }
+
+    /**
+     * Print the command help description information. This will print both the short, as the detailed description if available.
+     *
+     * @param sender The command sender to print the help to.
+     * @param command The command to print the description help for.
+     */
+    public static void printCommandDescription(CommandSender sender, CommandDescription command) {
+        // Print the regular description, if available
+        if(command.hasDescription())
+            sender.sendMessage(ChatColor.GOLD + "Short Description: " + ChatColor.WHITE + command.getDescription());
+
+        // Print the detailed description, if available
+        if(command.hasDetailedDescription()) {
+            sender.sendMessage(ChatColor.GOLD + "Detailed Description:");
+            sender.sendMessage(ChatColor.WHITE + " " + command.getDetailedDescription());
+        }
+    }
+
+    /**
+     * Print the command help arguments information if available.
+     *
+     * @param sender The command sender to print the help to.
+     * @param command The command to print the argument help for.
+     */
+    @SuppressWarnings("StringConcatenationInsideStringBufferAppend")
+    public static void printArguments(CommandSender sender, CommandDescription command) {
+        // Make sure there are any commands to print
+        if(!command.hasArguments() && command.getMaximumArguments() >= 0)
+            return;
+
+        // Print the header
+        sender.sendMessage(ChatColor.GOLD + "Arguments:");
+
+        // Print each argument
+        for(CommandArgumentDescription arg : command.getArguments()) {
+            // Create a string builder to build the syntax in
+            StringBuilder argString = new StringBuilder();
+            argString.append(" " + ChatColor.YELLOW + ChatColor.ITALIC + arg.getLabel() + " : " + ChatColor.WHITE + arg.getDescription());
+
+            // Suffix a note if the command is optional
+            if(arg.isOptional())
+                argString.append(ChatColor.GRAY + "" + ChatColor.ITALIC + " (Optional)");
+
+            // Print the syntax
+            sender.sendMessage(argString.toString());
+        }
+
+        // Show the unlimited arguments argument
+        if(command.getMaximumArguments() < 0)
+            sender.sendMessage(" " + ChatColor.YELLOW + ChatColor.ITALIC + "... : " + ChatColor.WHITE + "Any additional arguments." + ChatColor.GRAY + ChatColor.ITALIC + " (Optional)");
+    }
+
+    /**
+     * Print the command help permissions information if available.
+     *
+     * @param sender The command sender to print the help to.
+     * @param command The command to print the permissions help for.
+     */
+    public static void printPermissions(CommandSender sender, CommandDescription command) {
+        // Get the permissions and make sure it isn't null
+        CommandPermissions permissions = command.getCommandPermissions();
+        if(permissions == null)
+            return;
+
+        // Make sure any permission node is set
+        if(permissions.getPermissionNodeCount() <= 0)
+            return;
+
+        // Print the header
+        sender.sendMessage(ChatColor.GOLD + "Permissions:");
+
+        // Print each node
+        for(String node : permissions.getPermissionNodes()) {
+            boolean nodePermission = true;
+            if(sender instanceof Player)
+                nodePermission = Core.getPermissionsManager().hasPermission((Player) sender, node, false);
+            final String nodePermsString = ChatColor.GRAY + (nodePermission ? ChatColor.ITALIC + " (Permission!)" : ChatColor.ITALIC + " (No Permission!)");
+            sender.sendMessage(" " + ChatColor.YELLOW + ChatColor.ITALIC + node + nodePermsString);
+        }
+
+        // Print the default permission
+        switch(permissions.getDefaultPermission()) {
+        case ALLOWED:
+            sender.sendMessage(ChatColor.GOLD + " Default: " + ChatColor.GRAY + ChatColor.ITALIC + "Permission!");
+            break;
+
+        case OP_ONLY:
+            final String defaultPermsString = ChatColor.GRAY + (permissions.getDefaultPermissionCommandSender(sender) ? ChatColor.ITALIC + " (Permission!)" : ChatColor.ITALIC + " (No Permission!)");
+            sender.sendMessage(ChatColor.GOLD + " Default: " + ChatColor.YELLOW + ChatColor.ITALIC + "OP's Only!" + defaultPermsString);
+            break;
+
+        case NOT_ALLOWED:
+        default:
+            sender.sendMessage(ChatColor.GOLD + " Default: " + ChatColor.GRAY + ChatColor.ITALIC + "No Permission!");
+            break;
+        }
+
+        // Print the permission result
+        if(permissions.hasPermission(sender))
+            sender.sendMessage(ChatColor.GOLD + " Result: " + ChatColor.GREEN + ChatColor.ITALIC + "Permission!");
+        else
+            sender.sendMessage(ChatColor.GOLD + " Result: " + ChatColor.DARK_RED + ChatColor.ITALIC + "No Permission!");
+    }
+
+    /**
+     * Print the command help alternatives information if available.
+     *
+     * @param sender The command sender to print the help to.
+     * @param command The command used.
+     * @param commandReference The original command reference used for this command.
+     */
+    public static void printAlternatives(CommandSender sender, CommandDescription command, CommandParts commandReference) {
+        // Make sure there are any alternatives
+        if(command.getLabels().size() <= 1)
+            return;
+
+        // Print the header
+        sender.sendMessage(ChatColor.GOLD + "Alternatives:");
+
+        // Get the label used
+        final String usedLabel = commandReference.get(command.getParentCount());
+
+        // Create a list of alternatives
+        List<String> alternatives = new ArrayList<>();
+        for(String entry : command.getLabels()) {
+            // Exclude the proper argument
+            if(entry.equalsIgnoreCase(usedLabel))
+                continue;
+            alternatives.add(entry);
+        }
+
+        // Sort the alternatives
+        Collections.sort(alternatives, (o1, o2) -> Double.compare(StringUtils.getDifference(usedLabel, o1), StringUtils.getDifference(usedLabel, o2)));
+
+        // Print each alternative with proper syntax
+        for(String alternative : alternatives)
+            sender.sendMessage(" " + HelpSyntaxHelper.getCommandSyntax(command, commandReference, alternative, true));
+    }
+
+    /**
+     * Print the command help child's information if available.
+     *
+     * @param sender The command sender to print the help to.
+     * @param command The command to print the help for.
+     * @param commandReference The original command reference used for this command.
+     */
+    public static void printChildren(CommandSender sender, CommandDescription command, CommandParts commandReference) {
+        // Make sure there are child's
+        if(command.getChilds().size() <= 0)
+            return;
+
+        // Print the header
+        sender.sendMessage(ChatColor.GOLD + "Commands:");
+
+        // Loop through each child
+        for(CommandDescription child : command.getChilds())
+            sender.sendMessage(" " + HelpSyntaxHelper.getCommandSyntax(child, commandReference, null, false) + ChatColor.GRAY + ChatColor.ITALIC + " : " + child.getDescription());
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/help/HelpProvider.java b/src/main/java/fr/xephi/authme/commands/dynamic/help/HelpProvider.java
new file mode 100644
index 000000000..9fb066008
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/help/HelpProvider.java
@@ -0,0 +1,114 @@
+package fr.xephi.authme.commands.dynamic.help;
+
+import com.timvisee.dungeonmaze.Core;
+import com.timvisee.dungeonmaze.command.*;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+
+public class HelpProvider {
+
+    /**
+     * Show help for a specific command.
+     *
+     * @param sender The command sender the help needs to be shown to.
+     * @param reference The command reference to the help command.
+     * @param helpQuery The query to show help for.
+     */
+    public static void showHelp(CommandSender sender, CommandParts reference, CommandParts helpQuery) {
+        showHelp(sender, reference, helpQuery, true, true, true, true, true, true);
+    }
+
+    /**
+     * Show help for a specific command.
+     *
+     * @param sender The command sender the help needs to be shown to.
+     * @param reference The command reference to the help command.
+     * @param helpQuery The query to show help for.
+     * @param showCommand True to show the command.
+     * @param showDescription True to show the command description, both the short and detailed description.
+     * @param showArguments True to show the command argument help.
+     * @param showPermissions True to show the command permission help.
+     * @param showAlternatives True to show the command alternatives.
+     * @param showCommands True to show the child commands.
+     */
+    public static void showHelp(CommandSender sender, CommandParts reference, CommandParts helpQuery, boolean showCommand, boolean showDescription, boolean showArguments, boolean showPermissions, boolean showAlternatives, boolean showCommands) {
+        // Find the command for this help query, one with and one without a prefixed base command
+        FoundCommandResult result = Core.getCommandHandler().getCommandManager().findCommand(new CommandParts(helpQuery.getList()));
+        CommandParts commandReferenceOther = new CommandParts(reference.get(0), helpQuery.getList());
+        FoundCommandResult resultOther = Core.getCommandHandler().getCommandManager().findCommand(commandReferenceOther);
+        if(resultOther != null) {
+            if(result == null)
+                result = resultOther;
+
+            else if(result.getDifference() > resultOther.getDifference())
+                result = resultOther;
+        }
+
+        // Make sure a result was found
+        if(result == null) {
+            // Show a warning message
+            sender.sendMessage(ChatColor.DARK_RED + "" + ChatColor.ITALIC + helpQuery);
+            sender.sendMessage(ChatColor.DARK_RED + "Couldn't show any help information for this help query.");
+            return;
+        }
+
+        // Get the command description, and make sure it's valid
+        CommandDescription command = result.getCommandDescription();
+        if(command == null) {
+            // Show a warning message
+            sender.sendMessage(ChatColor.DARK_RED + "Failed to retrieve any help information!");
+            return;
+        }
+
+        // Get the proper command reference to use for the help page
+        CommandParts commandReference = command.getCommandReference(result.getQueryReference());
+
+        // Get the base command
+        String baseCommand = commandReference.get(0);
+
+        // Make sure the difference between the command reference and the actual command isn't too big
+        final double commandDifference = result.getDifference();
+        if(commandDifference > 0.20) {
+            // Show the unknown command warning
+            sender.sendMessage(ChatColor.DARK_RED + "No help found for '" + helpQuery + "'!");
+
+            // Get the suggested command
+            CommandParts suggestedCommandParts = new CommandParts(result.getCommandDescription().getCommandReference(commandReference).getRange(1));
+
+            // Show a command suggestion if available and the difference isn't too big
+            if(commandDifference < 0.75)
+                if(result.getCommandDescription() != null)
+                    sender.sendMessage(ChatColor.YELLOW + "Did you mean " + ChatColor.GOLD + "/" + baseCommand + " help " + suggestedCommandParts + ChatColor.YELLOW + "?");
+
+            // Show the help command
+            sender.sendMessage(ChatColor.YELLOW + "Use the command " + ChatColor.GOLD + "/" + baseCommand + " help" + ChatColor.YELLOW + " to view help.");
+            return;
+        }
+
+        // Show a message when the command handler is assuming a command
+        if(commandDifference > 0) {
+            // Get the suggested command
+            CommandParts suggestedCommandParts = new CommandParts(result.getCommandDescription().getCommandReference(commandReference).getRange(1));
+
+            // Show the suggested command
+            sender.sendMessage(ChatColor.DARK_RED + "No help found, assuming '" + ChatColor.GOLD + suggestedCommandParts + ChatColor.DARK_RED + "'!");
+        }
+
+        // Print the help header
+        sender.sendMessage(ChatColor.GOLD + "==========[ DUNGEON MAZE HELP ]==========");
+
+        // Print the command help information
+        if(showCommand)
+            HelpPrinter.printCommand(sender, command, commandReference);
+        if(showDescription)
+            HelpPrinter.printCommandDescription(sender, command);
+        if(showArguments)
+            HelpPrinter.printArguments(sender, command);
+        if(showPermissions)
+            HelpPrinter.printPermissions(sender, command);
+        if(showAlternatives)
+            HelpPrinter.printAlternatives(sender, command, commandReference);
+        if(showCommands)
+            HelpPrinter.printChildren(sender, command, commandReference);
+    }
+}
diff --git a/src/main/java/fr/xephi/authme/commands/dynamic/help/HelpSyntaxHelper.java b/src/main/java/fr/xephi/authme/commands/dynamic/help/HelpSyntaxHelper.java
new file mode 100644
index 000000000..5dd84fda3
--- /dev/null
+++ b/src/main/java/fr/xephi/authme/commands/dynamic/help/HelpSyntaxHelper.java
@@ -0,0 +1,60 @@
+package fr.xephi.authme.commands.dynamic.help;
+
+import com.timvisee.dungeonmaze.command.CommandArgumentDescription;
+import com.timvisee.dungeonmaze.command.CommandDescription;
+import com.timvisee.dungeonmaze.command.CommandParts;
+import com.timvisee.dungeonmaze.util.ListUtils;
+import org.bukkit.ChatColor;
+
+public class HelpSyntaxHelper {
+
+    /**
+     * Get the proper syntax for a command.
+     *
+     * @param commandDescription The command to get the syntax for.
+     * @param commandReference The reference of the command.
+     * @param alternativeLabel The alternative label to use for this command syntax.
+     * @param highlight True to highlight the important parts of this command.
+     *
+     * @return The command with proper syntax.
+     */
+    @SuppressWarnings("StringConcatenationInsideStringBufferAppend")
+    public static String getCommandSyntax(CommandDescription commandDescription, CommandParts commandReference, String alternativeLabel, boolean highlight) {
+        // Create a string builder to build the command
+        StringBuilder sb = new StringBuilder();
+
+        // Set the color and prefix a slash
+        sb.append(ChatColor.WHITE + "/");
+
+        // Get the help command reference, and the command label
+        CommandParts helpCommandReference = commandDescription.getCommandReference(commandReference);
+        final String parentCommand = (new CommandParts(helpCommandReference.getRange(0, helpCommandReference.getCount() - 1))).toString();
+        String commandLabel = helpCommandReference.get(helpCommandReference.getCount() - 1);
+
+        // Check whether the alternative label should be used
+        if(alternativeLabel != null)
+            if(alternativeLabel.trim().length() > 0)
+                commandLabel = alternativeLabel;
+
+        // Show the important bit of the command, highlight this part if required
+        sb.append(ListUtils.implode(parentCommand, (highlight ? ChatColor.YELLOW + "" + ChatColor.BOLD : "") + commandLabel, " "));
+        if(highlight)
+            sb.append(ChatColor.YELLOW);
+
+        // Add each command arguments
+        for(CommandArgumentDescription arg : commandDescription.getArguments()) {
+            // Add the argument as optional or non-optional argument
+            if(!arg.isOptional())
+                sb.append(ChatColor.ITALIC + " <" + arg.getLabel() + ">");
+            else
+                sb.append(ChatColor.ITALIC + " [" + arg.getLabel() + "]");
+        }
+
+        // Add some dots if the command allows unlimited arguments
+        if(commandDescription.getMaximumArguments() < 0)
+            sb.append(ChatColor.ITALIC + " ...");
+
+        // Return the build command syntax
+        return sb.toString();
+    }
+}