diff --git a/src/com/onarandombox/MultiverseCore/MVWorld.java b/src/com/onarandombox/MultiverseCore/MVWorld.java
index cadf4df7..742af067 100644
--- a/src/com/onarandombox/MultiverseCore/MVWorld.java
+++ b/src/com/onarandombox/MultiverseCore/MVWorld.java
@@ -15,7 +15,7 @@ public class MVWorld {
     private Configuration config; // Hold the Configuration File.
     
     public World world; // The World Instance.
-    public Environment environment; // Hold the Environment type EG Environment.NETHER / Environment.NORMAL
+    public String environment; // Hold the Environment type EG Environment.NETHER / Environment.NORMAL
     public Long seed;
     
     public String name; // The Worlds Name, EG its folder name.
@@ -44,7 +44,7 @@ public class MVWorld {
         
         this.world = world;
         this.name = world.getName();
-        this.environment = world.getEnvironment();
+        this.environment = env;
         this.seed = seed;
         
         initLists();
diff --git a/src/com/onarandombox/MultiverseCore/MultiverseCore.java b/src/com/onarandombox/MultiverseCore/MultiverseCore.java
index 1bac3290..f1f0e7db 100644
--- a/src/com/onarandombox/MultiverseCore/MultiverseCore.java
+++ b/src/com/onarandombox/MultiverseCore/MultiverseCore.java
@@ -3,6 +3,7 @@ package com.onarandombox.MultiverseCore;
 import java.io.File;
 import java.util.ArrayList;
 import java.util.Calendar;
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -97,7 +98,7 @@ public class MultiverseCore extends JavaPlugin {
     public HashMap<String, MVWorld> worlds = new HashMap<String, MVWorld>();
     
     // HashMap to contain all custom generators. Plugins will have to register!
-    public HashMap<String, ChunkGenerator> worldGenerators = new HashMap<String, ChunkGenerator>();
+    private HashMap<String, ChunkGenerator> worldGenerators = new HashMap<String, ChunkGenerator>();
     
     // HashMap to contain information relating to the Players.
     public HashMap<String, MVPlayerSession> playerSessions = new HashMap<String, MVPlayerSession>();
@@ -307,6 +308,7 @@ public class MultiverseCore extends JavaPlugin {
         commandManager.addCommand(new InfoCommand(this));
         commandManager.addCommand(new ReloadCommand(this));
         commandManager.addCommand(new ModifyCommand(this));
+        commandManager.addCommand(new EnvironmentCommand(this));
     }
     
     /**
@@ -652,19 +654,22 @@ public class MultiverseCore extends JavaPlugin {
         try {
             return Environment.valueOf(env);
         } catch (IllegalArgumentException e) {
-            // Sender will be null on loadWorlds
             return null;
-            // TODO: Show the player the mvenvironments command.
         }
     }
     
-    public ChunkGenerator getChunkGenFromEnv(String env) {
+    private ChunkGenerator getChunkGenFromEnv(String env) {
         if (worldGenerators.containsKey(env)) {
             return worldGenerators.get(env);
         }
         return null;
     }
-    
+    /**
+     * Other plugin devs can use this to tell MultiVerse about other environment types
+     * @param name
+     * @param generator
+     * @return
+     */
     public boolean registerEnvType(String name, ChunkGenerator generator) {
         if (this.worldGenerators.containsKey(name)) {
             return false;
@@ -725,4 +730,12 @@ public class MultiverseCore extends JavaPlugin {
             queuedCommands.remove(c);
         }
     }
+    
+    public Set<String> getWorldGenerators() {
+        return this.worldGenerators.keySet();
+    }
+    
+    public Collection<MVWorld> getWorlds() {
+        return this.worlds.values();
+    }
 }
diff --git a/src/com/onarandombox/MultiverseCore/command/commands/CreateCommand.java b/src/com/onarandombox/MultiverseCore/command/commands/CreateCommand.java
index f1ce5b1e..3844542d 100644
--- a/src/com/onarandombox/MultiverseCore/command/commands/CreateCommand.java
+++ b/src/com/onarandombox/MultiverseCore/command/commands/CreateCommand.java
@@ -3,7 +3,6 @@ package com.onarandombox.MultiverseCore.command.commands;
 import java.io.File;
 
 import org.bukkit.ChatColor;
-import org.bukkit.World.Environment;
 import org.bukkit.command.CommandSender;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
@@ -48,7 +47,8 @@ public class CreateCommand extends BaseCommand {
         } else {
             sender.sendMessage(ChatColor.RED + "FAILED.");
             if(plugin.getEnvFromString(env) == null) {
-                sender.sendMessage("I should show the envs I know here...");
+                sender.sendMessage("That world type did not exist.");
+                sender.sendMessage("For a list of available world types, type: /mvenv");
             }
         }
         return;
diff --git a/src/com/onarandombox/MultiverseCore/command/commands/EnvironmentCommand.java b/src/com/onarandombox/MultiverseCore/command/commands/EnvironmentCommand.java
index 55c7f75a..4abcfee7 100644
--- a/src/com/onarandombox/MultiverseCore/command/commands/EnvironmentCommand.java
+++ b/src/com/onarandombox/MultiverseCore/command/commands/EnvironmentCommand.java
@@ -7,14 +7,14 @@ import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.command.BaseCommand;
 
 public class EnvironmentCommand extends BaseCommand{
-
+    
     public EnvironmentCommand(MultiverseCore plugin) {
         super(plugin);
         this.name = "List Environments";
         this.description = "Lists valid known environments";
         this.usage = "/mvenv";
-        this.minArgs = 2;
-        this.maxArgs = 2;
+        this.minArgs = 0;
+        this.maxArgs = 0;
         this.identifiers.add("mvenv");
         this.permission = "multiverse.world.list.environments";
         this.requiresOp = false;
@@ -22,10 +22,20 @@ public class EnvironmentCommand extends BaseCommand{
 
     @Override
     public void execute(CommandSender sender, String[] args) {
+        this.showEnvironments(sender);
+    }
+    
+    public void showEnvironments(CommandSender sender) {
         sender.sendMessage(ChatColor.YELLOW + "Valid Environments are:");
         sender.sendMessage(ChatColor.GREEN + "NORMAL");
         sender.sendMessage(ChatColor.RED + "NETHER");
         sender.sendMessage(ChatColor.AQUA + "SKYLANDS");
+        if(plugin.getWorldGenerators().size() > 0) {
+            sender.sendMessage(ChatColor.DARK_AQUA + "CUSTOM WORLD TYPES:");
+        }
+        for(String s : plugin.getWorldGenerators()) {
+            sender.sendMessage(ChatColor.GOLD + s);
+        }
     }
     
 }
diff --git a/src/com/onarandombox/MultiverseCore/command/commands/ImportCommand.java b/src/com/onarandombox/MultiverseCore/command/commands/ImportCommand.java
index f6a85a7f..c45238cf 100644
--- a/src/com/onarandombox/MultiverseCore/command/commands/ImportCommand.java
+++ b/src/com/onarandombox/MultiverseCore/command/commands/ImportCommand.java
@@ -3,7 +3,6 @@ package com.onarandombox.MultiverseCore.command.commands;
 import java.io.File;
 
 import org.bukkit.ChatColor;
-import org.bukkit.World.Environment;
 import org.bukkit.command.CommandSender;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
@@ -40,7 +39,8 @@ public class ImportCommand extends BaseCommand {
             return;
         } else if(env == null) {
             sender.sendMessage(ChatColor.RED + "FAILED.");
-            sender.sendMessage("I should show valid envs here...");
+            sender.sendMessage("That world type did not exist.");
+            sender.sendMessage("For a list of available world types, type: /mvenv");
         } else {
             sender.sendMessage(ChatColor.RED + "FAILED.");
             sender.sendMessage("That world folder does not exist...");
diff --git a/src/com/onarandombox/MultiverseCore/command/commands/ListCommand.java b/src/com/onarandombox/MultiverseCore/command/commands/ListCommand.java
index 25c20b2f..2017d04f 100644
--- a/src/com/onarandombox/MultiverseCore/command/commands/ListCommand.java
+++ b/src/com/onarandombox/MultiverseCore/command/commands/ListCommand.java
@@ -25,6 +25,7 @@ public class ListCommand extends BaseCommand {
     
     @Override
     public void execute(CommandSender sender, String[] args) {
+        //TODO: Show custom worldtypes
         Player p = null;
         if (sender instanceof Player) {
             p = (Player) sender;
diff --git a/src/com/onarandombox/MultiverseCore/command/commands/MVPurge.java b/src/com/onarandombox/MultiverseCore/command/commands/MVPurge.java
index 46d4e6df..1ae445f6 100644
--- a/src/com/onarandombox/MultiverseCore/command/commands/MVPurge.java
+++ b/src/com/onarandombox/MultiverseCore/command/commands/MVPurge.java
@@ -6,7 +6,6 @@ import java.util.List;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 
-import com.onarandombox.MultiverseCore.MVCommandHandler;
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.command.BaseCommand;
 import com.onarandombox.utils.PurgeWorlds;
diff --git a/src/com/onarandombox/MultiverseCore/command/commands/ModifyCommand.java b/src/com/onarandombox/MultiverseCore/command/commands/ModifyCommand.java
index 458530bc..4438c070 100644
--- a/src/com/onarandombox/MultiverseCore/command/commands/ModifyCommand.java
+++ b/src/com/onarandombox/MultiverseCore/command/commands/ModifyCommand.java
@@ -2,7 +2,6 @@ package com.onarandombox.MultiverseCore.command.commands;
 
 import org.bukkit.command.CommandSender;
 
-import com.onarandombox.MultiverseCore.MVCommandHandler;
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.command.BaseCommand;
 
diff --git a/src/com/onarandombox/MultiverseCore/command/commands/WhoCommand.java b/src/com/onarandombox/MultiverseCore/command/commands/WhoCommand.java
index 0d7f6831..cbd066b0 100644
--- a/src/com/onarandombox/MultiverseCore/command/commands/WhoCommand.java
+++ b/src/com/onarandombox/MultiverseCore/command/commands/WhoCommand.java
@@ -9,6 +9,7 @@ import org.bukkit.World.Environment;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 
+import com.onarandombox.MultiverseCore.MVWorld;
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.command.BaseCommand;
 
@@ -34,36 +35,42 @@ public class WhoCommand extends BaseCommand {
             p = (Player) sender;
         }
         
-        List<World> worlds = new ArrayList<World>();
+        List<MVWorld> worlds = new ArrayList<MVWorld>();
         
         if (args.length > 0) {
-            World world = plugin.getServer().getWorld(args[0].toString());
-            if (world != null) {
-                worlds.add(world);
+            if (plugin.worlds.containsKey(args[0])) {
+                worlds.add(plugin.worlds.get(args[0]));
             } else {
                 sender.sendMessage(ChatColor.RED + "World does not exist");
                 return;
             }
         } else {
-            worlds = plugin.getServer().getWorlds();
+            worlds = new ArrayList<MVWorld>(plugin.getWorlds());
         }
         
-        for (World world : worlds) {
-            if (!(plugin.worlds.containsKey(world.getName()))) {
+        for (MVWorld world : worlds) {
+            if (!(plugin.worlds.containsKey(world.name))) {
                 continue;
             }
-            if (p != null && (!plugin.ph.canEnterWorld(p, world))) {
+            
+            World w = plugin.getServer().getWorld(world.name);
+            if (p != null && (!plugin.ph.canEnterWorld(p, w))) {
                 continue;
             }
-            ChatColor color = ChatColor.BLUE;
-            if (world.getEnvironment() == Environment.NETHER) {
+            
+            ChatColor color = ChatColor.GOLD;
+            Environment env = plugin.getEnvFromString(world.environment);
+            if(plugin.getEnvFromString(world.environment) == null) {
+                color = ChatColor.GOLD;
+            }
+            else if (env == Environment.NETHER) {
                 color = ChatColor.RED;
-            } else if (world.getEnvironment() == Environment.NORMAL) {
+            } else if (env == Environment.NORMAL) {
                 color = ChatColor.GREEN;
-            } else if (world.getEnvironment() == Environment.SKYLANDS) {
+            } else if (env == Environment.SKYLANDS) {
                 color = ChatColor.AQUA;
             }
-            List<Player> players = world.getPlayers();
+            List<Player> players = w.getPlayers();
             
             String result = "";
             if (players.size() <= 0) {
@@ -73,7 +80,7 @@ public class WhoCommand extends BaseCommand {
                     result += player.getName() + " ";
                 }
             }
-            sender.sendMessage(color + world.getName() + ChatColor.WHITE + " - " + result);
+            sender.sendMessage(color + world.name + ChatColor.WHITE + " - " + result);
         }
         return;
     }
diff --git a/src/plugin.yml b/src/plugin.yml
index 7aa70fd7..002957fc 100644
--- a/src/plugin.yml
+++ b/src/plugin.yml
@@ -83,3 +83,7 @@ commands:
     description: Gets world info.
     usage: |
             /<command> [world]
+  mvenv:
+    description: Tells the user all possible world types.
+    usage: |
+            /<command>