diff --git a/pom.xml b/pom.xml
index 860e1323..358796a7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -48,10 +48,15 @@
                                     <pattern>io.github.dre2n.commons</pattern>
                                     <shadedPattern>io.github.dre2n.dungeonsxl</shadedPattern>
                                 </relocation>
+                                <relocation>
+                                    <pattern>io.github.dre2n.caliburn</pattern>
+                                    <shadedPattern>io.github.dre2n.dungeonsxl.util.caliburn</shadedPattern>
+                                </relocation>
                             </relocations>
                             <artifactSet>
                                 <includes>
                                     <include>io.github.dre2n:commons</include>
+                                    <include>io.github.dre2n:caliburn</include>
                                 </includes>
                             </artifactSet>
                         </configuration>
@@ -78,6 +83,16 @@
             <artifactId>commons</artifactId>
             <version>1.0-SNAPSHOT</version>
         </dependency>
+        <dependency>
+            <groupId>io.github.dre2n</groupId>
+            <artifactId>caliburn</artifactId>
+            <version>0.1.4</version>
+        </dependency>
+        <dependency>
+            <groupId>io.github.dre2n</groupId>
+            <artifactId>itemsxl</artifactId>
+            <version>0.1.4</version>
+        </dependency>
         <dependency>
             <groupId>io.github.dre2n</groupId>
             <artifactId>commandsxl</artifactId>
@@ -86,7 +101,7 @@
         <dependency>
             <groupId>net.citizensnpcs</groupId>
             <artifactId>citizensapi</artifactId>
-            <version>2.0.17-SNAPSHOT</version>
+            <version>2.0.18-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
     </dependencies>
diff --git a/src/main/java/io/github/dre2n/dungeonsxl/DungeonsXL.java b/src/main/java/io/github/dre2n/dungeonsxl/DungeonsXL.java
index 9a1ebf64..eb33550c 100644
--- a/src/main/java/io/github/dre2n/dungeonsxl/DungeonsXL.java
+++ b/src/main/java/io/github/dre2n/dungeonsxl/DungeonsXL.java
@@ -16,6 +16,7 @@
  */
 package io.github.dre2n.dungeonsxl;
 
+import io.github.dre2n.caliburn.CaliburnAPI;
 import io.github.dre2n.commons.command.BRCommands;
 import io.github.dre2n.commons.compatibility.Internals;
 import io.github.dre2n.commons.config.MessageConfig;
@@ -53,6 +54,7 @@ import io.github.dre2n.dungeonsxl.task.WorldUnloadTask;
 import io.github.dre2n.dungeonsxl.trigger.TriggerTypes;
 import io.github.dre2n.dungeonsxl.world.EditWorld;
 import io.github.dre2n.dungeonsxl.world.GameWorld;
+import io.github.dre2n.itemsxl.ItemsXL;
 import java.io.File;
 import java.util.List;
 import java.util.concurrent.CopyOnWriteArrayList;
@@ -77,6 +79,8 @@ public class DungeonsXL extends BRPlugin {
     public static File MOBS;
     public static File SIGNS;
 
+    private CaliburnAPI caliburn;
+
     private GlobalData globalData;
     private MainConfig mainConfig;
     private MessageConfig messageConfig;
@@ -304,6 +308,24 @@ public class DungeonsXL extends BRPlugin {
         return instance;
     }
 
+    /**
+     * @return the loaded instance of CaliburnAPI
+     */
+    public CaliburnAPI getCaliburnAPI() {
+        return caliburn;
+    }
+
+    /**
+     * load / reload a new instance of CaliburnAPI
+     */
+    public void loadCaliburnAPI() {
+        if (manager.isPluginEnabled("ItemsXL")) {
+            this.caliburn = ItemsXL.getInstance().getAPI();
+        } else {
+            this.caliburn = new CaliburnAPI(this);
+        }
+    }
+
     /**
      * @return the loaded instance of GlobalData
      */
diff --git a/src/main/java/io/github/dre2n/dungeonsxl/config/PlayerData.java b/src/main/java/io/github/dre2n/dungeonsxl/config/PlayerData.java
index 30ef52bf..9d238163 100644
--- a/src/main/java/io/github/dre2n/dungeonsxl/config/PlayerData.java
+++ b/src/main/java/io/github/dre2n/dungeonsxl/config/PlayerData.java
@@ -23,8 +23,6 @@ import java.io.File;
 import java.io.IOException;
 import java.util.HashMap;
 import java.util.Map;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 
 /**
  * @author Daniel Saukel
diff --git a/src/main/java/io/github/dre2n/dungeonsxl/config/WorldConfig.java b/src/main/java/io/github/dre2n/dungeonsxl/config/WorldConfig.java
index 0f3c9eb9..aa19fe9c 100644
--- a/src/main/java/io/github/dre2n/dungeonsxl/config/WorldConfig.java
+++ b/src/main/java/io/github/dre2n/dungeonsxl/config/WorldConfig.java
@@ -16,6 +16,8 @@
  */
 package io.github.dre2n.dungeonsxl.config;
 
+import io.github.dre2n.commons.compatibility.CompatibilityHandler;
+import io.github.dre2n.commons.compatibility.Version;
 import io.github.dre2n.commons.util.EnumUtil;
 import io.github.dre2n.commons.util.NumberUtil;
 import io.github.dre2n.dungeonsxl.DungeonsXL;
@@ -25,6 +27,7 @@ import io.github.dre2n.dungeonsxl.requirement.FeeLevelRequirement;
 import io.github.dre2n.dungeonsxl.requirement.FeeMoneyRequirement;
 import io.github.dre2n.dungeonsxl.requirement.GroupSizeRequirement;
 import io.github.dre2n.dungeonsxl.requirement.Requirement;
+import io.github.dre2n.dungeonsxl.util.DeserialisazionUtil;
 import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
@@ -32,10 +35,10 @@ import java.util.List;
 import java.util.Set;
 import java.util.concurrent.CopyOnWriteArrayList;
 import org.bukkit.GameMode;
-import org.bukkit.Material;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.inventory.ItemStack;
 
 /**
  * @author Frank Baumann, Milan Albrecht, Daniel Saukel
@@ -43,6 +46,7 @@ import org.bukkit.configuration.file.YamlConfiguration;
 public class WorldConfig extends GameRules {
 
     DungeonsXL plugin = DungeonsXL.getInstance();
+    CompatibilityHandler compat = CompatibilityHandler.getInstance();
 
     private File file;
 
@@ -79,13 +83,10 @@ public class WorldConfig extends GameRules {
         /* Secure Objects */
         if (configFile.contains("secureObjects")) {
             List<String> secureObjectList = configFile.getStringList("secureObjects");
-            for (String id : secureObjectList) {
-                if (Material.getMaterial(NumberUtil.parseInt(id)) != null) {
-                    secureObjects.add(Material.getMaterial(NumberUtil.parseInt(id)));
-
-                } else if (Material.getMaterial(id) != null) {
-                    secureObjects.add(Material.getMaterial(id));
-                }
+            if (Version.andHigher(Version.MC1_9).contains(compat.getVersion())) {
+                secureObjects = plugin.getCaliburnAPI().getItems().deserializeStackList(secureObjectList);
+            } else {
+                secureObjects = DeserialisazionUtil.deserializeStackList(secureObjectList);
             }
         }
 
@@ -244,14 +245,13 @@ public class WorldConfig extends GameRules {
             configFile.set("message." + msgs, this.msgs.get(msgs));
         }
 
-        // Secure Objects
-        CopyOnWriteArrayList<Integer> secureObjectsids = new CopyOnWriteArrayList<>();
+        List<String> secureObjectIds = new ArrayList<>();
 
-        for (Material mat : secureObjects) {
-            secureObjectsids.add(mat.getId());
+        for (ItemStack item : secureObjects) {
+            secureObjectIds.add(plugin.getCaliburnAPI().getItems().getCustomItemId(item));
         }
 
-        configFile.set("secureObjects", secureObjectsids);
+        configFile.set("secureObjects", secureObjectIds);
 
         // Invited Players
         configFile.set("invitedPlayers", invitedPlayers);
diff --git a/src/main/java/io/github/dre2n/dungeonsxl/game/GameRules.java b/src/main/java/io/github/dre2n/dungeonsxl/game/GameRules.java
index b79c2917..686bf150 100644
--- a/src/main/java/io/github/dre2n/dungeonsxl/game/GameRules.java
+++ b/src/main/java/io/github/dre2n/dungeonsxl/game/GameRules.java
@@ -16,6 +16,7 @@
  */
 package io.github.dre2n.dungeonsxl.game;
 
+import io.github.dre2n.caliburn.item.UniversalItem;
 import io.github.dre2n.dungeonsxl.DungeonsXL;
 import io.github.dre2n.dungeonsxl.requirement.Requirement;
 import io.github.dre2n.dungeonsxl.reward.Reward;
@@ -24,7 +25,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import org.bukkit.GameMode;
-import org.bukkit.Material;
+import org.bukkit.inventory.ItemStack;
 
 /**
  * @author Daniel Saukel
@@ -109,7 +110,7 @@ public class GameRules {
 
     /* Misc */
     protected Map<Integer, String> msgs;
-    protected List<Material> secureObjects;
+    protected List<ItemStack> secureObjects;
 
     /* Getters and setters */
     // keepInventory
@@ -315,7 +316,7 @@ public class GameRules {
     /**
      * @return the objects to get passed to another player of the group when this player leaves
      */
-    public List<Material> getSecureObjects() {
+    public List<ItemStack> getSecureObjects() {
         return secureObjects;
     }
 
diff --git a/src/main/java/io/github/dre2n/dungeonsxl/listener/PlayerListener.java b/src/main/java/io/github/dre2n/dungeonsxl/listener/PlayerListener.java
index 8683ec54..e01b5965 100644
--- a/src/main/java/io/github/dre2n/dungeonsxl/listener/PlayerListener.java
+++ b/src/main/java/io/github/dre2n/dungeonsxl/listener/PlayerListener.java
@@ -350,8 +350,8 @@ public class PlayerListener implements Listener {
 
         Game game = Game.getByWorld(gamePlayer.getWorld());
 
-        for (Material material : game.getRules().getSecureObjects()) {
-            if (material == event.getItemDrop().getItemStack().getType()) {
+        for (ItemStack item : game.getRules().getSecureObjects()) {
+            if (event.getItemDrop().getItemStack().isSimilar(item)) {
                 event.setCancelled(true);
                 MessageUtil.sendMessage(player, DMessages.ERROR_DROP.getMessage());
                 return;
diff --git a/src/main/java/io/github/dre2n/dungeonsxl/listener/WorldListener.java b/src/main/java/io/github/dre2n/dungeonsxl/listener/WorldListener.java
index 8804bfef..e902336e 100644
--- a/src/main/java/io/github/dre2n/dungeonsxl/listener/WorldListener.java
+++ b/src/main/java/io/github/dre2n/dungeonsxl/listener/WorldListener.java
@@ -18,7 +18,6 @@ package io.github.dre2n.dungeonsxl.listener;
 
 import io.github.dre2n.dungeonsxl.world.EditWorld;
 import io.github.dre2n.dungeonsxl.world.GameWorld;
-import org.bukkit.World;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
diff --git a/src/main/java/io/github/dre2n/dungeonsxl/mob/DMobType.java b/src/main/java/io/github/dre2n/dungeonsxl/mob/DMobType.java
index 3cc21341..3b4a837d 100644
--- a/src/main/java/io/github/dre2n/dungeonsxl/mob/DMobType.java
+++ b/src/main/java/io/github/dre2n/dungeonsxl/mob/DMobType.java
@@ -19,7 +19,6 @@ package io.github.dre2n.dungeonsxl.mob;
 import io.github.dre2n.commons.util.EnumUtil;
 import io.github.dre2n.commons.util.NumberUtil;
 import io.github.dre2n.commons.util.messageutil.MessageUtil;
-import io.github.dre2n.dungeonsxl.DungeonsXL;
 import io.github.dre2n.dungeonsxl.config.DMessages;
 import io.github.dre2n.dungeonsxl.world.GameWorld;
 import java.io.File;
@@ -46,8 +45,6 @@ import org.bukkit.inventory.meta.ItemMeta;
  */
 public class DMobType {
 
-    static DungeonsXL plugin = DungeonsXL.getInstance();
-
     private String name;
     private EntityType type;
 
@@ -75,7 +72,7 @@ public class DMobType {
 
     /**
      * @param name
-     * the name of the Announcer
+     * the name of the DMobType
      * @param config
      * the config that stores the information
      */
@@ -178,7 +175,7 @@ public class DMobType {
 
                 /* Add Item to the drops map */
                 item.setItemMeta(itemMeta);
-                getDrops().put(item, chance);
+                drops.put(item, chance);
             }
         }
     }
diff --git a/src/main/java/io/github/dre2n/dungeonsxl/player/DClass.java b/src/main/java/io/github/dre2n/dungeonsxl/player/DClass.java
index 176671ec..aec84025 100644
--- a/src/main/java/io/github/dre2n/dungeonsxl/player/DClass.java
+++ b/src/main/java/io/github/dre2n/dungeonsxl/player/DClass.java
@@ -16,7 +16,10 @@
  */
 package io.github.dre2n.dungeonsxl.player;
 
-import io.github.dre2n.dungeonsxl.util.ItemUtil;
+import io.github.dre2n.commons.compatibility.CompatibilityHandler;
+import io.github.dre2n.commons.compatibility.Version;
+import io.github.dre2n.dungeonsxl.DungeonsXL;
+import io.github.dre2n.dungeonsxl.util.DeserialisazionUtil;
 import java.io.File;
 import java.util.ArrayList;
 import java.util.List;
@@ -29,6 +32,9 @@ import org.bukkit.inventory.ItemStack;
  */
 public class DClass {
 
+    DungeonsXL plugin = DungeonsXL.getInstance();
+    CompatibilityHandler compat = CompatibilityHandler.getInstance();
+
     private String name;
 
     private List<ItemStack> items = new ArrayList<>();
@@ -42,7 +48,13 @@ public class DClass {
         this.name = name;
 
         if (config.contains("items")) {
-            items = ItemUtil.fromConfig(config);
+            List<String> itemList = config.getStringList("items");
+
+            if (Version.andHigher(Version.MC1_9).contains(compat.getVersion())) {
+                items = plugin.getCaliburnAPI().getItems().deserializeStackList(itemList);
+            } else {
+                items = DeserialisazionUtil.deserializeStackList(itemList);
+            }
         }
 
         if (config.contains("dog")) {
diff --git a/src/main/java/io/github/dre2n/dungeonsxl/sign/ClassesSign.java b/src/main/java/io/github/dre2n/dungeonsxl/sign/ClassesSign.java
index dbd9c3d3..b8f886d8 100644
--- a/src/main/java/io/github/dre2n/dungeonsxl/sign/ClassesSign.java
+++ b/src/main/java/io/github/dre2n/dungeonsxl/sign/ClassesSign.java
@@ -19,7 +19,6 @@ package io.github.dre2n.dungeonsxl.sign;
 import io.github.dre2n.dungeonsxl.player.DClass;
 import io.github.dre2n.dungeonsxl.world.GameWorld;
 import org.bukkit.ChatColor;
-import org.bukkit.Material;
 import org.bukkit.block.Sign;
 
 /**
diff --git a/src/main/java/io/github/dre2n/dungeonsxl/util/ItemUtil.java b/src/main/java/io/github/dre2n/dungeonsxl/util/DeserialisazionUtil.java
similarity index 86%
rename from src/main/java/io/github/dre2n/dungeonsxl/util/ItemUtil.java
rename to src/main/java/io/github/dre2n/dungeonsxl/util/DeserialisazionUtil.java
index 8e7bb4d2..95215d00 100644
--- a/src/main/java/io/github/dre2n/dungeonsxl/util/ItemUtil.java
+++ b/src/main/java/io/github/dre2n/dungeonsxl/util/DeserialisazionUtil.java
@@ -17,21 +17,21 @@
 package io.github.dre2n.dungeonsxl.util;
 
 import io.github.dre2n.commons.util.NumberUtil;
+import java.util.ArrayList;
 import java.util.List;
-import java.util.concurrent.CopyOnWriteArrayList;
-import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.enchantments.Enchantment;
 import org.bukkit.inventory.ItemStack;
 
 /**
+ * Deprecated deserialization methods for compatibility with 1.7.8-1.8.x
+ *
  * @author Frank Baumann, Daniel Saukel
  */
 @Deprecated
-public class ItemUtil {
+public class DeserialisazionUtil {
 
-    public static List<ItemStack> fromConfig(ConfigurationSection configSectionClasses) {
-        List<String> items = configSectionClasses.getStringList("items");
-        CopyOnWriteArrayList<ItemStack> itemStacks = new CopyOnWriteArrayList<>();
+    public static List<ItemStack> deserializeStackList(List<String> items) {
+        List<ItemStack> itemStacks = new ArrayList<>();
 
         for (String item : items) {
             String[] itemSplit = item.split(",");
diff --git a/src/main/java/io/github/dre2n/dungeonsxl/world/GameWorld.java b/src/main/java/io/github/dre2n/dungeonsxl/world/GameWorld.java
index 0906da81..a5d9b0f1 100644
--- a/src/main/java/io/github/dre2n/dungeonsxl/world/GameWorld.java
+++ b/src/main/java/io/github/dre2n/dungeonsxl/world/GameWorld.java
@@ -44,7 +44,6 @@ import java.util.concurrent.CopyOnWriteArrayList;
 import org.bukkit.Bukkit;
 import org.bukkit.Chunk;
 import org.bukkit.Location;
-import org.bukkit.Material;
 import org.bukkit.World;
 import org.bukkit.WorldCreator;
 import org.bukkit.block.Block;
@@ -53,6 +52,7 @@ import org.bukkit.entity.Entity;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Spider;
+import org.bukkit.inventory.ItemStack;
 
 /**
  * @author Frank Baumann, Milan Albrecht, Daniel Saukel
@@ -71,7 +71,7 @@ public class GameWorld {
     private Location locStart;
     private boolean isPlaying = false;
     private int id;
-    private List<Material> secureObjects = new ArrayList<>();
+    private List<ItemStack> secureObjects = new ArrayList<>();
     private CopyOnWriteArrayList<Chunk> loadedChunks = new CopyOnWriteArrayList<>();
 
     private CopyOnWriteArrayList<Sign> signClass = new CopyOnWriteArrayList<>();
@@ -244,7 +244,7 @@ public class GameWorld {
     /**
      * @return the secureObjects
      */
-    public List<Material> getSecureObjects() {
+    public List<ItemStack> getSecureObjects() {
         return secureObjects;
     }
 
@@ -252,7 +252,7 @@ public class GameWorld {
      * @param secureObjects
      * the secureObjects to set
      */
-    public void setSecureObjects(List<Material> secureObjects) {
+    public void setSecureObjects(List<ItemStack> secureObjects) {
         this.secureObjects = secureObjects;
     }
 
@@ -539,10 +539,7 @@ public class GameWorld {
     /* Statics */
     public static GameWorld getByWorld(World world) {
         for (GameWorld gameWorld : plugin.getGameWorlds()) {
-            if (gameWorld.getWorld() == null) {
-                continue;
-
-            } else if (gameWorld.getWorld().equals(world)) {
+            if (gameWorld.getWorld() != null && gameWorld.getWorld().equals(world)) {
                 return gameWorld;
             }
         }
diff --git a/src/main/resources/plugin.yml b/src/main/resources/plugin.yml
index 04f8c93f..83bb3d74 100644
--- a/src/main/resources/plugin.yml
+++ b/src/main/resources/plugin.yml
@@ -4,7 +4,7 @@ version: ${project.version}
 authors: [Frank Baumann, Milan Albrecht, Tobias Schmitz, Daniel Saukel]
 description: ${project.description}
 website: ${project.url}
-softdepend: [BlueRoseCommons, CommandsXL, Vault, CustomMobs, InsaneMobs, MythicMobs]
+softdepend: [BlueRoseCommons, CommandsXL, ItemsXL, Vault, CustomMobs, InsaneMobs, MythicMobs]
 commands:
   dungeonsxl:
     description: Reference command for DungeonsXL.