diff --git a/src/Buildin/EcsDefaultWorldProvider.cs b/src/Buildin/EcsDefaultWorldProvider.cs
index dcd6b34..4892e3f 100644
--- a/src/Buildin/EcsDefaultWorldProvider.cs
+++ b/src/Buildin/EcsDefaultWorldProvider.cs
@@ -3,5 +3,8 @@
 namespace DCFApixels.DragonECS
 {
     [CreateAssetMenu(fileName = nameof(EcsDefaultWorldProvider), menuName = EcsConsts.FRAMEWORK_NAME + "/WorldProviders/" + nameof(EcsDefaultWorldProvider), order = 1)]
-    public class EcsDefaultWorldProvider : EcsWorldProvider<EcsDefaultWorld> { }
+    public class EcsDefaultWorldProvider : EcsWorldProvider<EcsDefaultWorld>
+    {
+        protected override EcsDefaultWorld BuildWorld(ConfigContainer configs) { return new EcsDefaultWorld(configs, WorldID); }
+    }
 }
diff --git a/src/Buildin/EcsDefaultWorldSingletonProvider.cs b/src/Buildin/EcsDefaultWorldSingletonProvider.cs
index cccf86b..fbd0b25 100644
--- a/src/Buildin/EcsDefaultWorldSingletonProvider.cs
+++ b/src/Buildin/EcsDefaultWorldSingletonProvider.cs
@@ -14,5 +14,6 @@
                 return _instance;
             }
         }
+        protected override EcsDefaultWorld BuildWorld(ConfigContainer configs) { return new EcsDefaultWorld(configs, WorldID); }
     }
 }
diff --git a/src/Buildin/EcsWorldProvider.cs b/src/Buildin/EcsWorldProvider.cs
index bf6d06f..45e2735 100644
--- a/src/Buildin/EcsWorldProvider.cs
+++ b/src/Buildin/EcsWorldProvider.cs
@@ -3,5 +3,8 @@
 namespace DCFApixels.DragonECS
 {
     [CreateAssetMenu(fileName = nameof(EcsWorldProvider), menuName = EcsConsts.FRAMEWORK_NAME + "/WorldProviders/" + nameof(EcsWorldProvider), order = 1)]
-    public class EcsWorldProvider : EcsWorldProvider<EcsWorld> { }
+    public class EcsWorldProvider : EcsWorldProvider<EcsWorld>
+    {
+        protected override EcsWorld BuildWorld(ConfigContainer configs) { return new EcsWorld(configs, WorldID); }
+    }
 }
diff --git a/src/Connectors/EcsWorldProvider.cs b/src/Connectors/EcsWorldProvider.cs
index c9623a8..480291d 100644
--- a/src/Connectors/EcsWorldProvider.cs
+++ b/src/Connectors/EcsWorldProvider.cs
@@ -46,6 +46,10 @@ namespace DCFApixels.DragonECS
         {
             get { return _world == null; }
         }
+        public short WorldID
+        {
+            get { return _worldID; }
+        }
         public int EntitiesCapacity
         {
             get { return _entitiesCapacity; }
@@ -89,7 +93,9 @@ namespace DCFApixels.DragonECS
         {
             if (_world == null || _world.IsDestroyed)
             {
-                Set(BuildWorld());
+                EcsWorldConfig config = new EcsWorldConfig(_entitiesCapacity, _groupCapacity, _poolsCapacity, _poolComponentsCapacity, _poolRecycledComponentsCapacity);
+                ConfigContainer configs = new ConfigContainer().Set(config);
+                Set(BuildWorld(configs));
                 OnWorldCreated(_world);
             }
             return _world;
@@ -119,12 +125,7 @@ namespace DCFApixels.DragonECS
         #endregion
 
         #region Events
-        protected virtual TWorld BuildWorld()
-        {
-            EcsWorldConfig config = new EcsWorldConfig(_entitiesCapacity, _groupCapacity, _poolsCapacity, _poolComponentsCapacity, _poolRecycledComponentsCapacity);
-            ConfigContainer configs = new ConfigContainer().Set(config);
-            return (TWorld)Activator.CreateInstance(typeof(TWorld), new object[] { configs, _worldID });
-        }
+        protected abstract TWorld BuildWorld(ConfigContainer configs);
         protected virtual void OnWorldCreated(TWorld world) { }
         #endregion
     }