diff --git a/src/interfaces/core/engine/classes-engine.interfaces.ts b/src/interfaces/core/engine/classes-engine.interfaces.ts
index 9a8f250..b4156cf 100644
--- a/src/interfaces/core/engine/classes-engine.interfaces.ts
+++ b/src/interfaces/core/engine/classes-engine.interfaces.ts
@@ -255,7 +255,7 @@ export interface IGameMap {
      * @param metadata - Object metadata
      * @returns { GameObject } - GameObject, also generates object error events, if need
      */
-    readonly createObject: <T = any>(obj: IGameObject, metadata?: T) => GameObject;
+    readonly createObject: <T = any>(obj: IGameObject<T>, metadata?: T) => GameObject;
     
     /**
      * Delete one object by id
diff --git a/src/interfaces/entities/world-objects/base-world-objects.interfaces.ts b/src/interfaces/entities/world-objects/base-world-objects.interfaces.ts
index 114237d..904e6cb 100644
--- a/src/interfaces/entities/world-objects/base-world-objects.interfaces.ts
+++ b/src/interfaces/entities/world-objects/base-world-objects.interfaces.ts
@@ -36,7 +36,7 @@ export interface IChest {
     readonly items: IItem[]
 }
 
-export interface IGameObject extends Pick<ITarget, 'position' | 'name'> {
+export interface IGameObject<T = any> extends Pick<ITarget, 'position' | 'name'> {
     /**
      * Type of GameObject
      */
@@ -45,7 +45,7 @@ export interface IGameObject extends Pick<ITarget, 'position' | 'name'> {
     /**
      * Any object metadata for create. See CreateItemMetadata, CreateTowerMetadata, etc.
      */
-    readonly metadata?: any;
+    readonly metadata?: T;
 
     /**
      * Internal object id. Will be generated automatic
diff --git a/src/world/map.ts b/src/world/map.ts
index 055ccf5..b94b847 100644
--- a/src/world/map.ts
+++ b/src/world/map.ts
@@ -276,7 +276,7 @@ export class GameMap implements Map {
         }
     }
 
-    public createObject<T = any>(obj: IGameObject, metadata?: T) {
+    public createObject<T = any>(obj: IGameObject<T>, metadata?: T) {
         const object = new GameObject(obj, this.manager, this, metadata ?? obj.metadata)
 
         this.objects.set(object.id, object)