diff --git a/Engine.Core/GameManager.cs b/Engine.Core/GameManager.cs
index cbd8b3b..8410bce 100644
--- a/Engine.Core/GameManager.cs
+++ b/Engine.Core/GameManager.cs
@@ -11,6 +11,9 @@ namespace Syntriax.Engine.Core;
 public class GameManager : IEntity, IEnumerable<IGameObject>
 {
     public Action<GameManager>? OnCameraChanged { get; set; } = null;
+    public Action<GameManager, IGameObject>? OnGameObjectRegistered { get; set; } = null;
+    public Action<GameManager, IGameObject>? OnGameObjectUnRegistered { get; set; } = null;
+
     public Action<IInitialize>? OnInitialized { get; set; } = null;
     public Action<IInitialize>? OnFinalized { get; set; } = null;
     public Action<IAssignable>? OnUnassigned { get; set; } = null;
@@ -149,18 +152,20 @@ public class GameManager : IEntity, IEnumerable<IGameObject>
 
     /////////////////////////////////////////////////////////////////
 
-    private void Unregister(IGameObject gameObject)
-    {
-        gameObject.OnFinalized -= OnGameObjectFinalize;
-
-        _gameObjects.Remove(gameObject);
-    }
-
     private void Register(IGameObject gameObject)
     {
         gameObject.OnFinalized += OnGameObjectFinalize;
 
         _gameObjects.Add(gameObject);
+        OnGameObjectRegistered?.Invoke(this, gameObject);
+    }
+
+    private void Unregister(IGameObject gameObject)
+    {
+        gameObject.OnFinalized -= OnGameObjectFinalize;
+
+        _gameObjects.Remove(gameObject);
+        OnGameObjectUnRegistered?.Invoke(this, gameObject);
     }
 
     private void OnGameObjectFinalize(IInitialize initialize)