diff --git a/aiogram/types/callback_game.py b/aiogram/types/callback_game.py
index 4cd0d5f5..df5134f2 100644
--- a/aiogram/types/callback_game.py
+++ b/aiogram/types/callback_game.py
@@ -7,4 +7,4 @@ class CallbackGame(base.TelegramObject):
 
     https://core.telegram.org/bots/api#callbackgame
     """
-    pass
+     raise RuntimeError("  A placeholder, currently holds no information. Use BotFather to set up your game.")