Graphics engine may refer to: Game engine no such thing googled it, and all i can find is it referring me to game engines. The core functionality typically provided by a game engine includes a rendering engine - in which renders the Graphics/misc. not a computer freak in this way, just know about games. but i don't see a way to go against this here. Guess i need to call a Friend he could answer this in matter of minutes. :wallbash: :facepalm: A rendering engine has nothing to do with the game logic. Unreal engine is used on many different games, but they all have wildly varying game logic, and even changes to the rendering engine. And for any familiar with sourcemods it is exactly the game logic that you modify to create your mod, you don't get access to any underlying engine components like the renderer