Nope, it's only the engine. If it's anything like the other iD software code releases, you will be able to use the content from the game disc with the engine bu

Nope, it's only the engine. If it's anything like the other iD software code releases, you will be able to use the content from the game disc with the engine built from source, or you will be able to extract the content from the demo if you dont have the game.