- Classic Doom The Classic Doom 3 modification is a remake of the original Doom game, by id Software. The main emphesis is that of brining the older game up to date in a modern graphics engine. The project makes use of all of Doom 3's advanced graphical features while retaining the feel and gameplay of the original game. Note that it contains only shareware levels.
- co-operative gameplay You play with your teammates through the singleplayer levels and fight against the demons.
- Doom 3 Last Man Standing Coop You play with your teammates through the singleplayer levels and fight against the demons. It is more popular than Doom 3 Open Coop.