This page contains Doom 3 Unlockables for Xbox called "Nightmare mode" and has been posted or updated on Jan 29, 2009 by xBAMFx BLOODY.
- Developer: Vicarious Visions
- Publisher: Activision
- Genre: Action Shooter First-Person
- Release: Apr 3, 2005
- ESRB: Mature
Beat the game on any difficulty setting, When you start on Nightmare mode, you begin with the Soul Cube
If you know other secrets, hints, glitches or level guides, then please Submit your Cheats and share your insights with other gamers.