Both titles are rated "M" for Mature (Blood and Gore, Intense Violence) by the ESRB.

"Prepare to travel to the undiscovered depths of Hell in these two new chapters in the DOOM 3 experience," said Todd Hollenshead, CEO, id Software. "Xbox gamers have been anxiously awaiting their chance to experience the terror of DOOM 3 and now the wait is over. For PC fans, Resurrection of Evil delivers tougher demons, faster action, new weapons, and the same unrelenting terror that has shocked millions of players worldwide."

DOOM 3 Xbox

DOOM 3 for the Xbox makes the living room the scariest place in the house with heart-pounding action, CG-quality graphics and haunting 5.1 Dolby Digital sound. In addition to the most frightening and visceral single player experience ever created, the horror masterpiece features an all new two-player cooperative campaign and exciting Xbox Live multiplayer action.

DOOM 3 for the Xbox, which has been co-developed by id Software and Vicarious Visions, is also available as an exclusive Limited Collector's Edition. The special edition includes full versions of the original Ultimate DOOM and DOOM II -- playable in single player or 2-4 player split-screen -- as well as a special concept art gallery and "Behind the Scenes" feature on the making of DOOM 3, containing interviews with the team at id Software.

DOOM 3: Resurrection of Evil

Co-developed by Nerve Software and id Software, DOOM 3: Resurrection of Evil continues the terrifying and intense action of the top selling, critically acclaimed DOOM 3.

Two years following the unexplained disaster on Mars, the UAC returns to the abandoned facilities to investigate a mysterious beacon buried deep in the ruins of the ancient civilization. As a combat engineer, you fight for survival against an army of new demons and zombies, including Hell's own hunters. Use powerful new weapons like the classic double-barreled shotgun and the gravity defying "grabber," a device that can move, catch and throw objects or small enemies, as you battle through the onslaught of evil sent to hunt you down. Featuring new locations, puzzles and extraordinary powers like the ability to slow time, Resurrection of Evil will have players reloading for the bloodiest battle yet.

The expansion pack also features multiplayer support for up to eight players covering five modes of play, including "Capture The Flag," created in part by development studio Threewave, designers of CTF for the original QUAKE.