Xbox 360

The Ultimate Doom, named simply Doom on the service, was released as a download for the Xbox 360 on the Xbox Live Arcade service on September 27, 2006. A one-level trial version can be downloaded for free, or the full version can be bought for 400 Microsoft Points ($5 US). The port was developed by Nerve Software and Vicarious Visions.

An upcoming Live Arcade port of Doom II was announced at the 2009 QuakeCon.

Differences between the Xbox 360 and PC versions
The game is an accurate port of the PC version, but features several differences.

New features

 * High definition video mode (1080i) support.
 * Online multiplayer with a lobby function.
 * Splitscreen multiplayer.
 * 5.1 surround sound.
 * Leaderboards.
 * Achievements.

Changes

 * The controller buttons cannot be rebound.
 * Exit switches and portals are deactivated in deathmatch games.
 * In cooperative games a key picked up by one of the players is added to the inventory of all the other players as well.
 * No cheat codes.
 * The ability to freely scroll the automap is disabled (i.e. the automap is always in follow mode).
 * The gamma setting can not be altered.
 * The menu is different.
 * The button to return to the level's start after dying is fire instead of use.

Bugs

 * Various monsters are not in fast mode on the Nightmare skill level.
 * The game sometimes freezes in situations where the original game did not. (Although they may have been removed through a patch that installs when you start the game.)

Achievements
Doom has 12 Achievements, totaling 200 GamerScore.