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.

A matching port of Doom II was released on May 26, 2010. This port includes a new episode, No Rest for the Living. The Doom II port and new episode were also developed by Nerve Software. The Doom II port is priced at 800 Microsoft points, similar to what the Doom port cost upon launch and before its price was halved.

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.

Achievements
Doom has 12 achievements, totaling 200 Gamerscore.

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. Weapons are grouped by ammo they use, on the directional pad.
 * 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.
 * Music is slower.
 * The medikit, stimpack and berserk item sprites have been changed to have a pill on the front, instead of a red cross; in compliance with Red Cross wishes that this symbol not be used without authorization.

Bugs

 * Sprite flickering can be seen randomly.
 * All sounds are played as if their sample rate was 11025 Hz, making the few 22050 Hz sounds (such as DSDBLOAD) slowed down.

Achievements
Doom II has 12 achievements, totaling 200 Gamerscore, most of which are earned in similar ways as the Doom port's achievements. Most Doom II achievements are named after lines in the Doom comic.

Trivia

 * The Doom II Live Arcade port was accidentally released on the Japanese Live Arcade marketplace prior to the intended release.
 * The Doom II port includes the Xbox bonus level, Betray. However, it is inaccessible.