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 for 800 Microsoft Points, ultimately getting its price halved to 400 Microsoft Points ($5 US). After Microsoft points aren't able to obtain anymore, it's now € 4,79. In September 2010 the game was delisted from the service catalogue however it was subsequently put back on the marketplace. A one-level trial version was also available, including the first level of episode 1. 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, but later halved to 400 Microsoft points (now € 4,79).

Doom
The game was initially published by Activision, but it was replaced by a version published by Bethesda Softworks, however the Xbox 360 port of Doom has been delisted again, since the 14th of April, 2013, and is now impossible to legally download, unless it was purchased before it was taken down. However, a streamlined version of this port along with Doom II was included in Doom 3: BFG Edition.

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.
 * Deathmatches are always played using altdeath rules; the classic deathmatch mode is unavailable.
 * 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 in singleplayer.
 * Music is slower, stored as MIDI files and played using GUS patches.
 * The characters sometimes have higher and lower voices.

Bugs

 * Various monsters are not in fast mode on the Nightmare skill level.
 * Games saved on 12 PM are shown to be saved on 12 AM.
 * Some drum instruments are not correct, for example in E1M9 some drum sounds are replaced by whistles and agogos.
 * Many bugs from the PC versions are still present.
 * If played while not connected to XBOX Live, the game may freeze upon attempting to exit to the main menu. The console also freezes as well meaning the player has to restart it.

Achievements
Doom has 12 achievements, totaling 200 Gamerscore.

Doom II
This version was originally published by Activision, but in late 2012 it was replaced by a version that was published by Bethesda Softworks

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.
 * A new episode, No Rest for the Living.

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 four beats slower, stored as MIDI files and played using GUS patches.
 * 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.
 * If you leave a game, the title demo plays the last game you played over and over.
 * The first switch on the left hand side the first room of Level 02 "Underhalls" has no bars in the way to open.

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.
 * The volume of sounds is not affected by distance.
 * Many bugs from the PC versions are still present. Including the MAP:06 Red Door glitch that freezes the game. In this version it also locks up the console meaning it needs to be restarted.

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.
 * The Bethesda rereleases of these two ports have different GUS patches, and are slightly faster than the Activision release.