Timeline

Below is a timeline of primary or canonical Doom-related events which tie the games to their creators and the world at large. For community releases, see the timeline of mod releases and timeline of source port releases respectively.

Before 1993

 * October 28, 1967 - John Romero is born.
 * August 20, 1970 - John Carmack is born.
 * December 14, 1990 - The first episode of Commander Keen (Marooned on Mars) is released.
 * February 1, 1991 - id Software is officially formed.
 * May 5, 1992 - Wolfenstein 3D is released.
 * September 1992 - The making of Doom begins.

1993

 * February - Doom 0.2 alpha released privately.
 * March - A Doom alpha never released to testers.
 * April 2 - Doom 0.4 alpha released privately.
 * May 22 - Doom 0.5 alpha released privately.
 * July 7 (circa) - Tom Hall is forced to resign from id Software.
 * October - Doom Pre-Beta demo released.
 * December 10 - Doom 0.99 (aka 1.0) shareware is released.

1994

 * January 26 - The first version of the Doom Editing Utilities is released.
 * March 7 - The first public third-party PWAD, the Origwad, is released.
 * October 10 - Doom II is released.
 * November - Doom's first console ports are released for the Sega 32X and Atari Jaguar.
 * December 21 - Rise of the Triad Shareware is released.
 * December 23 - Heretic is released.

1995

 * April 30 - Ultimate Doom is released.
 * June - The first Doom novel is published.
 * September - Doom is released for the Super Nintendo.
 * October 28 - TNT: Evilution is announced delayed in favor of a commercial release as one half of Final Doom.
 * October 30 - Hexen is released.
 * November 16 - Doom is released on the Sony PlayStation.
 * December 26 - The Master Levels for Doom II are released.

1996

 * January 29 - Duke Nukem 3D is released.
 * April 26 - Doom is released for the 3DO.
 * May 31 - Strife is released.
 * June 17 - Final Doom is released.
 * June 22 - Quake is released.
 * August 6 - John Romero is fired from id Software.
 * August 20 - Doom95 is released.
 * October 1 - Final Doom is released for the Sony PlayStation.
 * Chex Quest is released in boxes of Chex cereal.
 * Hexen: Deathkings of the Dark Citadel is released.
 * id Anthology is released, along with the infamous Doom comic contained within.

1997

 * March 26 - Doom is released for the Sega Saturn in the US.
 * March 31 - Doom 64 is released.
 * May 1 - The Doom Music album is released.
 * September - Reaper Miniatures releases a line of Doom miniatures.
 * Fall - The Depths of Doom Trilogy combination pack is released.
 * December 23 - The Doom source code is released.
 * Hacx is released.

1998

 * March 13 - The Doom news site Doomworld is founded.

1999

 * January 11 - Raven Software releases the source code for Heretic and Hexen.
 * April 20 - The Columbine High School Massacre occurs.
 * October 3 - The source code for Doom is re-released under the General Public Licence (GPL) by John Carmack, thanks to persuasion by Andrew "Linguica" Stine.

2000

 * June 1 - John Carmack mentions in his file that id Software has begun a new Doom project.
 * June 2 - The Doom news site New Doom is founded.

2001

 * September - The Ultimate Doom Trilogy: Collector's Edition combination pack is released, including all four official Doom IWADs and Doom95.
 * October 26 - The Game Boy Advance version of Doom is released.

2002

 * October 23 - The Game Boy Advance version of Doom II is released.

2003

 * January 29 - The Ultimate Doom Trilogy: Collector's Edition combination pack is re-released with Doom 3 promotional material.
 * May 6 - Masters of Doom, by David Kushner, is published.

2004

 * August 3 - Doom 3 is made available in the US.
 * Doom: The Boardgame is released.

2005

 * January 5 - The Doom Wiki begins.
 * April 4 - Doom 3: Resurrection of Evil is released.
 * September 13 - Doom RPG is released.
 * September 27 - Adrian Carmack alleges he was forced out of id Software, and files suit against the company.
 * October 21 - The Doom movie premieres in the US.
 * Doom: The Boardgame Expansion Set is released.

2006

 * February 7 - Doom movie DVD is released, along with a series of merchandise based on it.
 * September 27 - Ultimate Doom is released on the Xbox 360 Live Arcade worldwide.

2007

 * August 3 - Every Doom game is released on Steam, along with various Doom and Doom 3 engine games.

2008

 * February 26 - The first Doom 3 novel, Doom 3: Worlds on Fire is published.
 * May 7 - id Software announces that Doom 4 is being developed.
 * September 4 - Raven Software re-releases the source code for Heretic and Hexen under the GNU GPL.

2009

 * March 31 - The second Doom 3 novel, Doom 3: Maelstrom is published.
 * June 24 - id Software is purchased by ZeniMax Media.
 * June 26 - Doom Resurrection is released for the iPhone OS.
 * October 31 - Doom Classic, a port of Ultimate Doom, is released for the iPhone OS.

2010

 * February 8 - Doom II RPG is released.
 * May 26 - Doom II is released on the Xbox 360 Live Arcade in the US along with the included new episode, No Rest for the Living.
 * September - Doom is delisted from the XBLA.

2011

 * February 17 - Doom Wiki forked from Wikia Inc.
 * September 5 - at doomwiki.org.
 * November 22 - the Doom 3 source code is released.

2012

 * January 18 - The Xbox 360 Doom returns to Xbox Live Arcade after over a year of absence caused by licensing issues.
 * October 16 - Doom 3: BFG Edition is released on the US market. The international market follows three days later.
 * November 3 to December 3 - On Steam, the Doom Pack Complete and Super id Software Pack compilation have been removed, and the Doom Classic Complete and Doom 3 Pack introduced. The Master Levels are no longer bundled with Doom II.
 * November 20 - The compilation pack Doom Classic Complete is released on the PlayStation Network.

2013

 * April 3 - Kotaku publishes an article with confirmation from id Software staff that Doom 4 has not only been delayed but entirely restarted.
 * June 26 - Todd Hollenshead announces his resignation as president of id Software.
 * August 1 - QuakeCon 2013 begins, featuring the 20th Anniversary Doom Challenge deathmatch tournament, using Odamex. Bethesda releases commemorative Doom-themed shot glasses, prints, t-shirts, and a 200-count limited edition reprint of the Reaper Miniatures set as part of the event.
 * November 23 - John Carmack announces his resignation from id Software.
 * December 10 - The twentieth anniversary of Doom's release is celebrated.

2014

 * May 1 - ZeniMax Media releases public accusations against John Carmack and, claiming the latter have made use of stolen intellectual property. Carmack fires back several tweets flatly denying their claims.
 * May 5 - Oculus VR releases a public refutation of the claims made by ZeniMax.
 * May 21 - ZeniMax Media and id Software file suit against Oculus VR in the U.S. District Court for the Northern District of Texas.