Timeline

Below is a timeline of Doom-related events.

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.
 * 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.
 * December 23 - Heretic is released.

1995

 * April 30 - Ultimate Doom is released.
 * June - The first Doom novel is published.
 * October 30 - Hexen is released.
 * December 26 - The Master Levels for Doom II are released.

1996

 * May 31 - Strife is released.
 * June 17 - Final Doom is released.
 * June 22 - Quake is released.
 * Chex Quest is released in boxes of Chex cereal.
 * Hexen: Deathkings of the Dark Citadel is released.

1997

 * March 31 - Doom 64 is released.
 * May 1 - The Doom Music album is released.
 * Fall - The Depths of Doom Trilogy combination pack is released.
 * September - Reaper Miniatures releases a line of Doom miniatures.
 * 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 2 - The Doom news site New Doom is founded.

2001

 * September - The Ultimate Doom Trilogy: Collector's Edition combination pack is released, incudes 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 promotion 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.
 * October 18 - Quake 4 is released.
 * October 21 - 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.
 * July 11 - Prey is released in the US.
 * 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.
 * September 28 - Enemy Territory: Quake Wars is released.

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 rereleases 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 purchased by ZeniMax Media.
 * June 26 - Doom Resurrection is released for the iPhone OS.
 * August 18 - Wolfenstein is released in the US.
 * October 31 - Doom Classic, a port of Ultimate Doom, is released for the iPhone OS.

2010

 * February 8 - The sequel to Doom RPG titled Doom II RPG is released.
 * February 28 - level designer Jean-Paul LeBreton publishes a noted design analysis on Doom and releases Arcadia Demade, a Doom II version of a BioShock level.
 * 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.
 * May 10 - Brink is released in the US.
 * September 5 - at doomwiki.org.
 * October 4 - Rage is released in the US.
 * 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 - On Steam, Ultimate Doom, Doom II, Final Doom, and Resurrection of Evil have their prices reduced to $4.99 / 4,99€ / $3.99; and Doom 3 to $9.99 / 9.99€ / £5.99. The Master Levels, however, are no longer available, despite still being listed, since they are no longer bundled with Doom II and the Doom Pack Complete and Super id Software Pack compilation have been removed.