This is a list of all games developed by Valve Corporation, ordered by date. Release dates are proportionate to when they were added to Steam; thus, the release date may not reflect the actual game release.
*Appended to Steam upon release.
1998[]
Title | Release date | Notes |
---|---|---|
Half-Life | November 19th, 1998* | This game was revolutionary at its time. It was the first game to actually tell a story in the game. |
Half-Life: Uplink | February 12th, 1999. | A demo of Half-Life 1. |
Team Fortress Classic | April 1st, 1999 | |
Half-Life: Opposing Force | November 1st, 1999* | The 1st expansion pack to Half Life 1. |
Counter-Strike | November 1st, 2000 | Valve acquired the rights to Counter-Strike and released a retail version called "Counter-Strike 1.0." |
Ricochet | Novemer 1st, 2000 | |
Deathmatch Classic | June 1st, 2001 | Basically Quake Deathmatch but in Half-Life. |
Half-Life: Blue Shift | June 1st, 2001 | The 2nd expansion pack to Half-Life. |
Half-Life: Decay | November 14th, 2001 | A PS2 Expansion Pack to the game Half Life. |
Day of Defeat | May 1st, 2003* | Originally a mod for Half-Life, Valve acquired and released a standalone version. |
Counter-Strike: Condition Zero | March 1st, 2004 | |
Counter-Strike: Condition Zero Deleted Scenes | March 23rd, 2004 | Condition Zero Deleted Scenes is one of the only Counter-Strike games to kind of have a story. |
Half-Life: Source | June 1st, 2004 | Remake of Half-Life in the Source engine. |
Counter-Strike: Source | November 1st, 2004 | Developed by Valve and Ritual Entertainment. Source remaster of Counter Strike. |
Half-Life 2 | November 16, 2004 | First Valve title to require Steam to run, digital and retail. |
Half-Life 2: Deathmatch | December 1, 2004 | |
Day of Defeat: Source | September 26, 2005 | Remake of Day of Defeat in the Source engine. |
Half-Life 2: Lost Coast | October 27, 2005 | A tech demo showcasing high-dynamic-range rendering. |
Half-Life 2: Episode One | June 1, 2006 | A game that shows what happens after Half-Life 2. |
Half-Life 2: Episode Two | October 10, 2007 | A game that shows what happens after Half-Life 2: Episode 1. |
Portal | October 10, 2007 | A puzzle game inspired by Narbacular Drop. |
Team Fortress 2 | October 10, 2007 | |
The Orange Box | October 10, 2007 | Game bundle including Half-Life 2, Half-Life 2: Episode One, Half-Life 2: Episode Two, Team Fortress 2 and Portal. |
Counter-Strike Online | January 2008 | Basically a free version of Counter Strike. |
Left 4 Dead | November 17, 2008 | |
Left 4 Dead 2 | November 17, 2009 | |
Alien Swarm | July 19, 2010 | Originally a mod, Valve released a Source engine remake as a standalone game. |
Portal 2 | April 18, 2011 | Portal 2 is considered the "Family Friendly" Valve game. |
Dota 2 | July 9, 2013 | |
Counter-Strike Online 2 | 2013 | |
Counter-Strike Nexon: Zombies | October 7, 2014 | |
Left 4 Dead: Survivors | December 10, 2014 | |
The Lab | April 5, 2016 | A collection of VR experiments and games. |
Artifact | November 28, 2018 | A digital collectible card game set in the Dota 2 universe. |
Dota Underlords | June 20th, 2019 | An auto-battler strategy game set in the Dota 2 universe. |
Half-Life: Alyx | March 23, 2020 | A VR prequel to the popular game Half Life 2. |
Counter-Strike 2 | September 27th, 2023 | Originally Counter-Strike: Global Offensive has turned into a game made in the source 2 engine. |