List of Valve Corporation video games

Timeline of games and Steam products released by Valve

Valve Corporation is an American video game developer and publisher founded in 1996 by former Microsoft employees Gabe Newell and Mike Harrington and currently based in Bellevue, Washington. The studio is known for their first-person shooter series, including Half-Life, Counter-Strike, Team Fortress, and Portal. All games released by Valve use one of two engines of their own creation – the Quake-based GoldSrc or its successor, Source.

Half-Life

Title	Details
Half-Life Original release date(s): ^NA November 19, 1998	Release years by system: 1998 – Microsoft Windows 2001 – PlayStation 2 2013 – Linux, OS X
	Notes: Valve's first video game. Ported to the PlayStation 2 in 2001 along with the co-operative game Half-Life: Decay. Singleplayer component ported to the Source engine and released on Windows as Half-Life: Source in 2004 (and later on OS X and Linux) . Multiplayer component ported to the Source engine and released on Windows as Half-Life Deathmatch: Source in 2005 (and later on OS X and Linux) .
Half-Life: Opposing Force Original release date(s): ^NA November 1, 1999 ^EU November 15, 1999	Release years by system: 1999 – Microsoft Windows 2013 – Linux, OS X
	Notes: Developed with Gearbox Software. The first expansion pack for Half-Life.
Half-Life: Blue Shift Original release date(s): ^NA June 12, 2001	Release years by system: 2001 – Microsoft Windows 2013 – Linux, OS X
	Notes: Developed with Gearbox Software. The second expansion pack for Half-Life.
Half-Life: Decay Original release date(s): ^NA November 14, 2001	Release years by system: 2001 – PlayStation 2
	Notes: Developed with Gearbox Software. Included in the PS2 version of Half-Life

Promotional releases

Title	Details
Half-Life: Day One Original release date(s): 1998	Release years by system: 1998 – Microsoft Windows
Half-Life: Day One Original release date(s): 1998	Notes: Demo for Half-Life packaged with certain graphics cards.
Half-Life: Uplink Original release date(s): February 12, 1999	Release years by system: 1999 – Microsoft Windows
	Notes: Demo for Half-Life which includes levels and areas not present in the full game.

Half-Life 2

Title	Details
Half-Life 2 Original release date(s): ^NA November 16, 2004 ^EU November 16, 2004	Release years by system: 2004 – Microsoft Windows 2005 – Xbox 2007 – PlayStation 3, Xbox 360 2010 – OS X 2013 – Linux 2014 – Shield Portable
	Notes: Sequel to the original Half-Life. Bundled with The Orange Box, which was released on PC, Xbox 360, and PlayStation 3 in 2007. After receiving an overhaul update to the latest Source engine build, it was released for OS X in 2010.
Half-Life 2: Deathmatch Original release date(s): ^NA December 1, 2004	Release years by system: 2004 – Microsoft Windows 2010 – OS X 2013 – Linux
	Notes: Multiplayer component to Half-Life 2 released separately from the main game.
Half-Life 2: Lost Coast Original release date(s): ^NA October 27, 2005	Release years by system: 2005 – Microsoft Windows 2013 – Linux, OS X
	Notes: Promotional tech demo showcasing the high dynamic range lighting capabilities of the Source engine.
Half-Life 2: Episode One Original release date(s): ^NA June 1, 2006	Release years by system: 2006 – Microsoft Windows 2007 – PlayStation 3, Xbox 360 2010 – OS X 2013 – Linux
	Notes: The first installment in a planned trilogy of sequels to Half-Life 2. Bundled with The Orange Box, which was released on PC, Xbox 360, and PlayStation 3 in 2007.
Half-Life 2: Episode Two Original release date(s): ^NA October 10, 2007 ^EU October 18, 2007 ^AUS October 25, 2007	Release years by system: 2007 – Microsoft Windows, PlayStation 3, Xbox 360 2010 – OS X 2013 – Linux
	Notes: The second installment in a planned trilogy of sequels to Half-Life 2. Bundled with The Orange Box, which was released on PC, Xbox 360, and PlayStation 3 in 2007.

Counter-Strike

Title	Details
Counter-Strike Original release date(s): ^NA November 8, 2000	Release years by system: 2000 – Microsoft Windows 2004 – Xbox 2013 – Linux, OS X
	Notes: Multiplayer first-person shooter modification of the original Half-Life.
Counter-Strike: Condition Zero Original release date(s): ^NA March 20, 2004	Release years by system: 2004 – Microsoft Windows, Xbox 2013 – Linux, OS X
	Notes: Developed with Gearbox Software, Ritual Entertainment, Rogue Entertainment, and Turtle Rock Studios. Follow-up to Counter-Strike which includes single-player missions.
Counter-Strike: Source Original release date(s): ^NA October 7, 2004	Release years by system: 2004 – Microsoft Windows 2010 – OS X 2013 – Linux
	Notes: Source engine remake of the original Counter-Strike.
Counter-Strike: Global Offensive Original release date(s): ^NA August 21, 2012	Release years by system: 2012 – Microsoft Windows, OS X, PlayStation 3, Xbox 360 2014 – Linux
	Notes: Is downloadable title on Xbox 360 and PlayStation 3.

Team Fortress

Title	Details
Team Fortress Classic Original release date(s): ^NA April 7, 1999	Release years by system: 1999 – Microsoft Windows 2013 – Linux, OS X
	Notes: Class-based multiplayer shooter adapted from the Quake modification Team Fortress.
Team Fortress 2 Original release date(s): ^NA October 10, 2007 ^EU October 18, 2007 ^AUS November 22, 2007 ^UK October 19, 2007	Release years by system: 2007 – Microsoft Windows, PlayStation 3, Xbox 360 2010 – OS X 2013 – Linux
	Notes: Sequel to Team Fortress Classic. Bundled with The Orange Box, which was released on PC, Xbox 360, and PlayStation 3 in 2007. Became free to play on Steam on June 23, 2011.

Day of Defeat

Title	Details
Day of Defeat Original release date(s): ^NA May 1, 2003	Release years by system: 2003 – Microsoft Windows 2013 – Linux, OS X
	Notes: World War II-based multiplayer shooter modification of the original Half-Life.
Day of Defeat: Source Original release date(s): ^NA September 26, 2005	Release years by system: 2005 – Microsoft Windows 2010 – OS X 2013 – Linux
	Notes: Source engine remake of Day of Defeat.

Portal

Title	Details
Portal Original release date(s): ^NA October 10, 2007 ^EU October 18, 2007 ^AUS November 18, 2007 ^UK October 19, 2007	Release years by system: 2007 – Microsoft Windows, PlayStation 3, Xbox 360 2010 – OS X 2013 – Linux 2014 – Shield Portable
	Notes: Physics-based first-person puzzle game developed by graduates of DigiPen Institute of Technology. Bundled with The Orange Box, which was released on PC, Xbox 360, and PlayStation 3 in 2007.
Portal 2 Original release date(s): ^NA April 19, 2011 ^EU April 21, 2011 ^AUS April 21, 2011	Release years by system: 2011 – Microsoft Windows, OS X, PlayStation 3, Xbox 360 2014 – Linux
	Notes: Sequel to Portal. First Valve game developed for the PlayStation 3 and the first console version of a Valve game to feature Steam and Steamworks.

Left 4 Dead

Title	Details
Left 4 Dead Original release date(s): ^NA November 18, 2008 ^EU November 21, 2008	Release years by system: 2008 – Microsoft Windows, Xbox 360 2010 – OS X
	Notes: Developed by Turtle Rock Studios. Co-operative shooter set in the zombie apocalypse.
Left 4 Dead 2 Original release date(s): ^NA November 17, 2009 ^EU November 20, 2009	Release years by system: 2009 – Microsoft Windows, Xbox 360 2010 – OS X 2013 – Linux
	Notes: Sequel to Left 4 Dead.

Other games

Title	Details
Deathmatch Classic Original release date(s): ^NA June 11, 2000	Release years by system: 2000 – Microsoft Windows 2013 – Linux, OS X
	Notes: Multiplayer modification of the original Half-Life
Ricochet Original release date(s): ^NA November 1, 2000	Release years by system: 2000 – Microsoft Windows 2013 – Linux, OS X
	Notes: Multiplayer modification of the original Half-Life.
The Orange Box Original release date(s): ^NA October 9, 2007 ^EU October 19, 2007 ^AUS October 25, 2007	Release years by system: 2007 – Microsoft Windows, PlayStation 3, Xbox 360 2010 – OS X 2013 – Linux
	Notes: A compilation including Half-Life 2, Half-Life 2: Episode One and Episode Two, Team Fortress 2, and Portal. PlayStation 3 version's development was outsourced to Electronic Arts due to Valve being a critic of the PS3 hardware at the time.
Alien Swarm Original release date(s): ^NA July 19, 2010 ^EU July 19, 2010	Release years by system: 2010 – Microsoft Windows
	Notes: A remake of the Alien Swarm mod for Unreal Tournament 2004 on the Source engine made by the developers between other projects after they were hired by Valve. Released for free via Steam with access to the complete code base to help developers creating Source engine mods.
Dota 2 Original release date(s): July 9, 2013	Release years by system: 2013 – Microsoft Windows, OS X, Linux
Dota 2 Original release date(s): July 9, 2013	Notes: Sequel to Defense of the Ancients Ported over to Source 2 in 2015
The Lab Original release date(s): April 5, 2016	Release years by system: 2016 – Microsoft Windows
The Lab Original release date(s): April 5, 2016	Notes: Released for free via Steam to support the release of the HTC Vive virtual reality headset. The Lab features a collection of numerous VR experiments in an alternate reality version of Portal.

References

"Valve - Games". Valve Corporation. Retrieved January 25, 2010.

Valve games

Half-Life	Half-Life Opposing Force Blue Shift Decay Half-Life 2 Deathmatch Lost Coast Episode One Episode Two

Portal	Portal Portal 2

Counter-Strike	Counter-Strike Condition Zero Source Global Offensive

Day of Defeat	Day of Defeat Source

Team Fortress	Team Fortress Classic Team Fortress 2

Left 4 Dead	Left 4 Dead Left 4 Dead 2

Other	Deathmatch Classic Ricochet The Orange Box Alien Swarm Dota 2 The Lab

Book Category

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