Valve Corporation

Valve Corporation (also known as Valve Software) is an American video game company based in Bellevue, Washington. It is best known for the software distribution platform Steam as well as the franchises Half-Life, Counter-Strike, Portal, Team Fortress, and Left 4 Dead amongst others.
== History ==
== Notable Games Published ==
=== Game Developed ===
* Half-Life (1998)
* Team Fortress: Classic (1999)
* Ricochet (2000)
* Counter-Strike (2000)
* Deathmatch: Classic (2001)
* Day of Defeat (2003)
* Counter-Strike: Condition Zero (2004)
* Counter-Strike: Source (2004)
* Half-Life 2 (2004)
* Day of Defeat: Source (2005)
* Portal (2007)
* Team Fortress 2 (2007)
* Left 4 Dead (2008)
* Left 4 Dead 2 (2009)
* Alien Swarm (2010)
* Portal 2 (2011)
* Counter-Strike: Global Offensive (2012)
* Dota 2 (2013)
* The Lab (2016)
* Artifact (2018)
* Half-Life: Alyx (2020)
=== Games Published ===
* Garry's Mod (2006)
=== Major Franchises ===
* Half-Life (1998-2007, 2020)
* Team Fortress (1999-present)
* Counter-Strike (2000-present)
* Day of Defeat (2003-2005)
* Portal (2007-2011)
* Left 4 Dead (2008-2009)
== Controversies ==
=== Valve vs Vivendi/Activision ===
=== Dota Intellectual Property Ownership ===
=== Refund and Selling Policy ===
=== Monopolization of PC Gaming ===
== See Also ==