Valve Corporation is an American video game development and digital distribution company based in Bellevue, Washington, U.S. that was founded in 1996, and made famous by its first product, Half-Life, which was released in November 1998, and by its distribution software, Steam. They are known for their first-person shooters, and long development cycles.
Famous games from Valve include: The Half Life Series, Portal, Left 4 Dead, Counter Strike, Day of Defeat and the Team Fortress series.
|Classes • Enemies • Equipment • Marines • Playable characters • Weapons|
Achievements • Challenges • Difficulty • Experience • Leveling • Promotion • Skills • Speed running • Strategy
Campaigns • Console • Custom maps • Mapping tutorials • Maps • Modifications • Patches • Server setup