Valve Software

Counter-Strike: Global Offensive

Counter-Strike: Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched 12 years prior.

CS:GO features new maps, characters, and weapons and delivers updated versions of the classic CS content (de_dust, etc.). In addition, CS:GO introduces new gameplay modes, matchmaking, leaderboards, and more.

Half-Life 2: Deathmatch

Fast multiplayer action set in the Half-Life 2 universe! HL2's physics adds a new dimension to deathmatch play. Play straight deathmatch or try Combine vs. Resistance teamplay. Toss a toilet at your friend today!

Half-Life Deathmatch Source

Winner of over 50 Game of the Year awards, Half-Life set new standards for action games when it was released in 1998. Half-Life: Source is a digitally remastered version of the critically acclaimed and best selling PC game, enhanced via Source technology to include physics simulation, enhanced effects, and more.

Dota 2

Dota 2 is a Multiplayer Online Battle Arena (MOBA) game from Valve running on an updated version of the Source engine. The game was released on July 9, 2013 for Microsoft Windows, OS X and Linux versions of Dota 2 were released on July 18, 2013.

Alien Swarm

Alien Swarm is a free game and Source SDK release from a group of talented designers at Valve who were hired from the Mod community. Available free of charge, the game thrusts players into an epic bug hunt featuring a unique blend of co-op play and squad-level tactics. With your friends, form a squad of four distinct IAF Marine classes.

Portal 2

Portal 2 is a puzzle game presented from the first-person perspective. Normally, the player, as either Chell in the single-player campaign or as one of two robots, Atlas or P-body, in the co-operative campaign, can move, look, and carry and drop objects. The goal is to maneuver the characters through a number of test chambers in the Aperture Science facility, traversing the chamber from the start to the exit.

Counter-Strike

Counter-Strike is a tactical multiplayer FPS from Valve Software. Originally designed by a fan as a Half-Life mod, Valve eventually released version 1.6 as a standalone commercial product through a licensing deal. This version remains highly popular to this day.

Left 4 Dead 2

An awesome game about killing zombies. Follow-up to Left 4 Dead, this massively popular zombie killer provides the same fun fast-paced action of the original, supporting up to 4 player co-op.

Half-Life (Non-Steam)

Half-Life is a 1998 first-person shooter (FPS) game developed by Valve and published by Sierra Studios for Windows. It was Valve's debut product and the first game in the Half-Life series. Players assume the role of Gordon Freeman, a scientist who must escape the Black Mesa Research Facility after it is invaded by aliens. The gameplay consists of combat, exploration and puzzle-solving.

Left 4 Dead

Left 4 Dead is a multiplayer first person shooter from Valve, inspired by recent "zombie apocalypse" movies such as 28 Days Later and I Am Legend. You and three other players must cooperate to progress through a series of environments while fending off an unending onslaught of virus-infected ghouls.