Valve
Team Fortress 2
Nine distinct classes provide a broad range of tactical abilities and personalities. Constantly updated with new game modes, maps, equipment and, most importantly, hats!
Dota Underlords
Hire a crew and destroy your rivals in this new strategy battler set in the world of Dota. Join the Beta Season, with crossplay on PC and mobile.
Half-Life 2
1998. HALF-LIFE sends a shock through the game industry with its combination of pounding action and continuous, immersive storytelling. Valve's debut title wins more than 50 game-of-the-year awards on...
Alien Swarm
Alien Swarm is a 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...