Portal was an ambitious attempt to tell a story with the depth of a novel and the interactivity of a game, sitting somewhere between interactive fiction and simulation of a computer system.

Cogs is a puzzle game where players build machines from sliding tiles. Players can choose from 50 levels and 3 gameplay modes. New puzzles are unlocked by building contraptions quickly and efficiently.

Originally planned as a section of the Highway 17 chapter of Half-Life 2, Lost Coast is a playable technology showcase that introduces High Dynamic Range lighting to the Source engine.

Alien Swarm is a free game from a group of 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 [...]

Garry’s Mod is a physics sandbox. Unlike regular games there aren’t any predefined aims or goals. We give you the tools and leave you to play. You spawn objects and weld them together to create your own contraptions – whether [...]

Dota 2 is a multiplayer online battle arena video game and the stand-alone sequel to the Defense of the Ancients (DotA) mod. Each match of Dota 2 involves two teams, both containing five players and occupying a fortified stronghold at either end of the [...]

A Shangai clone with two modes, and the addition of a “bomb” piece that can remove pieces around it. A Shangai clone with two modes, and the addition of a “bomb” piece that can remove pieces around it. Artifact THE CARD GAME [...]

Counter-Strike: Condition Zero Deleted Scenes Being a standalone game, Deleted Scenes is a collection of 12 single player missions that came as a bonus with Counter-Strike: Condition Zero. The missions are not connected with each other, but every of them [...]