Counter-Strike, which is described as being the "largest stand-alone multiplayer game-offering in one commercial product". Combining all the elements of the Half-Life universe, the package will contain Valve's own multiplayer offerings (Team Fortress 1.5, Half-Life multiplay and Half-Life: Opposing Force multiplay), three as-yet-unannounced third-party MODS, and the number one online game around, Counter-Strike.