Half-LifePortalTeam Fortress 2Source FilmmakerValveBlack MesaLambdaGenerationSven Co-opEntropy : ZeroGarry's ModCounter-Strike: Global OffensiveLeft 4 Dead

Joined

Left 4 Dead
Left 4 Dead
Team Fortress 2
Team Fortress 2
Portal
Portal
Half-Life
Half-Life