--> Alien Swarm
--> BioShock
--> Borderlands
--> Codename Gordon
--> Counter-Strike
--> Counter-Strike: Source
--> Counter-Strike: Source Beta
--> D.I.P.R.I.P. Warm Up
--> Day of Defeat
--> Day of Defeat: Source
--> Deathmatch Classic
--> F.E.A.R.
--> F.E.A.R. 2: Project Origin
--> F.E.A.R.: Extraction Point
--> F.E.A.R.: Perseus Mandate
--> Garry's Mod
--> Grand Theft Auto: Vice City
--> Half-Life
--> Half-Life 2
--> Half-Life 2: Deathmatch
--> Half-Life 2: Episode One
--> Half-Life 2: Episode Two
--> Half-Life 2: Lost Coast
--> Half-Life: Blue Shift
--> Half-Life: Opposing Force
--> Killing Floor
--> Killing Floor Mod: Defence Alliance 2
--> Left 4 Dead
--> Left 4 Dead 2
--> Mass Effect
--> Peggle Extreme
--> Pirates, Vikings, & Knights II
--> Portal
--> Red Faction: Guerrilla
--> Ricochet
--> S.T.A.L.K.E.R.: Shadow of Chernobyl
--> Section 8
--> Serious Sam HD: The Second Encounter
--> Star Trek: D-A-C
--> Star Wars - Jedi Knight: Mysteries of the Sith
--> Star Wars - Jedi Knight II: Jedi Outcast
--> Star Wars: Dark Forces
--> Star Wars Jedi Knight: Dark Forces II
--> Star Wars Jedi Knight: Jedi Academy
--> Supreme Commander 2
--> Synergy
--> Team Fortress 2
--> Team Fortress Classic
--> Unreal Gold
--> Unreal II: The Awakening
--> Unreal Tournament
--> Unreal Tournament 3: Black Edition
--> Unreal Tournament 2004
--> Warhammer 40,000: Dawn of War – Dark Crusade
--> Warhammer 40,000: Dawn of War – Winter Assault
--> Warhammer 40,000: Dawn of War Gold Edition
--> Zombie Panic Source