Starwars: Knights of The Old Republic
5.7 hrs last two weeks / 22.7 hrs on record
Osmos
0.1 hrs last two weeks / 7.4 hrs on record
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Bioshock
Borderlands
54 hrs on record
Commander Keen Complete Pack
Condition Zero
Condition Zero Deleted Scenes
Counter-Strike
Counter-Strike: Source
Darkest Hour
Darwinia
Day of Defeat
Day of Defeat: Source
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Dead Space
10.5 hrs on record
Deathmatch Classic
Defcon
Doom 2
Doom 3
Doom 3: Resurrection of Evil
Earth 2160
Fallout 3
72.8 hrs on record
Final Doom
Full Pipe
Garry's Mod
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Grand Theft Auto
Grand Theft Auto 2
Grand Theft Auto 3
Grand Theft Auto: San Andreas
Grand Theft Auto: Vice City
Half-Life
Half-Life 2
Half-Life 2: Deathmatch
Half-Life 2: Episode One
Half-Life 2: Episode Two
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Half-Life 2: Lost Coast
Half-Life: Blue Shift
Half-Life: Opposing Force
Half-Life: Source
Half-Life Deathmatch: Source
Heretic: Shadow of the Serpent Riders
Hexen
Hexen 2
Hexen: Deathkings of the Dark Citadel
Killing Floor
12.8 hrs on record
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Killing Floor Mod: Defence Alliance 2
Killing Floor SDK
Left 4 Dead
0.2 hrs on record
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Left 4 Dead Authoring Tools
Mare Nostrum
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Mare Nostrum Dedicated Server
Master Levels of Doom II
Mirror's Edge
Oddworld: Abe's Exoddus
Oddworld: Abe's Oddysee
Penumbra: Black Plague
9.1 hrs on record
Penumbra: Overture
7.5 hrs on record
Penumbra: Requiem
3.2 hrs on record
Portal
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Psychonauts
Quake
Quake 3 Arena
Quake 3 Team Arena
Quake II
Quake II: Ground Zero
Quake II: The Reckoning
Quake Mission Pack 1: Scourge of Armagon
Quake Mission Pack 2: Dissolution of Eternity
Red Orchestra
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Return to Castle Wolfenstein
Ricochet
SiN 1
SiN 1 Multiplayer
SiN Episodes: Emergence
Source SDK
Spear of Destiny
STALKER: Shadow of Chernobyl
2.9 hrs on record
Team Fortress 2
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Team Fortress Classic
The Longest Journey
Ultimate Doom
