Team Fortress 2
45.6 hrs last two weeks / 657.9 hrs on record
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Call of Duty: Modern Warfare 2
5.7 hrs last two weeks / 27.4 hrs on record
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Left 4 Dead 2
5.4 hrs last two weeks / 33.7 hrs on record
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Call of Duty: Modern Warfare 2 - Multiplayer
2.3 hrs last two weeks / 57.2 hrs on record
Audiosurf
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Commander Keen Complete Pack
Counter-Strike
Counter-Strike: Source
1.6 hrs on record
Darkest Hour
Day of Defeat
Deathmatch Classic
Defcon
3 hrs on record
Doom 2
Doom 3
Doom 3: Resurrection of Evil
Fallout
3 hrs on record
Fallout 2
Fallout Tactics
0.4 hrs on record
Final Doom
Gish
Grand Theft Auto IV
Half-Life
0.9 hrs on record
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 Deathmatch: Source
Heretic: Shadow of the Serpent Riders
Hexen
Hexen 2
Hexen: Deathkings of the Dark Citadel
Left 4 Dead
73.2 hrs on record
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Left 4 Dead 2 Add-on Support
Left 4 Dead 2 Authoring Tools
Left 4 Dead Authoring Tools
Mare Nostrum
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Mare Nostrum Dedicated Server
Master Levels of Doom II
Portal
1.3 hrs on record
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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
Team Fortress Classic
TrackMania United
Ultimate Doom
Wolfenstein 3D
X-Com: Apocalypse
X-Com: Enforcer
X-Com: Interceptor
X-COM: Terror from the Deep
