Team Fortress 2
45.9 hrs last two weeks / 823.3 hrs on record
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Aquaria
0.5 hrs on record
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Audiosurf
0.4 hrs on record
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Borderlands
17 hrs on record
Braid
12.2 hrs on record
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Commander Keen Complete Pack
Condition Zero
Condition Zero Deleted Scenes
Counter-Strike
Counter-Strike: Source
0.4 hrs on record
Day of Defeat
Day of Defeat: Source
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Deathmatch Classic
Doom 2
Doom 3
Doom 3: Resurrection of Evil
Final Doom
Garry's Mod
6.2 hrs on record
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Half-Life
Half-Life 2
0.7 hrs on record
Half-Life 2: Deathmatch
Half-Life 2: Episode One
Half-Life 2: Episode Two
1.6 hrs on record
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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
Left 4 Dead
17.2 hrs on record
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Left 4 Dead Authoring Tools
Machinarium
4.7 hrs on record
Master Levels of Doom II
Monkey Island Special Edition
0.7 hrs on record
Oddworld: Abe's Exoddus
6.4 hrs on record
Oddworld: Abe's Oddysee
0.3 hrs on record
Osmos
6.5 hrs on record
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Portal
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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
Rag Doll Kung Fu
Return to Castle Wolfenstein
Ricochet
Source SDK
1.2 hrs on record
Spear of Destiny
Street Fighter IV
21.9 hrs on record
Team Fortress Classic
Ultimate Doom
Wolfenstein 3D
Zeno Clash
7.9 hrs on record
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