Team Fortress 2
8.9 hrs last two weeks / 835.1 hrs on record
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Aion Collectors Edition
127.8 hrs on record
Audiosurf
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Braid
9.2 hrs on record
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Condition Zero
Condition Zero Deleted Scenes
Counter-Strike
0.7 hrs on record
Counter-Strike: Source
Day of Defeat
Day of Defeat: Source
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Deathmatch Classic
Defense Grid: The Awakening
32 hrs on record
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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
Left 4 Dead
9.8 hrs on record
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Left 4 Dead Authoring Tools
Mass Effect
Portal
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Ricochet
SiN 1
SiN 1 Multiplayer
SiN Episodes: Emergence
Source SDK
