Left 4 Dead 2
48.5 hrs last two weeks / 118.7 hrs on record
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Bioshock
Condition Zero
Condition Zero Deleted Scenes
Counter-Strike
15.3 hrs on record
Counter-Strike: Source
1.2 hrs on record
Day of Defeat
Day of Defeat: Source
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Deathmatch Classic
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
752.9 hrs on record
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Left 4 Dead 2 Add-on Support
Left 4 Dead 2 Authoring Tools
Left 4 Dead 2 Demo
19.5 hrs on record
Left 4 Dead Authoring Tools
Portal
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Ricochet
Sid Meier's Civilization IV
Sid Meier's Civilization IV: Beyond the Sword
Sid Meier's Civilization IV: Warlords
Source SDK
Space Trader
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Team Fortress 2
12.4 hrs on record
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