Call of Duty: Modern Warfare 2 - Multiplayer
14.7 hrs last two weeks / 59.4 hrs on record
Bioshock
14.8 hrs on record
Call of Duty 4: Modern Warfare
Call of Duty: Modern Warfare 2
7.6 hrs on record
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Counter-Strike
Counter-Strike: Source
Day of Defeat
Day of Defeat: Source
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Deathmatch Classic
F.E.A.R. 2: Project Origin
8 hrs on record
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 Deathmatch: Source
Infernal
Killing Floor
16.3 hrs on record
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Killing Floor Mod: Defence Alliance 2
Killing Floor SDK
Left 4 Dead
8.5 hrs on record
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Left 4 Dead Authoring Tools
Peggle Deluxe
Portal
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Ricochet
Source SDK
Team Fortress 2
132.1 hrs on record
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