Team Fortress 2
2.5 hrs last two weeks / 102.1 hrs on record
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Counter-Strike: Source
1.3 hrs last two weeks / 14.4 hrs on record
Day of Defeat: Source
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Garry's Mod
7.9 hrs on record
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Half-Life
0.8 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
Killing Floor
5.8 hrs on record
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Killing Floor Mod: Defence Alliance 2
Killing Floor SDK
Left 4 Dead
131 hrs on record
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Left 4 Dead 2
28.3 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
Portal
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Source SDK
Spore
4.4 hrs on record
Spore: Creepy and Cute Parts Pack
1.4 hrs on record
Spore: Galactic Adventures
