Left 4 Dead 2
11.6 hrs last two weeks / 46.2 hrs on record
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Counter-Strike: Source
3.9 hrs last two weeks / 352.1 hrs on record
Zen of Sudoku
0.3 hrs last two weeks / 0.3 hrs on record
Bioshock
Half-Life 2
Half-Life 2: Deathmatch
Half-Life 2: Episode One
Half-Life 2: Episode Two
1.2 hrs on record
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Half-Life 2: Lost Coast
Half-Life Deathmatch: Source
Left 4 Dead
194 hrs on record
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Left 4 Dead Authoring Tools
Source SDK
STALKER: Shadow of Chernobyl
Team Fortress 2
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