Left 4 Dead
10.6 hrs last two weeks / 38.7 hrs on record
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Counter-Strike: Source
9.1 hrs last two weeks / 13.8 hrs on record
Team Fortress 2
8.1 hrs last two weeks / 29.9 hrs on record
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Condition Zero
2.1 hrs on record
Condition Zero Deleted Scenes
0.1 hrs on record
Counter-Strike
4.1 hrs on record
Day of Defeat
Day of Defeat: Source
0.3 hrs on record
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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
Left 4 Dead Authoring Tools
Portal
1.9 hrs on record
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Ricochet
Source SDK
