Left 4 Dead
21.1 hrs last two weeks / 175.7 hrs on record
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Team Fortress 2
3.2 hrs last two weeks / 143.7 hrs on record
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Day of Defeat: Source
2.2 hrs last two weeks / 42.9 hrs on record
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Half-Life 2
0.3 hrs last two weeks / 8.3 hrs on record
Bioshock
3.1 hrs on record
Condition Zero
0.6 hrs on record
Condition Zero Deleted Scenes
Counter-Strike
3.4 hrs on record
Counter-Strike: Source
Day of Defeat
4.4 hrs on record
Deathmatch Classic
0.1 hrs on record
Half-Life
1.9 hrs on record
Half-Life 2: Deathmatch
0.8 hrs on record
Half-Life 2: Episode One
Half-Life 2: Episode Two
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Half-Life 2: Lost Coast
0.5 hrs on record
Half-Life: Blue Shift
3.1 hrs on record
Half-Life: Opposing Force
1.5 hrs on record
Half-Life: Source
3.9 hrs on record
Half-Life Deathmatch: Source
Left 4 Dead Authoring Tools
Portal
6.9 hrs on record
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Ricochet
Source SDK
