Left 4 Dead 2
24 hrs last two weeks / 29 hrs on record
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Serious Sam HD: The First Encounter
1 hrs last two weeks / 1 hrs on record
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Counter-Strike
Day of Defeat
Deathmatch Classic
Half-Life
Half-Life 2
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
0 hrs on record
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Left 4 Dead 2 Demo
Left 4 Dead Authoring Tools
Portal
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Red Faction
1 hrs on record
Red Faction: Guerrilla
Ricochet
Section 8
8 hrs on record
Source SDK
Team Fortress 2
117 hrs on record
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