Users who own this game also own:

Half-Life 2
Half-Life 2
Half-Life
Half-Life
Deus Ex
Deus Ex
Diablo II
Diablo II
Half-Life 2: Episode One
Half-Life 2: Episode One

Users who love this game also love:

Portal
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Starcraft: Brood War
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Warcraft III: Reign of Chaos
Warcraft III: Reign of Chaos