Users who own this game also own:

Portal 2
Portal 2
Portal
Portal
Left 4 Dead 2
Left 4 Dead 2
Fallout
Fallout
Half-Life 2: Episode Two
Half-Life 2: Episode Two

Users who love this game also love:

Tenchu 2: Birth of the Stealth Assassins
Tenchu 2: Birth of the Stealth Assassins
Prince of Persia 2: The Shadow and the Flame
Prince of Persia 2: The Shadow and the Flame
Flashback
Flashback
Tenchu: Stealth Assassins
Tenchu: Stealth Assassins
Maniac Mansion: Day of the Tentacle
Maniac Mansion: Day of the Tentacle