Yayıncılar
Valve
Platformlar
PC
Xbox
Android
Apple Macintosh
Linux
Yapımcılar
Valve Software, NVIDIA Lightspeed Studios
Türleri
Action, Shooter
Etiketler
Captions available, Includes Source SDK, Aliens, Partial Controller Support, Steam Achievements, Steam Cloud, Atmospheric, Classic, Dystopian, First-Person, FPS, Great Soundtrack, Horror, Moddable, Multiplayer, Physics, Sci-fi, Silent Protagonist, Singleplayer, Story Rich, Zombies, steam-trading-cards
