Yayıncılar
Valve
Platformlar
PC
Apple Macintosh
Linux
Yapımcılar
Valve Software
Türleri
Action
Etiketler
Includes Source SDK, Atmospheric, Valve Anti-Cheat enabled, Competitive, Co-op, First-Person, FPS, Free to Play, Funny, Multiplayer, Physics, Sci-fi, cooperative