Electronic Arts, Valve

Valve Software

Action, Shooter

Captions available, Commentary available, Full controller support, Includes Source SDK, Steam Achievements, Steam Cloud, Steam Leaderboards, Atmospheric, Valve Anti-Cheat enabled, Competitive, Co-op, Female Protagonist, First-Person, FPS, Horror, Moddable, Multiplayer, Online Co-Op, Post-apocalyptic, Replay Value, Singleplayer, Survival, Tactical, Team-Based, Zombies, cooperative, stats