Co-operative multiplayer game and complete code base available for free.
Developer: Valve
Publisher: Valve
Genres: Action Free To Play
Tags: Action Adventure Aliens Class-Based Co-op Free to Play Moddable Multiplayer Online Co-Op PvE Sci-fi Shooter Singleplayer Strategy Survival Team-Based Third Person Third-Person Shooter Top-Down Top-Down Shooter
Release Date: July 19, 2010
Reviews: 21399 (Very Positive)
Price: Free
Platforms: Windows
Languages: English
Steam Achievements: 66
Metacritic Score: 77
Categories: Adjustable Difficulty Camera Comfort Captions available Co-op Color Alternatives Custom Volume Controls Includes level editor Multi-player Single-player Stats Steam Achievements Steam Cloud Stereo Sound Surround Sound
AppID: 630 (game) - 10 Screenshots, 2 Videos on store page.
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