
Be your own teammates in this unique single-player co-op shooter!

Unlocked Experiment mode for Episode 1

Unlocked Experiment mode for Episode 2

Unlocked Experiment mode for Episode 3

Get 100% on Episode 1

Get 100% on Episode 2

Get 100% on Episode 3

Record a Let's Replay on any Episode

Complete a Let's Replay on any Episode
Minimum OS *: Windows XP / Vista / Windows 7 / Windows 8 Processor: 2.0 GHz or higher Memory: 2 GB RAM Graphics: DirectX 9 or OpenGL 3 compatible video card DirectX: Version 9.0 Storage: 1 GB available space
Minimum OS: OSX 10.6 + Processor: 2.0 GHz or better Memory: 2 GB RAM Graphics: OpenGL 3 compatible video card Storage: 1 GB available space
Minimum OS: Ububtu 12.04 LTS Processor: 2.0 GHz or better Memory: 2 GB RAM Graphics: DirectX D10 or OpenGL 3 compatible video card Storage: 1 GB available space