Steam account required for game activation and installation
- Supported OS: [Mac Mountain Lion 10.8, Mac Lion 10.7]
- Processor: Core 2 Duo or Better (2ghz or faster)
- RAM: 1500 MB
- Hard Disk: 900 MB
- Video Card: NVidia/ATI Dedicated Graphics (Integrated Intel Graphics not supported)
Explore 20 unique and atmospheric environments on a vast and treacherous planet.
Follow a mysterious young woman as she guides you past dangerous terrain and deadly life-forms.
Investigate the startling discovery of an abandoned Russian town.
Experience an exciting and intriguing story through rich graphics and cinematic cut-scenes.