Steam account required for game activation and installation
PC System Requirements
MINIMUM:
OS: Windows Xp / Vista / 7
Processor: 1 GHZ
Memory: 256 MB
Graphics: 32 MB 3D
DirectX®: 9
Hard Drive: 350 MB
Sound: DirectX compatible
Mac System Requirements
MINIMUM:
OS: Mac OS X 10.5.8 or later
Processor: 1 GHZ
Memory: 256 MB
Graphics: 32 MB 3D
Hard Drive: 350 MB