Minimum Requirements

• PC

• OS: Windows XP, Vista, 7

• Processor: 1.25GHz AMD Athlon or Intel equivalent

• Memory: 1GB

• Graphics: 128MB Video Card (GeForce4 or equivalent card)

• DirectX®: DirectX® 9 or above

• Sound: DirectX® 9.0c-compliant sound card

• Other Requirements: Internet connection required

• Mac

• OS: OS X version 10.6 or later.

• Processor: 1.83GHz Intel Core Duo or better

• Memory: 1GB

• Graphics: Nvidia Geforce 8600, Radeon X1600 or better

• SteamOS

• OS: Major Linux Distributions from 2010

• Processor: 2Ghz CPU

• Memory: 1GB

• Graphics: OpenGL 2.1 capable graphics card

• Hard Drive: 3GB

• Other Requirements: Internet connection required