Additional information

Genres
Platform
Languages
Regional limitations	3

Windows

OS: Windows XP (SP3)

Processor: 2.5 GHz (Single Core) or 2 GHz (Dual Core)

Memory: 1 GB RAM

Graphics: OpenGL 2.0 compatible with 256 MB RAM, Shader Model 2.0 Support (Shared Memory is not recommended)

DirectX: Version 9.0c

Hard Drive: 1700 MB available space

Sound Card: DirectX 9.0c compatible

Mac

OS: Lion (10.7)

Processor: 2 GHz (Dual Core) Intel

Memory: 1 GB RAM

Graphics: OpenGL 2.0 compatible with 256 MB RAM, Shader Model 2.0 Support (Shared Memory is not recommended)

Hard Drive: 1800 MB available space

Go to: http://store.steampowered.com/ and download STEAM client

Click "Install Steam" (from the upper right corner)

Install and start application, login with your Account name and Password (create one if you don't have).

Please follow these instructions to activate a new retail purchase on Steam:

Launch Steam and log into your Steam account.
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process.

After successful code verification go to the "MY GAMES" tab and start downloading.