FOR WINDOWS XP
* 2.0 GHz P4 processor or equivalent
* 1 GB RAM
* 128 MB Video Card with support for Pixel Shader 2.0
* The latest version of DirectX 9.0c
* Microsoft Windows XP Service Pack 2
* At least 6.1 GB of hard drive space with at least 1 GB of additional space for custom content and saved games
FOR WINDOWS VISTA
* 2.4 GHz P4 processor or equivalent
* 1.5 GB RAM
* 128 MB Video Card with support for Pixel Shader 2.0
* Microsoft Windows Vista Service Pack 1
* At least 6.1 GB of hard drive space with at least 1 GB of additional space for custom content and saved games