OS: Microsoft Windows® XP with Service Pack 1 and Vista Processor: 2.0 GHz Intel Pentium® 4 or equivalent Memory: 512 MB RAM (768 MB RAM for Vista) Graphics: 128 MB Video Card, with support for Pixel Shader 2.0 DirectX®: The latest version of DirectX 9.0c or higher Hard Drive: At least 4 GB of hard drive space, with at least 1 GB additional space for creations For computers using built-in graphics chipsets under Windows, the game requires at least: Intel Integrated Chipset, 945GM or above 2.6 GHz Pentium D CPU, or 1.8 GHz Core 2 Duo, or equivalent 768 MB RAM