Windows® Windows® XP, Vista, 7 Available Disk Space: Level I - 1.1 GB Level II - 500 MB Level III - 400 MB Intel Core Duo® 1.8GHz, AMD Athlon® 64 X2 4200+ processor (or equivalent) 512 MB RAM (1 GB Recommended) 256 MB VRAM (512 Recommended) CD-ROM drive and speakers 1024x768 screen resolution or higher

Macintosh® Mac® OSX 10.5 or higher Available Disk Space: Level I - 1.1 GB Level II - 500 MB Level III - 400 MB Intel Core Duo® 2.66GHz processor (or equivalent) 512MB of RAM (2 GB Recommended) 256 MB VRAM (512 Recommended) CD-ROM drive and speakers 1024x768 screen resolution or higher