RAM: 256MB for XPx32, 512MB for XPx64; 768MB for Vista x32, 1024MB for Vista x64
GPU: a nVidia/ATI/Intel Shader Model 1.1 compatible Graphic Card with at least 64 MB VRAM (nVidia GeForce 2 MX400; ATI Radeon 9250, Intel GMA 915 series or newer)
Sound: a DirectX 9 compatible, integrated, PCI or USB Sound Card (Note: some USB sound cards may not be supported)
HDD: 2 GB of free space
OS: Windows XP 32/64; Vista 32/64
DirectX: 9.0
Display: a 600x400 VGA/SVGA compatible display or better
《眩暈球》(Vertigo)