MINIMUM:
OS: Windows 7
Processor: 2 GHz, SSE2 support
Memory: 1024 MB RAM
Graphics: OpenGL 2.1-compatible, 512 MB video memory, framebuffer object support. E.g. Intel HD 4600 or better.
Storage: 350 MB available space
Additional Notes: You may need to update your graphics drivers for OpenGL 2.1 support.
RECOMMENDED:
Processor: 2 GHz dual-core
Graphics: Geforce GTX 660 / Radeon 7870 or better.