Minimum System Requirements
Windows
OS:
Windows 7 a 8.1
Processor:
Intel Core 2 Duo
Memory:
2 GB RAM
Graphics:
Intel Graphics / 512MB VRAM
Storage:
2 GB available space
Notes:
Version 9.0c; Compatible with DirectX®: 9.0c; Warning: Laptop graphics card are not supported, but may be functional
macOS
OS:
Snow Leopard (10.6)
Processor:
Intel
Memory:
2 GB RAM
Graphics:
SM4 512MB VRAM
Storage:
2 GB available space
Linux
OS:
Linux (Most distros should work)
Processor:
Intel Core 2 Duo
Memory:
2 GB RAM
Graphics:
SM4 512MB VRAM
Storage:
2 GB available space
Recommended System Requirements
Windows
OS:
Windows 10 64bit
Processor:
Intel Core i5 2.5 GHz
Memory:
2 GB RAM
Graphics:
NVIDIA GTX 560Ti & higher / 1GB VRAM
Storage:
4 GB available space
Notes:
Version 9.0c; Broadband Internet connection; Compatible with DirectX®: 9.0c; Recommended Xbox 360® Controller for Windows
macOS
OS:
Yosemite (10.10)
Processor:
Intel Core i5
Memory:
4 GB RAM
Graphics:
SM4 1GB VRAM
Storage:
2 GB available space
Notes:
Broadband Internet connection; Recommended Xbox 360® Controller with Xinput Drivers installed
Linux
OS:
Ubuntu 14.04
Processor:
Intel Core i5
Memory:
4 GB RAM
Graphics:
SM4 1GB VRAM
Storage:
2 GB available space
Notes:
Broadband Internet connection; Recommended Xbox 360® Controller with Xinput Drivers installed
These are the requirements the publisher lists on Steam.
