Minimum System Requirements
Windows
OS:
Windows Vista SP2, Windows 7, Windows 8
Processor:
2 GHz Dual Core CPU
Memory:
4 GB RAM
Graphics:
GeForce 400 or higher, AMD Radeon HD 4000 or higher, Intel HD 4000 or higher (DirectX 11 hardware support required)
Storage:
4 GB available space
Notes:
Version 11; DirectX compatible
macOS
OS:
OSX 10.9
Processor:
2 GHz Dual Core CPU
Memory:
4 GB RAM
Graphics:
GeForce 400 or higher, AMD Radeon HD 4000 or higher, Intel HD 4000 or higher
Storage:
4 GB available space
Linux
OS:
Ubuntu/SteamOS (latest)
Processor:
2 GHz Dual Core CPU
Memory:
4 GB RAM
Graphics:
GeForce 400 or higher, AMD Radeon HD 4000 or higher, Intel HD 4000 or higher
Storage:
4 GB available space
Recommended System Requirements
Windows
OS:
Windows 7 (64 bit), Windows 8 (64 bit)
Processor:
2.5 GHz Quad Core CPU
Memory:
8 GB RAM
Graphics:
GeForce 500 or higher, AMD Radeon HD 5000 or higher
Storage:
4 GB available space
Notes:
Version 11; Broadband Internet connection
macOS
Processor:
2.5 GHz Quad Core CPU
Memory:
8 GB RAM
Graphics:
GeForce 500 or higher, AMD Radeon HD 5000 or higher
Storage:
4 GB available space
Linux
Processor:
2.5 GHz Quad Core CPU
Memory:
8 GB RAM
Graphics:
GeForce 500 or higher, AMD Radeon HD 5000 or higher
Storage:
4 GB available space
These are the requirements the publisher lists on Steam.
