Minimum System Requirements
Windows
OS:
Windows XP SP3
Processor:
Intel(R) Core(TM)2 Duo 2.4, AMD Athlon(TM) X2 2.8 Ghz
Memory:
2 GB RAM
Graphics:
Geforce 9600 GS, Radeon HD4000, Shader Model 3.0, 512 MB
Storage:
5 GB available space
Notes:
Version 9.0c; DirectX compatible; If you are on or around the min spec then you may need to run with Half Res Textures and Low graphics options and at a lower resolution.
macOS
OS:
OSX 10.9 or Higher
Processor:
Intel(R) Core(TM)2 Duo 2.4, AMD Athlon(TM) X2 2.8 Ghz
Memory:
2 GB RAM
Graphics:
Geforce 9600 GS, Radeon HD4000, Shader Model 3.0, 512 MB
Notes:
Integrated; If you are on or around the min spec then you may need to run with Half Res Textures and Low graphics options and at a lower resolution.
Linux
Processor:
Intel(R) Core(TM)2 Duo 2.4, AMD Athlon(TM) X2 2.8 Ghz
Memory:
2 GB RAM
Graphics:
Geforce 9600 GS, Radeon HD4000, Shader Model 3.0, 512 MB
Storage:
5 GB available space
Notes:
Integrated; If you are on or around the min spec then you may need to run with Half Res Textures and Low graphics options and at a lower resolution.
Recommended System Requirements
Windows
OS:
Windows 7 or later
Processor:
Intel Quad Core i5 @ 2.5 GHz (or AMD equivalent)
Memory:
3 GB RAM
Graphics:
NVIDIA GeForce GTX 670+
Storage:
5 GB available space
Notes:
Version 11
These are the requirements the publisher lists on Steam.