Minimum system requirements:
CPU:Intel 2.4 GHz Core 2 Duo, AMD 2.6 GHz Athlon X2
RAM:4 GB RAM
GPU:AMD Radeon HD 3870 512Mb or better, NVIDIA GeForce 8800 GT 512 Mb or better, Intel HD 4000 integrated 512Mb or better
DX:Version 11
OS:Windows XP, Windows Vista (SP2), Windows 7
STO:6000 MB available space
Sound:Yes
Recommended system requirements:
CPU:Intel Core i5 4440 3.1 GHz/AMD FX 8350 4GHz
RAM:12 GB RAM
GPU:GeForce GTX 960/AMD Radeon R9 380
DX:Version 11
OS:Windows XP, Windows Vista (SP2), Windows 7 (Recommended is Windows 8.1 64-bit)
STO:6000 MB available space
Sound:Yes