Minimum System Requirements
Windows
OS:
Windows Vista SP2 , Windows 7 SP1 , Windows 8
Processor:
2.4 GHz Dual Core Processor
Memory:
2 GB RAM
Graphics:
Radeon HD 3850 or GeForce 9600 GT, VRAM 512MB
Storage:
8 GB available space
Notes:
Version 9.0c; DirectX 9.0c Compatible; Min memory: 4 GB (Risen 3 64-bit)
Recommended System Requirements
Windows
OS:
Windows 7 (64-bit), Windows 8 (64-bit), Windows 10 (64-Bit)
Processor:
Intel Core i5 at 2.5 GHz or better or AMD Phenom II x4 940 at 3.0 GHz
Memory:
8 GB RAM
Graphics:
NVIDIA GeForce GTX 570 or AMD Radeon HD 5870, 1 GB VRAM
Storage:
8 GB available space
These are the requirements the publisher lists on Steam.
