In order for you to play Lord of Rigel on Windows with minimal graphics settings, your computer must meet the following requirements
OS *:
Windows Vista / 7 / 8
Processor (CPU):
Quad-core Intel or AMD processor, 2.5 GHz or faster
Memory (RAM):
8 GB RAM
Graphics Card:
NVIDIA GeForce 470 GTX or AMD Radeon 6870 HD series card or higher
DirectX:
Version 9.0c
Storage:
5 GB available space
Sound Card:
DirectX 9 Compatible Audio
In order to play Lord of Rigel on Windows with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
Windows 10 64-bit
Processor (CPU):
3.5 Ghz Intel Core i5 or equivalent
Memory (RAM):
16 GB RAM
Graphics Card:
NVIDIA GeForce GTX 970
DirectX:
Version 9.0c
Storage:
5 GB available space
Sound Card:
DirectX 9 Compatible Audio