In order for you to play Black Jewel on Windows with minimal graphics settings, your computer must meet the following requirements
OS *:
Windows 7
Processor (CPU):
Intel Core i5-4440 (or equivalent)
Memory (RAM):
2 GB RAM
Graphics Card:
nVidia 320M or higher, or Radeon 7000 or higher, or Intel HD 3000 or higher
DirectX:
Version 9.0
Storage:
15 MB available space