In order for you to play ORB on Windows with minimal graphics settings, your computer must meet the following requirements
OS *:
Windows 95/98/ME/2000/XP
Processor (CPU):
PIII / Athlon 600 MHz or higher
Memory (RAM):
128 MB RAM
Graphics Card:
3D Video Card w/ 16 MB VRAM
DirectX:
Version 8.1
Storage:
500 MB available space
Sound Card:
DirectX compatible Sound Card