In order for you to play GemCraft - Chasing Shadows on Windows with minimal graphics settings, your computer must meet the following requirements
OS *:
Windows Vista SP1
Processor (CPU):
Intel Celeron N or better
Memory (RAM):
2048 MB RAM
Graphics Card:
Intel HD Graphics or better
Storage:
100 MB available space
In order to play GemCraft - Chasing Shadows on Windows with maximum graphics settings, you need a computer with a configuration no worse than the following
OS *:
Windows 7/8
Processor (CPU):
Intel Core i3 or better
Memory (RAM):
4096 MB RAM
Graphics Card:
Radeon HD / Geforce GTX grade graphics card
Storage:
100 MB available space