In order for you to play Spiral Knights on Windows with minimal graphics settings, your computer must meet the following requirements
OS *:
Windows XP, Vista or 7
Processor (CPU):
1.3ghz processor
Memory (RAM):
512MB for Windows XP or 1GB for Windows Vista/7
Graphics Card:
64MB Video Memory. GeForce 5 series, ATI Radeon 8500. Latest video driver.
Display:
1024x600
DirectX®:
Hard Drive:
700MB
Java:
Version 1.6