In order for you to play Osmos on Windows with minimal graphics settings, your computer must meet the following requirements
OS *:
Windows XP or Vista
Processor (CPU):
1 GHz
Memory (RAM):
512 MB RAM
Graphics Card:
3D graphics card with OpenGL support. Minimum resolution 800x600
DirectX®:
N/A (OpenGL)
Hard Drive:
33 Mb
Sound:
definitely :)