In order for you to play Fireball Wizard on Windows with minimal graphics settings, your computer must meet the following requirements
OS *:
Windows 7 (SP1+) and Windows 10
Processor (CPU):
x86, x64 architecture with SSE2 instruction set support.
Memory (RAM):
1 GB RAM
Graphics Card:
DX10, DX11, DX12 capable.
Storage:
1 GB available space