In order for you to play Afterdream on Windows with minimal graphics settings, your computer must meet the following requirements
OS *:
Windows 7 or later
Processor (CPU):
Dual Core 2.0 GHz
Memory (RAM):
4 GB RAM
Graphics Card:
4GB card capable of shader 3.0
DirectX:
Version 9.0
Storage:
500 MB available space
Sound Card:
DirectX 9c Compliant