if your pc can run itchio it can probably run this game
There actually is a bare minimum hardware to run itch.io, if you can believe it. This right here is the minimal IBM PC configuration that can open this website:
Motherboard: [VIA K8T800 Pro] Asus A8V Deluxe
CPU: [Socket 939] AMD Athlon 4000+
GPU: [AGP 8X] ATI Radeon X800 Platinum Edition
RAM: 1 GB DDR UDIMM
Storage: 20 MB of free hard drive or SSD storage space
This is far beyond what the earliest IBM PCs had, which is what I want to support.