I just feel grateful that most of my favorite nostalgia games were DOS era, which are much easier to get and run using DOS Box.,(reply>), @Swan Rider The processing power exists my friend! Even within modern 21H 2 windows 10, you can run Microsoft own hyper V, virtual box or VMware , Just to name a few hypervisors, and spin up a virtual machine of Windows 10 itself. depending on the amount of RAM and CPU cores you have available, you can create multiple virtual machines running at the same time. Typically The hypervisor networks them together so if you had multiple monitors, you could even play co-op all driven by one computer. The sky is the limit…,(reply>), I didn't grow up with dos but there are a lot of games I wanted to play just to find out they were on dos. Dos box was a godsend. I struggle with it, because I've never known it, but still even when I struggle I want to kiss it for making so many games a possibility! As for old windows I am waiting for processing power to make it as easy...in time...