Hey Mathak,

I posted this on the thread I made, but here's what I found. It's not a fun fix, but worth a try if you have the spare hard drive space.

I still don't actually know what the issue was, but I decided to try creating a new partition and instance of Windows, and the game worked just fine there. I also noticed something weird where, when trying to install a past gpu driver that I know the game worked on, it wouldn't install because 'my version of Windows was not compatible', but I'm on Windows 10 Pro, so something with my install of Windows must have gotten corrupted. I have since reinstalled Windows on my main partition and have the game up and running.