How would one install SPT v3.8.3 instead of v3.9.0 at this date?
I'm trying to get it to run on a friend's computer, but as OP pointed out the link is 404, and I don't see a way to force install v3.8.3 on the latest or previous installers. I get an "access denied" error on SPT's website when trying to access the downgrader patch page.