It works now. If anybody else has this issue, try going to your account and clicking on the steam link. I think that refreshed it for me.

After checking that my account was linked to steam, the link shows up now. Lets see if this download will run it.

I just figured that out. But in my case, I have Space Age on steam, not through the website. So I can't use that link. It just asks me to purchase it.

Alright this is getting ridiculous. I cannot get a Space Age existing save (started localhost from my pc) to work on a WINDOWS headless server. I am using the factorio.com/download windows zip stable 2.0.21. That zip DOES NOT come with space age "mods". When I port those mods and mod list into the ...