Game hosting as SaaS

Yeah, that's the hard part. I think it'd be optimal if you have a game which you know and play yourself and know what the community wants. In many games, installing mods means 'just' move X files to the '/mods' folder and restart the server. The issue here is that many early access, beta or alpha games have an almost weekly update schedule and it would be hard to check every mod with every version of the game-server. You could not check if mod X works with version Y of the game and let the user install mods by themselves, but that would really break the whole concept.

I think for most games you could just change the port. But I think assigning every instance just another port is not a good idea. You could do some kind of port-forwarding and do the assignment internally or a use a reverse proxy for that. I think containerizing makes that a lot easier.

I think both problems can be solved with a lot of tinkering and time ;)

My problem is that I don't know that much about this kind of scalable hosting, because I have only hosted stuff that generally doesn't need much processing power and is for a small audience, but this is all very interesting for me and I'm excited to learn more. Basically, I'm searching for a point to start.