The other answer from @ampseandrew already covers most points, so I’ll just a few things:
Most game servers out there are already built in a way to allow for easy deployment. After all, devs have to have way to test changes, so being able to run a small server locally for debugging purposes is hugely beneficial to development.
I also can’t imagine that there’s any game server out there that shouldn’t be able to run on a single system. The heaviest one game I can imagine is Minecraft, due to the whole open world terrain generation, world streaming and physics calculations, and even that can be run off a Raspberry Pi for a small number of players.
Animal Crossing: Pocket Camp will end service in Nov 28 - but will transition to a paid offline app angielski
Source about the offline app thing: faq.ac-pocketcamp.com/…/36353725150489-What-is-th…