I don’t think it would be possible, because server always gets removed when there’s no players. However, there should be some kind of a function that saves everything that is on that server, but I think it’s deprecated.
just go to player ~ health I think.
Scripts like LC, USC, Sakarina (previously known as HSC/HSC Maxima (HSC MX)), UL, IL uses a fake character system or/and a client replicator system, I’ll do a quick explanation:
Client replicator system:
Basically the character isn’t at the server, but at every player’s client, the host client replicator (player executing the script) will be allowed to control the character, movement data is sent throuh remotes to the server and passed to the clients.
Fake character system:
If you haven’t noticed already, all of those scripts use a custom character instead of your own character, it works by hiding the original character somewhere else in the map, and then creating a “fake character” that you will control instead, keep in mind some of the scripts like Sakarina or USC puts the fake character on the PlayerGui using ViewportFrame and a WorldRoot (this is how their characters can somehow appear on top of guis)