Thx for that mate!
I've joined the discord as @Noriel_Sylvire
I'm now probably going to make a script for windows that makes backups of games and reloads them whenever you want.
Edit: Well, this is unfortunate, but I didn't seem to be able to find that folder... I created a new game so that there's something for the game to save there.
Edit2: I opened the folder (%localappdata%) in the command prompt as admin and there's no IIslands folder. That's odd. But it doesn't matter, I don't think many people would like to use this kind of mod, cause it's cheating.