I thought about this idea while loading the dishwasher, but I can't make it until there are cloud lists and a bridge between variables and lists.
The idea would be simple, every time a new user starts the program, their name is added to the list, and the name on the list would have different variables (items, health, money, etc.) if the user joins and exists on the list, the individual variables under his name would be loaded and the game would be continued.