Adding local character saving

[Piesuu]

Given the fact the only way you could legitimately edit those saves would be while playing on the server, there could just be a checksum that gets saved to the server, a quick conversion of all the save data. When the player wants to load in a local save, the server simply grabs another checksum from the file and compares it to a previously saved one. It's simplified here but I would assume it wouldn't be too hard to implement, it's still saving some data but it is much less than if it was all cloud based.