Your User ID is your single unique 8 digit number that you are assigned once starting a new game. You can change your player name but your User ID will remain the same. This can also be used as a secondary way of logging in instead of putting in your username.
- Have you ever wondered about why people say you can hack Uridium by texting (Big ########)? That's because it helps them get Uridium by tricking you into buying Uridium for them, not you. The number differs and so does all the UserId's. Do you get what I am saying now? It's a fake.