Android users can log in with Facebook and Google Play.
Apple users can log in with Facebook, Game Center, or Apple (Only available for iOS 13+).
Huawei users will automatically bind with your Huawei account.
You can still bind your Facebook account after binding your Google Play, Game Center or Apple (Only available for iOS 13+) account to the game.
Binding your Facebook account lets you log into the game on different devices.
If you don't select a platform when you first log into the game, you will get a local guest account by default for character creation and game records.