If you have previously saved your profile with your Google Play account, simply choose that account once you start the game or login in the settings menu.*
If you uninstall the game, factory reset your device or change devices without having saved your account, you will not be able to retrieve it.
In the case you change devices but still have the old one with Rumble League installed, simply load the game there and link your account when prompted at the start or in the settings menu. After that you can load the game in the new device, with your Google Play credentials and it should load without a problem.*
*Please note we don't currently support cross-platform sync (Android <-> iOS) so you will only be able to load your profile in a device of the same OS as your old one.
This feature only saves one account and does not support multiple accounts.
If you have any issues recovering your account, feel free to contact our support team.