Please make sure to save your game with your Game Center or Google Play account!
Have you saved your game with Game Center or Google Play yet?
If you play without connecting your account to Game Center or Google Play, you might lose all your progress.
If you lose or change your device without having saved the game, you may lose your game progress irrevocably.
There are no means to recover lost game data, so please make sure you connect to Game Center or Google Play before you start playing.