Game Center is an App by Apple, which saves your progress in the cloud. Using Game Center allows you to recover and transfer your account to any iOS device. If you want to transfer your account to another platform you need to connect to Facebook from the in-game settings first.
How to do it?
- Go to your device settings and scroll down until you see "Game Center"
- Tap on Apple-ID
- If you already have an account, simply log in
- If you don't have an account yet, create your own, new Apple-ID (make sure you're not connected to iCloud)
- After that, go back to your Home Screen and then launch the game
If the connection was successful, you will continue your game as before!
Your game is now saved in Game Center, and you can recover it whenever you might lose it or want to transfer it to another Apple device!
Please note: Game Center supports ONE save game per account. You can't have multiple game save per device. Every game requires a unique Game Center account.