Synchronizing your game account to Facebook and / or Google Play (for Android) / Game Center (for iOS) / Rise of Firstborn e-mail will secure your game data even if you lose your device.
To sync your Facebook Account, go to ""More"" -> ""Account"" then tap on ""Facebook"".
For Google Play (for Android) / Game Center (for iOS), go to ""More"" -> ""Account"" then tap on your respective device platform.
For Rise of Firstborn Email, go to ""More"" -> ""Account"" then log in to your registered e-mail account.