To save your progress, you need to do the following steps:
- Check whether you have Google Play Games (Android) or Game Center (IOS) app on your device. If not, then install it.
- Connect your game to your Google or Apple account in-game settings.
- Wait until the time of the last sync appears (under the Connected button). Progress saves every few minutes.
- Force quit the game, do not minimize it to a tray.
We also recommend not minimize it to keep it running in the background. Please note that you always need to force quit the game in each game session! Otherwise, your game session ends incorrectly, and you may lose your progress.