The best and easiest way to transfer your game progress from one Android device to another is to connect your game to Google Play.
To connect to Google Play:
- Open the Google Play Store on your phone
- Search for and install “Google Play Games” on your device
- Open Google Play Games app and create an account or login if you already have one
- Open the Tacticus app
- Tap on the Settings icon in top left corner
- Tap on ‘Connect’ (green button)
- The app will automatically try to connect to Google Play Games with your logged in account
When you play on the new device simply open the game, go to the settings menu and log into Google Play to retrieve all your progress.