Make sure to save in-game progress with Google Play!
Please note that Google Play only supports one game per account! If others would like to start a new game on your device, they must save it to a separate Google Play account. Warning: using the same Google Play for more than one account will result in lost progress!
What does "same Google Play for more than one account" mean in the above context?
What does "same google play for more than one account" mean in above context ?
This means that Google Play acts as a save account location. You can only save 1 game on your Google Account, usually an @gmail.com address. If you wanted to share the device and have them play separately you will need a second Google Play account. This will prevent losing save files as they are separately stored by Google based on account.