I want to install save data from the previous version, but why can't I? And can you add more Indonesian?
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How do I update my progress on PC/Android?
On PC you don't have to worry about anything, just download the newest version, run the game and saves should be there.
On Android, don't delete the previous version of the game. Download the newest version, when installing choose to update the game. Enter the game and saves should be there!