A few folks here have mentioned possible solutions, and I hope they work. Unfortunately Google has killed ADB backup as a solution, presumable to force more people into their proprietary backup systems. I don’t have any specific plans for it yet but at some point I’ll probably provide a way to export/import save data from within the game itself. I worry that such a system will make cheating very easy though, even if I don’t allow exporting runs in progress.

Try ADB backup? I’m using stock android on my devices with magisk added so I use Swift backup when I want to backup my game data. I think you can also escalate privileges for some backup apps using ADB as well, try googling “no root android backup ADB” and see what comes up.

If I remember, I might be able to check up the code to see where PD stores your stuff

Go into settings, system, backup. GrapheneOS has a built-in backup provider that can use USB drives.

This uses the same mechanism as a Google Backup, just without Google servers.

you don’t need to root to use adb and you can root as long as you aren’t going to relock the bootloader

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