The most reliable way to unlock everything without losing your existing progress is to modify the STSPlayer and STSUnlocks files. You will need a third-party file manager like or ZArchiver to access the hidden folders.
Android’s cloud saving can be finicky. If you modify your files and the game doesn't show the changes, the app and clear the cache (but not the data!). This forces the game to reload the local preference files you just edited. slay the spire android unlock everything
Occasionally, Android updates can wipe save data; knowing how to edit these files is the only way to get your progress back. A Quick Warning on Cloud Saves The most reliable way to unlock everything without