Official source summary; unverified details marked 待确认
01
The filesystem path has not been verified
The collected material contains save-location searches, not a tested directory. It does not establish the exact Windows path or save-file extension. A Steam Deck compatibility-folder path was not verified either. This page therefore does not guess a directory from another game’s engine or developer name.
There is also no tested backup, restore or Steam Cloud conflict procedure. A path that sounds plausible is not sufficient evidence for file instructions. Those operations remain 待确认. No deletion or overwrite step is supplied as a confirmed fix.
02
Three save slots are officially documented
An earlier official update adds three save files and a save-slot switcher. The developer says there is no delete button in that switching interface. The reset option remains at the bottom of Settings in the announcement. This is a description of the documented interface, not a recommendation to reset progress.
The announcement mentions family use as a reason for multiple slots. It does not identify the corresponding files on disk. It also does not establish how those slots interact with every cloud-sync state. Those filesystem and synchronization details remain 待确认.
03
Achievement recovery has a specific scope
The game has a Recover Save from Achievements option in Settings according to official notes. Version 1.0 updates it to recover Estelle the Astromancer as well. That establishes one named recovery improvement. It does not prove the feature reconstructs every run, card, item or setting.
An earlier save-system update also says playing Endless Mode or Enigma Sanctum no longer interrupts campaign progress. That concerns in-game progress handling rather than the directory location. Full recovery coverage and a tested corrupted-save workflow were not collected. The useful confirmed information is limited to the named feature and documented slot behavior.
Questions
What players ask
Where is the exact save folder?
待确认. The supplied research did not verify a Windows or Steam Deck filesystem path, so this page does not invent one.