Any idea if there is something I can do to the files to make them save?
Viewing post in Submachine Complete Collection comments
I emailed Mateusz himself and he gave me these instructions:
" right click on the game [as in on the game window after launching], go to settings and find local storage there. enable some, 1 Mb is more than enough. exit, restart the game, should work."
(brackets are additional context)
I tested it myself, it works.