When you click new game, a backup is created in %localappdata%/ufo50nonograms/nonoSaveBackup.ufo . There is also an “are you sure” prompt when you click it, but if it wasn’t there, please do let me know
thanks! so i deleted nonoSave.ufo and renamed nonoSaveBackup.ufo to nonoSave.ufo but it didn’t bring back my progress, i’m honestly not even sure i clicked “new game” i just remember opening the game one day and losing progress, i definitely don’t remember any “are you sure” prompt. idk might be on my end! i have no idea lol