Really enjoying the game, but my save game keeps being overwritten, which looks like a bug. I'm playing from GEM/TOS using the Hatari emulator on Mac.
I collect the fish, quit the game and exit the emulator. Then the first time I restart the "continue game" option is present and I can carry on, but if I restart again (without collecting a new fish) the option to continue is absent. The carndata.bin save file seems to have been updated (modification time changed). Backing up the save file is a work around.
Could you investigate?