itch.io

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.

I just followed your example and found the same thing. Weird thing is: This collection doesn't save, but the original HD versions I bought way back when DO save progress. I know it's down to the Flash cookies on that end, but makes me wonder how this collection works.

Unfortunately I was not able to locate the issue because the whole executable was removed when Kaspersky tagged it as infectious. I think I'll just wait until your master program is in a better state - I saw your latest update. Best of luck to you!

Note to developer: I purchased this game today, but the .exe file had a virus on it when I opened it - to the point that one of my antiviruses failed until I restarted.