You can actually source the original images (of course after post processing, just the section that is used on the cards) from the original pdf!
The pdf is practically just a bunch of images layered on top of eachother
The message contains a link: https://alfredvalley.itch.io/brute-fort-bonus
However it requires a password. I've looked through brief spectrogram analysis of all of the tracks and haven't found anything but i might need to look harder in dungeon drone. Other than that i haven't seen anything in the manual or PNP sheets.
(edit: upon further inspection nothing else seems to be hiding in the soundtrack itself, password must be elsewhere)
So, i've finished the game and i was kinda stuck at one point. (where i literally had to install a QR code reader)
The ending is kinda creepy because the AI apparendly doesn't know about human anathomy. Amazing idea.
The game closes on it's own at the end of the sessions, and it does save, so no problem there.
Well working game, interesting, but kinda short gameplay. I'd hive it 7/10