Alright.
You mention the code is open, yet I can not find any link to said code (I checked your patreon, blog, and itch.io page all), nor is it included with the .zip.
The world map editing looks like it'd be amazing as a standalone tool for other purposes (personal interest would be tabletop RPG world map design for homebrew campaigns) if the generated maps could be higher resolution (and maybe optionally stylized tho that can be handled by other tools).
Though I suppose that is unlikely to happen. Still, I wanted to express interest in such, as what I saw of how this works was very inspiring.
Got an error while playing v1.7: https://pastebin.com/BDSKpj1n
Seems to be just missing hunter_angry.png file
Game installed via Itch.io client, if that matters.
Update: This seems to be avoidable if I choose different graphic style than the default Old.