jfaulken: The title says it all. Would love to give you guys some more money. :)
The strange part is there's a Mac version on Steam, but not GOG.
EDIT: I see these two versions (Windows, Linux) on itch.io as well, there with the note "NOTICE: This version is no longer maintained. The game is available on Steam here: .. "
The devlog simply says "Since its super complicated to maintain multiple pages, I decided to move the changelog & updates to steam!" I guess the vast majority of sales were on Steam :-( I get it, Indie developers can get spread too thin sometimes. I just prefer to buy on GOG when I can.