I played this game with some friends, and I really like the mechanics of the game, it's really good for beginners in my opinion, but I have been wondering if I could publish Homebrew, I haven't seen Homebrew of this game and I would like to make some Homebrew and share it freely if possible, but just checking if I have permission
Check his site, it details the 3rd party license! Can't wait to see what you make.
https://sunzenaut.com/pages/3rd-party-licenses
He has also linked to free scenarios written by others: