An updated version of Prosperon: A Bio-Cyberpunk—the full core rulebook—is now available on Drive Thru RPG a Bio-Cyberpunk RPG.

The main core rulebook will also be available for sale on itch.io starting March 1st, 2026, so keep an eye out!

That said, you can still grab the free rule set right here on itch.io, along with the free DLC Return of the Tyzntharian—a standalone packed with lore to help you experience Prosperon before human habitation.

I've been working on something called hidden branches of synometry-a way to add more potent abilities to the synometry list. Seeking out this hidden synometric knowledge won’t be easy, and you may need to connect with a hidden practitioner of the synometric arts. That said, it should be released here in a few days.

Thank you all for the support. We’re so much closer to earning our bronze award for the book! We’ll continue to support it through to completion—you have our word.

Wishing everyone a blessed evening.