I love 5e D&D. I love fiends. I love how twisted Robert Schwalb is. This is the first time I’ve backed something on Gameon Tabletop, which is a platform specifically made for crowdfunding tabletop games.
The 3rd edition Book of Fiends had some great content, some of which was foundational to what Paizo did with the lower planes in Pathfinder, once they couldn’t use the specific setup for the lower planes as it appeared in D&D.