Hand of the Demon is our next major project in development. It’s going to be mostly a rules supplement for creating characters with demonic body parts grafted onto them (not necessarily hands) and maybe 40% a campaign that you can run involving grafted characters.
It’s inspired by Corum and the Hand of Kwll, first edition Hand (and Eye) of Veccna (which was pretty much a rip-off of Corum) and Claw the Unconquered comic books. To a lesser extent, also the teeth of Dahlver-nar from first edition,
Essentially there’s a literary tradition of monster-handed heroes’ that’s largely gone unmentioned in modern RPG games. So paNik is mentioning it.