What is "unisystem"

Unisystem is a generic role-playing game system produced by Eden Studios, Inc. It is used in All Flesh Must Be Eaten, the Buffyverse role-playing games, CJ Carella's WitchCraft, Conspiracy X (2nd Ed.), and several other games. Games designed using Unisystem have been nominated for, and won, Origins Awards.

Unisystem was developed by C.J. Carella for the first editions of his WitchCraft and Armageddon role-playing games, published by Myrmidion Press. Eden Studios uses Unisystem under an exclusive license, but has allowed other game companies to license the system. Eden Studios published WitchCraft 2nd Edition and their original All Flesh Must Be Eaten games as Unisystem games. Armageddon 2nd Edition and a new 2nd Edition of Eden's own Conspiracy X were later published using this gaming system.