Fizanthra's Guide to the Fringe - a Sci-Fi Setting Venture into the edges of the known galaxy with this sci-fi setting for the Hidden Worlds Refined Core. This setting book introduces a whole new galaxy to players in the Hidden Worlds. This is a setting book, and does require the Hidden Worlds Refined Core to play. What's in the book? Setting 100% compatible with the Hidden Worlds Refined Core - Eight new alien races, including a twist on the genetic descendants of humanity - Updated skills for the sci-fi setting - New character augmentation including: cybernetic augmentation, genetic manipulation, and artifact-based tattoos - Starships and FTL/Interstellar travel - Updated weapons, including energy-based weapons - A large portion of the known galaxy mapped out, including seven primary large empires.