Weitere Bezugsquellen für Bücher und Rollenspielprodukte sind die Rollenspiel-Händler Tellurian, NewWorlds,
The fearsome Scarlet Knights of Genetic Purity have declared a campaign of terror against all mutants -- humanoids and mutated animals!! Your bitter enemies¸ the Gray Rock tribe¸ have accused your tribe¸ the White Feathers¸ of murder and treachery. Your tribe is now under sentence of death -- you and your party have been declared outlaws and traitors. The fate of your tribe lies in your hands. Pursued by an enraged mob of mutants¸ you must flee across the frozen Parklands of the Ancients [Yellowstone] to find proof of your innocence. This campaign module contains Gamemaster notes¸ background information¸ maps¸ new creatures¸ new artifacts¸ a new robot¸ and four bonus campaign scenarios for use with the revised Gamma World Science Fantasy Role-Playing Game. Included in this adventure is a new player aid -- the Ranger Ruler!! The Range Ruler simplifies combat with weapons and mutational powers.