The core rulebook of the official Maddrax RPG (Maddrax: Reloaded). Contains some information on the Maddrax universe, rules for character creation, combat, travelling and the like.
The chapter on gamemastering contains a simplistic random scenario generator that requires two 2d6 rolls to generate a one-sentence plot hook like "A horde of cannibals strives for political power." or "A mysterious witch recruits an army with unknown intentions."
This rulebook was enclosed with issue #200 from the Maddrax series of dime novels and has not been published individually.