MUTANT: YEAR ZERO - AD ASTRA - RPG HARDCOVER BOOK - Ad Astra is a thrilling campaign module for Mutant: Year Zero that takes the player characters from the devastated surface of Earth into orbit, out into the solar system, and perhaps further still. Ad Astra can be played stand-alone or as a direct continuation of the Path to Eden campaign in the Mutant: Year Zero core rulebook. The book also includes rules for playing Mutant: Year Zero in space and an overview of the solar system with ideas for further adventures.