From the back of the box: Step into GAMMA WORLD Science Fiction Role-Playing Game from TSR Hobbies, Inc. GAMMA WORLD Science Fiction Role-Playing Game is a complete adventure game for 2 or more players and a Game Master set against the backdrop of an imaginary future America. Based on one of TSR's most popular games, this edition includes expanded mutation, equipment and NPC descriptions, rewritten and reorganized basic rules and a full set of previously-unpublished campaign rules. Inside this box you'll find: - A 22" x 34" full-color mapsheet containing three beautiful maps used in play. - A 64-page Basic Rules Booklet containing everything you need to know to go adventuring in the Gamma World. - A 32-page Adventure Booklet containing a complete adventure to get you started and step-by-step instructions for designing your own adventures and campaigns. - A set of 6 dice. Note: Deborah Ritchie is credited as Deborah C. Ritchie