What is Gamma World, the role playing game?
Gamma World was made by TSR, same as the original Dungeons and Dragons. Featured a post-apocalyptic world where a past nuclear war contaminated much of the world with radiation, producing mutant monsters of all sorts. Characters could be ‘pure’ human, mutant-human, or mutant animal or even plant. Game mechanics were very similar to D&D. I played the first edition of the game but never any of the later editions.