Gamma World is the post-apocalyptic RPG made by TSR, and part of the iconic TSR boxed sets that include such other notable games of Boot Hill, Gangbusters, and Star Frontiers. The game is set in the mid-25th century, more than a century after a second nuclear war had destroyed human civilization. The game allows you to make mutant human and animals that forage the world looking for artifacts that will bring them status and prestige.