Metamorphosis Alpha
A sci-fi game set on a 30-mile long generation starship (""The Warden"") gone awry. A radiation storm causes mutations to occur to its occupants creating outlandish mutated humans and animals. The concept was wandering around the interior encountering strange creatures in a dungeon-like way -- including many concepts that would later surface in Gamma World. The second edition in 1994 was a universe book of this setting for the Amazing Engine game system. The third and fourth edition use their own system¸ referred to as the 3d6 system. Resolution uses a universal table of attribute with difficulty to find a target number for a 3d6 roll. Combat also uses a table that compares weapon class number (from 21 to 3) and armor class number (from 21 to 2). Character creation is primarily random roll¸ with varying rules for robots¸ androids¸ and humans. - A description from https://darkshire.net/jhkim/rpg/encyclopedia/ with kind permission of John H. Kim