The Gamma World 3e RPG released in 1986, and the rules were completely changed from the prior GW iterations. I’ll quote my own RPG reference site: Where 1st and 2nd editions were loosely based on D&D, 3rd edition adapted the Universal Table from Marvel Super Heroes RPG, except for Gamma World 3e it’s called the Action Table (ACT). … Continue reading GAMMA WORLD 3rd edition (1986-87): ACT Table Rules, Mutated Plants and Tech V devices