Gamma World (2nd Edition)
Fantasy (Science Fantasy) Science Fiction (Post Apocalypse) Animal (Anthropomorphic)
Attribute/Stat Based (STR, CON, PER, etc) Dice (Various) Level Based (Earn XP and level up) Race Based (Player Race/Species affects gameplay) Random Attribute Generation (during Character Creation) Trait / Aspect Based (personality affects gameplay)
The second edition of Gamma World in 1983