GothmogIV
Adventurer
Try Mutant Crawl Classics by Goodman Games. You want irradiated gonzo chaos? Look no further!A couple years ago I played a 9 month campaign of Twilight: 2000 (the current edition from Free League). Had a lot of fun. Really like the system, which somehow manages to be relatively rules light while modeling a gritty vibe where inventory and base management matter. Quite the unicorn. I could play it forever.
Inspired by that, I bought the original Mutant Year Zero core book to scratch my Gamma World itch. Turned out to be not quite gonzo enough for that. But I again liked the system and was really struck by the campaign. Free League is doing something smart by having a default campaign integrated with each of their games.
A few weeks ago, I broke down and bought as many of the Mutant Year Zero books as I could get my hands on. About 5, I think. Hopefully I'll get to run them one day.


