About a year ago, I promised a friend from the West Coast that I'd run a THUNDARR-style game session during his next holiday visit. I'm setting the sandbox in his home state, since I think it would be a more exciting place than post-apocalyptic Ohio. Reference material is being mashed together from the cartoon (with many stats from Savage Afterworld), the Fallout and X-COM series of video games, plus Goblinoid Games' MUTANT FUTURE rulebook. Below is a bit of the geography altered and notated in Photoshop. Some of the things pondered while working on this:

1) Humans that have been kept safe in "vaults" are known as the Morrow Men. The populations that survived on the surface have devolved into barbarian Morlocks.

2) The techno-wizards that arrived after the Moon Disaster are the classic saucer-flying Sectoids. They turned the recovering Earth into a battlefield, creating mutant slaves and death machines. Eventually, most of them were overthrown by human commandos from secret bases in the Southwest.

3) Rad-Bugs and alien creations from the video games will be combined with the THUNDARR and MUTANT FUTURE bestiaries.

4) Thunderdome...is now Shasta Dome (built over Redding, CA)

5) The American West is no longer in contact with the East, since the Mississippi River is gigantic now, running from the Great Lakes to the Gulf. Europe and most of Asia were obliterated by the gravity-pulled debris from the Moon impact/explosion.

DISCLAIMER: I know "Project Morrow" is its own game...I just love the title. Also, please forgive any map errors, I'm not local or a vulcanologist.