In May of ’82, D&D had made it far enough into the mainstream that it made the pages of Heavy Metal magazine who ran a few column inches of overview of RPGs and Wargames of the early 80’s – with more emphasis on the Mechanoid Invasion (Palladium) and Chiton* (Metagaming) than on Dungeons & Dragons (although D&D gets the nod as the most popular of these new RPGs).
But at the bottom of the page was this cartoon. Obviously one of the players in the D&D group rolled up his character for Gamma World instead.
* Heck, I’ve never even heard of Chiton. I don’t think it even existed after a brief scurry through google.
** And I have totally asked the DM if I was allowed to build a hotel in the dungeon or if I needed to get the monopoly on dungeons with that theme first.