dieselpunk

Etymology

diesel + -punk

noun

1. A genre of science fiction and art that combines fictional retrofuturistic elements with the technology, culture, and aesthetics of the period of history beginning in the interbellum between World War I and World War II and ending around the 1950s (known as the "diesel era" within the dieselpunk community).
   In other words, steampunk explores adjustment to an industrial culture from the opposite direction to cyberpunk -- but has very much the same agenda. Me, I'm trying to write dieselpunk ... November 20 2002, Charlie Stross, “Re: What "steampunk" genre?”, in rec.arts.sf.written (Usenet)
   […] post-apocalyptic dieselpunk action adventure […] 2007, Sean Demory, quoted in Brian McTavish, "Kansas City writer, artist publish digital comic book for cell phones", in The Kansas City Star, 2007 July 25, page F3
   BioShock isn't steampunk, it's dieselpunk. March 19 2010, Teresa Lott, “Re: I hate steampunk...”, in rec.arts.sf.written (Usenet)