Dieselpunk is a subgenre that draws inspiration from the interwar period (1920s to 1950s) and the aesthetics of diesel-powered machinery. It’s a mix of the Art Deco era, World War II, and speculative technology, often portraying an alternate history with advanced diesel-powered technology. Dieselpunk can include themes of war, espionage, and adventure, with an emphasis on retro-futurism that incorporates elements like steam engines, sleek automobiles, and vintage fashion.