I'm very intrigued by X-Crawl, I've always enjoyed the media element in rpgs or fiction. But having D&D monsters and magic in a modern setting does seem a bit weird, though Shadowrun got away with it.
I used to play in a play-by-mail* game called Phantasmech that had a great concept - TV dungeon crawling in a cyberpunk universe. The PCs were remote controlled robots, the monsters were bigger robots and genetically modified terrors. Instead of magic items there were big guns and chainswords. There were also traps and puzzles, and you could fight the other PCs. It was really good. There were even spells, weirdly, which you could access by finding the right chips to install, these provided you with the necessary equations. So it was really D&D but with a cyberpunk/near future veneer.
*Mail was this slow paper-based thing people used before emails and text messages.