The Pulp alley Forum may be a good start for a dungeon crawl.
http://pulpalley.com/index.phpI'd try 2 humans V PA game. Where a loose truce between the human players sees their characters delving into the dungeon.
-let the cards and chance decide what you're up against
- each human has 2 characters, a sidekick and a follower
I'd probably play the plot points as big monsters, or locked treasure chests which need cracking
I'd make each 'room' a perilous area, with the cards deciding how many monsters (1-3) are in each room, and every corner sees the chance for players to play unseen perils on eachother.
Just some quick thoughts from me, not that I have done it.
Cheers
Matt