Temple of the Beastmen is a Quincon favorite, but it has been out-of-print for a while, so I think it would be a good idea to introduce it. It was designed by Frank Chadwick and Lester Smith (a Quincon guest two years ago) in 1989 for GDW.
It is set in Chadwick’s Space 1889 universe which is an early steampunk setting. Each player controls a unique character through a randomly determined temple to rescue slaves and steal some loot. The random tiles can be rooms teeming with beastmen, hidden passages, traps, stairs, etc… So in a way it is like a light SciFi version of a dungeon crawl.
This is a very cool game and fairly expensive, so you should do yourself a favor and play at Quincon next month.
Here is the game page on BoardgameGeek: Temple of the Beastmen