SlaughterGrid

From the publisher's website: Created by genocidal halflings aeons ago, SlaughterGrid is a strange and gruesome dungeon, avoided by all save the bravest or most foolhardy of adventurers. This module features: An 18-area mini-hexcrawl to start you off 3 levels and 55 encounter areas Weird treasure and magic items 32 new monsters, including stygiacs, gold-whores, progenitors, and necro-otyughs Rules for treasure, thieving abilities, schemes, and weaponized monsters