As you slowly venture through mysterious and unexplored lands, you'll run into a charming welcoming comity that consists of the following new enemy types: Harpy, Azer, Demilich, Demonflesh Golem, Mithral Golem, Beholder, Drider, Mind Flayer, Spider Demon, and many others. Actually, there's 16 innovative opponents altogether, so it's safe to say you'll have your hands full. Some beings you'll encounter are quite ruthless. For instance, the Drow and Mind Flayers live in a society based on enslavement - in a certain level you'll be able to witness a slave auction. A lot of info on all of these creatures can be found on Bioware's official Hordes of the Underdark web site (http://nwn.bioware.com/underdark/creatures.html). The creative team at Bioware appeared to have put a solid effort into making each creature unique in appearance (a big hand goes to the artists for that one). In addition to that, all monsters and NPC's will react according to their improved AI routines. Fighting them, however, doesn't necessarily have to be a solo endeavor. Should you desire some company during quests, you may seek assistance by hiring two henchmen. This signifies a slight progress from the original, where you were allowed to recruit only one henchman at a time.