High Quality Content by WIKIPEDIA articles! Neverwinter Nights: Hordes of the Underdark is an expansion pack for the role-playing video game Neverwinter Nights produced by BioWare and published by Infogrames Entertainment (now Atari). The followup to the Shadows of Undrentide expansion, Hordes of the Underdark introduces a new campaign, six new prestige classes: Champion of Torm, Dwarven Defender, Pale Master, Red Dragon Disciple, Shifter, and Weapon Master; and other new features such as the ability to hire two henchman at once and the increase of the maximum attainable character level from 20 to 40. The Windows version also includes new scripting options for the Aurora toolkit.