• This game is under the Fantasy, Medieval & Action/Adventure genres.
  • The game system is Dungeons & Dragons 5e.
  • This game contains mature content.
Undermountain, dungeon of the mad mage
Waterdeep: dungeon of the mad mage is a mega-dungeon adventure book from Wizards of the Coast for Dungeons & dragons 5e. The player characters are currently level 6, and the game potentially goes up to level 20. It's deadly in places, tho not as deadly as the infamous Tomb of horrors.

It's set in the mad mage Halaster Blackcloak's dungeon called Undermountain, which is under the city of Waterdeep.