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A Dungeon Diving Adventure for Levels 5-20

Dive into the dungeon shunned by all but the most daring adventurers. Known as Undermountain, this dungeon is the domain of the mad wizard Halaster Blackcloak. Long has the Mad Mage dwelt in these forlorn depths, seeding his lair with monsters, traps, and mysteries. This adventure picks up where Waterdeep: Dragon Heist leaves off, exploring the twenty-three levels of Undermountain along with the subterranean refuge of Skullport.

• Explore the 23 unique levels of the Undermountain
• Adds 75 mad monsters to use in the Encounter Builder to create & run organized battles for your party
• Uncover 16 new magical items and what they do with a click of your character sheet
• Rollable tables, detailed maps, and helpful stats to run this 256-page adventure as the dungeon master


This purchase unlocks the contents of this adventure for use with D&D Beyond, including the book in digital format in the game compendium and access options from the book in the searchable listings, character builder, and digital sheet.

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Additional Purchase Options

Magic Items

Get the 16 magic items from Waterdeep: Dungeon of the Mad Mage for use on D&D Beyond. You may also purchase individual magic items.
$5.99

Individual Purchase Items

  • Black Crystal Tablet
  • Blast Scepter
  • Chest of Preserving
  • Circlet of Human Perfection
  • Dagger of Blindsight
  • Dodecahedron of Doom
  • Helm of the Scavenger
  • Horn of the Endless Maze
  • Horned Ring
  • Orb of Gonging
  • Potion of Comprehension
  • Potion of Watchful Rest
  • Professor Orb
  • Propeller Helm
  • Shield of the Uven Rune
  • Tearulai

Monsters

Get the 75 monsters from Waterdeep: Dungeon of the Mad Mage for use on D&D Beyond. You may also purchase individual monsters.
$5.99

Individual Purchase Items

  • Animated Ballista
  • Animated Staff of Frost
  • Animated Statue
  • Animated Stove
  • Arcturia
  • Armored Troglodyte
  • Astyrranthor
  • Berlain Shadowdusk
  • Big Xorn
  • Bore Worm
  • Carrion Ogre
  • Cassiok Shadowdusk
  • Copper Stormforge
  • Crystal Golem
  • Darribeth Meltimer
  • Deformed Duergar
  • Derrion Shadowdusk
  • Dezmyr Shadowdusk
  • Drivvin Freth
  • Drow Assassin
  • Emberosa
  • Fazrian
  • Five-armed Troll
  • Gelatinous Cube (Giant Ooze variant)
  • Gorka Tharn
  • Halaster Blackcloak
  • Halfling Musician
  • Hammer-handed Golem
  • Harria Valashtar
  • Haungharassk
  • Huge Gray Ooze
  • Intelligent Black Pudding
  • Keresta Delvingstone
  • Lava Child
  • Left Hand of Manshoon
  • Living Unseen Servant
  • Mad Golem
  • Maddgoth’s Homunculus
  • Marta Moonshadow
  • Melissara Shadowdusk
  • Metal Wasp
  • Muiral
  • Mutated Drow
  • Nerozar the Defeated
  • Nester
  • Otto
  • Poison Weird
  • Preeta Kreepa
  • Scaladar
  • Shadow Assassin
  • Shadowy Duplicate
  • Shunn Shurreth
  • Stalagma Steelshadow
  • Statue of Lolth
  • Stonecloak
  • Sundeth
  • Thwad Underbrew
  • Torbit
  • Trenzia
  • Trobriand
  • Turbulence
  • Uktarl Krannoc
  • Umbraxakar
  • Undead Bulette
  • Undead Shambling Mound
  • Valtagar Steelshadow
  • Vertrand Shadowdusk
  • Violence
  • Werebat
  • Wooden Donkey
  • Wyllow
  • Zalthar Shadowdusk
  • Zorak Lightdrinker
  • Zox Clammersham
  • Zress Orlezziir

Compendium Content Only

Purchasing this bundle unlocks the Waterdeep: Dungeon of the Mad Mage book in digital format in the game compendium with all the artwork and maps, cross-linking, and tooltips.

The Compendium Content bundle does not grant access to all the content's options in the rest of the toolset, such as the searchable listings, character builder, or digital sheet.

$19.99