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The Ruins of Undermountain is a 160-page sourcebook for Advanced Dungeons & Dragons 2nd edition released in February 1991.

Official synopsis[]

BRAVE THE RUINS

UNDERMOUNTAIN awaits you: the fabled and feared battleground of the Realms - "The Deepest Dungeon of them all"

DARE YOU FACE?miles upon miles of deadly traps, glittering treasures, strange and cryptic rooms, and slithering, skulking, lurking monsters? They await you underneath Waterdeep!

UNDERMOUNTAIN is a dungeon setting for AD&D 2nd Edition campaign play: the oldest, largest, and deadliest dungeon-crawl in the Forgotten Realms campaign setting. It is the place where intrepid adventurers endeavor to become veterans, to win a place among the rich and famous - if they survive its depths. Enter an endless maze where waiting death bears a thousand faces and treasures lie hidden in a thousand places.

It's just the setting for long running, memorable, great AD&D game play, the perfect locale you'll never forget. So please, come in. Mind your step among the skulls. Oh, yes - good luck - you'll be needing it.

The Ruins of Undermountain campaign set includes:

A 128-page book describing Undermountain, its history, its horrors, and details of the first three levels of the dungeon;

a 32-page adventure book for use exclusively with Undermountain and Waterdeep;

Four full-color maps of the vast and dangerous dungeon and;

Eight new monsters.

Content[]

Development and release[]

Development[]

The book was written by Ed Greenwood. Art was provided by Brom and Karl Waller.

Release[]

The Ruins of Undermountain was released by TSR in February 1991 for $[missing data] US or $[missing data] Canadian.

On August 22, 2017, it was re-released in digital format. It is currently available on DriveThruRPG and Dungeon Masters Guild for $7.99.

Reception and influence[]

Critical reception[]

As of 2023, The Ruins of Undermountain reached the rank of Platinum seller on DriveThruRPG.

Influence on other works[]

External links[]

References[]


Advanced Dungeons & Dragons 2nd edition
Core rules
Player's HandbookDungeon Master Guide
Monstrous Compendium Volume OneMonstrous Compendium Volume TwoMonstrous Manual
First QuestIntroduction to Advanced Dungeons & Dragons GameThe Complete Starter SetDungeons & Dragons Adventure Game
Optional core rules
Player's Option: Combat & TacticsPlayer's Option: Skills & PowersPlayer's Option: Spells & Magic
Dungeon Master Option: High-Level CampaignsCampaign Option: Council of Wyrms
Supplement lines
Player's Handbook Rules SupplementDungeon Master's Guide Rules Supplement
Monstrous Compendium AppendixMonstrous Compendium Annual
Encyclopedia MagicaHistorical ReferenceThe Magic EncyclopediaMonstrous ArcanaPriest's Spell CompendiumWizard's Spell Compendium
Other supplements
Bastion of FaithBook of ArtifactsCastle SitesChronomancerCity SitesCollege of WizardryCountry SitesDen of ThievesDungeon Builder's GuidebookGuide to HellLegends & LoreRogues' GalleryShamanTome of MagicThe Vortex of Madness and Other Planar PerilsWarriors of HeavenWorld Builder's Guidebook
Adventures
The Apocalypse StoneAxe of the Dwarvish LordsCleric's Challenge (II) • The Dancing Hut of Baba YagaDestiny of KingsDie Vecna Die!Dragon MountainDungeons of DespairFighter's Challenge (II) • The Gates of Firestorm PeakA Hero's TaleLabyrinth of MadnessThe Lost Shrine of BundushaturMoonlight MadnessThe Murky DeepNight Below: An Underdark CampaignA Paladin in HellReturn to the Tomb of HorrorsReverse DungeonRoad to DangerThe Rod of Seven PartsThe Shattered CircleThe Silver KeySwamplightTale of the CometTales of EnchantmentTemple, Tower, & TombThief's Challenge (II) • TSR Jam 1999Wizard's Challenge (II)
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