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The caverns of the Underdark.

The Underdark is a Region of Faerûn, and consists of multiple locations in Act One of Baldur's Gate 3. It is a vast series of caverns and tunnels devoid of sunlight but full of dangerous creatures and even more dangerous mushrooms, but also contains a multitude of alchemical ingredients that are hard to find elsewhere. The Underdark in Baldur's Gate 3 is only a small portion of the true Underdark. The Drow, Duergar and Deep Gnomes are native to the Underdark.

Access[edit | edit source]

Due to its immense size, there are multiple access points into the Underdark from over-land. All of them involve travelling (or falling) deep into the depths of the world.

The following locations contain known access points into the Underdark:

Areas[edit | edit source]

Map of the Underdark, with the Storehouse and Minotaur Hills highlighted.

Storehouse[edit | edit source]

Main article: Storehouse.

The Storehouse is a location in the most north-eastern quadrant of the Underdark map. This area is recognisable for its aging pale wooden interior and is free of any enemies.

Enter the Underdark through this area when departing from the over-world's Zhentarim Basement.

Minotaur Hills[edit | edit source]

Considered part of the Storehouse, this unnamed area of the Underdark is recognisable thanks to its bright green grass and whimsical red mushrooms with swirling paths featuring wandering Minotaurs. This area is directly to the south of the Storehouse via the rope netting.

Map of the Underdark, with Ebonlake Grotto, Myconid Minefield, and Giant Bird Nest highlighted.

Ebonlake Grotto[edit | edit source]

Main article: Ebonlake Grotto.

The Ebonlake Grotto is recognisable for its densely packed oversized mushrooms, and roaming Myconids amidst which reside several NPCs and merchants.

Myconid Minefield[edit | edit source]

Considered part of the Ebonlake Grotto and in its south-east part, this nameless area of the Underdark is recognisable for being full of dangerous mushrooms such as Timmask and Bibberbang, which are a particularly dangerous combination with Torchstalk mushrooms that can quickly turn the area into a series of explosions.

View from within the Giant Bird Nest

Giant Bird Nest[edit | edit source]

Considered part of the Ebonlake Grotto and to its south-west, this unnamed area is an unremarkable corridor connecting Ebonlake Grotto, the Dread Hollow and the Decrepit Village. It is most recognisable for the giant bird's nest.

Map of the Underdark, with the Dread Hollow and Bibberbang Grotto highlighted.

Dread Hollow[edit | edit source]

Main article: Dread Hollow.

The Dread Hollow is a location in the north-west of the Underdark. This area is recognisable for the large and brightly shining Sussur Tree, as well as the roaming Hook Horrors and hostile wizard, Filro the Forgotton, living along its branched roots. A Bulette can also be spotted in the area.

To the south lies the tombstone of Myrna, a pet dog of Lenore.

Bibberbang Grotto[edit | edit source]

North-east of the Sussur Tree in the Dread Hollow section of the Underdark, the Bibberbang Grotto is an unnamed area of explosive and densely growing Bibberbang mushrooms, trapping Baelen Bonecloak.

The SW Quadrant of the Underdark, as seen on the map.

Arcane Tower[edit | edit source]

Main article: Arcane Tower.

The Arcane Tower is a location in the south-west corner of the Underdark map. This area is recognizable by its neatly built stone entryway that opens to a front garden featuring Arcane Cannons.

Torchstalk Gulch[edit | edit source]

Considered to be part of the Arcane Tower and to its east, this unnamed area of the Underdark is recognisable by its dark brown paths paved with deep red mushroom clusters and spots of Torchstalk that cast floating embers into the air. The corpse of an unfortunate Drow can be found, having been killed by an unexpected fall. Can be spoken to with Speak with Dead Speak with Dead, which is detailed further down.

A few mushroom circles can be found here, one of which leads to the Overgrown Tunnel.

Festering Cove[edit | edit source]

Main article: The Festering Cove.

The Festering Cove is a partially hidden location on a separate Underdark map, containing the Kuo-toa worshipping their god, BOOOAL. It can be reached by climbing down the cragged rock in Torchstalk Gulch X: 80 Y: -241.

Map of the Underdark, with the Selûnite Outpost and Battlefields highlighted.

Selûnite Outpost[edit | edit source]

Main article: Selûnite Outpost.

The Selûnite Outpost is a location in the SE corner of the Underdark map. This area is recognisable by its crumbling stone walls, grated windows, and tattered blue banners to the goddess Selûne. A statue of the goddess holds up a bright moonstone, which channels energy into the front gate's defences.

The Outpost can be reached from the Shattered Sanctum.

Ancient Battlefield[edit | edit source]

Directly north of the Selûnite Outpost, this unnamed area of the Underdark is recognisable by its field of scattered wooden barricades and long-dead skeletons of ancient fighters.

Petrified Battlefield[edit | edit source]

To the west of the Selûnite Outpost, this nameless area of the Underdark is recognisable by its purple Glowing Gems and several petrified Drow as well as one Spectator.

Map of the Underdark, with the central area highlighted.

Decrepit Village[edit | edit source]

Main article: Decrepit Village.

The Decrepit Village is the central location of the Underdark and fairly vertical. It is recognisable for its ramshackle wooden structures and rope netting enclosures.

Beach[edit | edit source]

The lowest level of the Decrepit Village, this unnamed area features a sandy beach strewn with the bodies of dead Deep Gnomes and Duergar. A boat rests at one dock, ready to take the party to Grymforge based on the story path of their choosing.

Grymforge[edit | edit source]

Main article: Grymforge.

Grymforge is an expansive and abandoned settlement location on a separate map, containing the Adamantine Forge. It is accessible via the boat at the Decrepit Village.

Regional Waypoints[edit | edit source]

The following Waypoints Waypoints are available within the Underdark.

Characters[edit | edit source]

Notable NPCs[edit | edit source]

Arcane Tower:

Decrepit Village:

Dread Hollow:

Ebonlake Grotto:

Festering Cove:

Petrified Battlefield:


Creatures[edit | edit source]

Notable loot[edit | edit source]

Quest Items[edit | edit source]

Other notable[edit | edit source]

The following loot may all be obtained in the unnamed areas of the Underdark region (additional loot is available in named locations within the Underdark) whether looted, purchased, or obtained as a quest reward: [Needs Verification]

Hidden treasure[edit | edit source]

Phalar Aluve
  • Dog Collar X: ? Y: ?: Dig up the grave in Dread Hollow South
  • Phalar Aluve X: 117 Y: -192: Pass the Strength or Religion check to free this sword from a stone
  • Buried Chest X: ? Y: ?: Pass the check to dig up this chest near the Petrified Battlefield
  • Giant Nest X: ? Y: ?: Climb the mushrooms to reach the chest contained in this Giant Bird Nest
  • Buried Wooden Chest X: ? Y: ?: Pass the check to dig up this chest near the center of the Bibberbang Grotto in Dread Hollow

Related quests[edit | edit source]

The following quests may all be found in unnamed areas of the Underdark region (additional quests are available in named locations within the Underdark):

Speak with Dead[edit | edit source]

Throughout the Underdark are a few unnamed, dead NPCs can that provide insights about the area.

Dead Drow[edit | edit source]

Located in Torchstalk Gulch, just at the foot of the mushroom platform wall leading to the Overgrown Tunnel.

Party member: Who are you?

  • Dead Drow: House Vandree... far scout... searching...
    • Party member: What where you searching for?
      • Dead Drow: Quick path... to surface...

Party member: What happened to you?

  • Dead Drow: Threw backpack... too light... fell...
    • Party member: How did throwing a backpack make you fall?
      • Dead Drow: Mushrooms... disappear... guessed wrong...

Party member: Did you have any allies nearby?

  • Dead Drow: Worked alone... better that way...

External Links[edit | edit source]