Baldur's Gate 3: How to enter the Underdark? Baldurs Gate 3 guide, walkthrough
The Underdark is one of the areas in Baldurs Gate 3 that is not easy to get into. From this guide page, you will learn about each of the ways to enter the Underdark.
Last update: 26 July 2023
While exploring the world of Baldur's Gate 3 you'll need to descend into a different realm known as the Underdark. On this page of the guide we describe all ways how to do so and how to unlock them.
Ways into the Underdark
Below we've listed all four ways to enter the Underdark:
- Shattered Sanctum - a location swarming with hostile goblins.
- Whispering Depths - home to spiders and the Dark Amethyst, an item you'll need to complete one of the main quests.
- Riverside Teahouse - a location where you'll meet Auntie Ethel.
- Zentharim Hideout - the hideout where the Zentharim mercenaries store their loot.
Shattered Sanctum
To reach the Underdark through the Shattered Sanctum, you must head to the place where you've fought Polma in the northeastern part of the area. You'll find a room with four circles on the ground - if you succeed a Passive Perception check, your characters will mention moon discs - this means you're in the right place.
You now have two options:
- You can solve the moon discs puzzle to open the gates. There are symbols on each disc - full moon, half moon and a new moon. Arrange the discs so that the northernmost disc has only full moon symbols on it, the middle ones have half moons, and the bottom one has new moons. You'll find a full description on a separate page.
- If your character knows how to Lockpick, search the room to find a round lever - it's to the right of the northern gate. You must pass a skill check with a DC of 15.
Succeeding at any of these actions opens the gate and grants access to the Underdark through the Shattered Sanctum.
Whispering Depths
The simplest way to get there. During the Search the Cellar main quest you'll find a Dark Amethyst. Next to it is a huge pit. If one of your characters knows the Featherfall spell, you can jump in to reach the Underdark.
Riverside Teahouse
To use this path, you need the Whispering Mask gained during the Save Mayrina quest. There are illusions on the way you can pass through when wearing the mask. Be careful, as during every turn you're wearing the mask, its owner will try to possess you - you must pass a Charisma saving throw.
Eventually you'll reach a room with a mushroom circle in the middle - step inside to reach the Underdark.
Zentharim Hideout
In the northern part of the area there's a wall, next to which your characters will make a Perception check. If they pass it, you'll learn the wall is illusory. Go through it and use a light spell to give yourself visibility.
There's an elevator in the cave which you must use Lockpicking on. The DC is 10. If you pass, you can now use the elevator to go down to the Underdark.