Baldur’s Gate 3 – How to Get and Use Infernal Iron

bg3 how to get and use infernal iron

In this guide, you will learn how to get and use Infernal Iron while playing Baldur’s Gate 3.

Infernal Iron is necessary to complete Karlach’s companion quest, “The Hellion’s Heart”, to fix the engine in her chest.

Where to Find Infernal Iron – BG3

Infernal Iron

You may already have some Infernal Iron in your inventory, but there are locations in which you can find more.

Act 1

Blighted Village

Coordinates: X: -434, Y: -370

Visit the northern house to find some Shabby Wooden Doors, then destroy the Calcified Web and drop down. You will see a chest on the ground, do not open it as it contains an explosive. Instead, climb the ladder nearby. Find the Wooden chest and open it to get an Infernal Iron.

Shattered Sanctum

Coordinates: X: 292, Y: 66

Go to the Goblin Camp, then head north and open the door behind Dror Ragzlin’s seat. Find some Infernal Iron along with several other pieces of loot.

Underdark Grymforge

Coordinates: X: -662, Y: 375

Find Stonemason Kith and he will ask you to inspect the rubble. If you roll a 10 three times, speak to him again and he will give you the Infernal Iron.

Zhentarim Basement

Coordinates: X: 285, Y: -165

Go inside the locked room and open the trapped chest to find the Infernal Iron.

Act 2

Balthazar, Gauntlet of Shar

Coordinates: X: -821, Y: -752

Go to the vault room, and find Infernal Iron inside an Opulent Chest.

Reithwin Mason’s Guild

Coordinates: X: -105, Y: 18

Inside the Reithwin Mason’s Guild, you can find some on a table.

Act 3

Flymm Cargo’s Basement

Coordinates: X: -1078, Y: 312

Find Infernal Iron sitting on the floor of the basement.

Iron Throne

In the submersible dock room, find it on a table at the start of the Iron Throne.

Lower City

Kill and loot Steel Watches to farm Infernal Iron in the Lower City.


How to Use Infernal Iron – BG3

Dammon can be found in the Last Light Inn.

Item Crafting

When you provide a piece of Infernal Iron to Dammon in the Last Light Inn, he will forge the following pieces of armor (in order):

  • Flawed Helldusk Armor
  • Flawed Helldusk Helmet
  • Flawed Helldusk Gloves

Repair Karlach’s Infernal Engine

Infernal Iron is necessary to repair Karlach’s Infernal engine (The Hellion’s Heart).

Visit the Emerald Grove and speak to Dammon with Karlach in your party. Give him the Infernal Iron to repair the engine. This saves her temporarily until you meet again at Baldur’s Gate.

Warning: if you raid the Emerald Grove, you will lose the option to speak to Dammon and cannot repair Karlach’s engine.


Baldur’s Gate 3 is a role-playing game developed by Larion Studios and released in 2023 for PC, macOS, PlayStation 5, and Xbox Series X|S.

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