adamantine forge bg3
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Adamantine Forge BG3

The Adamantine Forge is a secret location in BG3, that can help you create a few powerful items for your character in Act 1! To find the Adamantine Forge you will have to travel to the Underdark part of the map and find the forge’s location in the Grymforge area. The Forge is an important location in the first Act of the game that offers a great opportunity to strengthen your character and be better equipped for what is to follow in Baldur’s Gate 3 story.

Table of Contents

adamantine forge bg3
Adamantine Forge Location

Where to Find the Adamantine Forge in BG3

You can find the Adamantine Forge in the Grymforge area, in Underdark! To access Grymforge you need first to descend into the Underdark, then locate the Underdark Beach area. In the Beach you can use the Duergar Boat to reach Grymforge. Once you reach Grymforge activate the Waypoint nearby, then go up the stairs and head North on the map until you find a group of Duergars with Rothe animals in front of a blocked passage. Negotiate with the Duergar and decide how you wish to deal with them. Convince the animals to clear the path or kill the Duergars and blow up the rocks blocking the way with explosives.

Grymforge Blocked Passage

After you clear the rocks, proceed in the new area and use the first ladder on your left where you will find a set of Levers. You can use these Levers to lower and move closer to the other side the Platform nearby. Get your party on the platform and hit the levers with a ranged attack to activate them. When you jump on the other side do not forget to grab the Longsword Mould, which is necessary if you wish to craft a Longsword at the forge!

adamantine forge bg3
First Platform

Follow the path to the end to find a second platform and another set of Levers. Get on the platform and interact from distance with the new Levers to approach a new area. There is another Mould you can pick up there, near the Levers. When you get closer, jump to the new area to activate the Ancient Forge Waypoint!

Second Platform

The Adamantine Forge is near the Waypoint and you can easily reach it by descending the stairs nearby. Before you go there though, search the area around you in order to collect all Moulds(there are six in total) and Mithril Ore! There are two veins of Mithril nearby that if you attack, drop Mithril Ore. You will need one Ore and One Mould to create an item in the forge. There are also a few enemies in the area that you will have to defeat in order to proceed.

adamantine forge bg3
Mithril Vein

How to activate the Adamantine Forge in Baldur’s Gate 3

Once you have the Moulds you want and at least one Mithril Ore, you can descend to the Adamantine Forge area. Open the Mould Chamber and place the Mould of your Choice, then place a Mithril Ore in the Crucible. Use the Forge Lever to drop the Forge to the lowest level. To craft the item of your choice you also need to flood the area with Lava by using the Lava Valve. Once the place is filled with Lava you can use again the Forge Lever to craft your desired item! However when you flood the area with Lava for the first time, Grym, the Forge’s Guardian will appear and Battle will begin!

Grym of the Adamantine Forge

How to Defeat Grym of the Adamantine Forge in BG3

Grym is a level 10 Construct with 300 HP, that is almost invulnerable to every type of damage! However when Grym steps into Lava, becomes vulnerable to Bludgeoning damage. The strategy to defeat Grym is pretty simple. Keep your support character near the Lava Valve so there is always Lava in the area. Equip your strongest character(s) with Bludgeoning weapons(Warhammer, Mace etc) and stay close to Grym dealing damage. Keep your main attacker alive with heals and support spells until Grym is dead.

Another way you can kill Grym is by using the Forge Hammer in the center of the room. Lure Grym toward the center and have one character to interact with the Forge Lever. This will drop the Hammer on Grymm and deal massive damage. Repeat this until Grym is dead. Defeating Grym with the first method, without using the Forge Hammer, will also unlock the “A Grym Fate” Achievement! When you kill Grym you can also loot the Grymskull Helm. A Very Rare Heavy Armor Helmet that grants Resistance to Fire damage, makes it imposible for attackers to land Critical Hits on the wearer and offers access to the Hunter’s Mark Spell!

adamantine forge bg3
Grymskull Helm

Adamantine Forge Items in Baldur’s Gate 3

There are six in total items you can craft in the Adamantine Forge! Thee Weapons, One Shield and Two Armors. The Items you can craft here are:

  • Adamantine Longsword
  • Adamantine Mace
  • Adamantine Scimitar
  • Adamantine Shield
  • Adamantine Scale Mail
  • Adamantine Splint Armour

Adamantine Longsword in BG3

The Adamantine Longsword is a Two-Handed Weapon with the Versatile feature, which means that you can use it with both hands or with one hand only. It offers 1d10(2Hands) or 1d8(one Hand) damage and the following Traits:

  • Diamondbane – If an adamantine weapon hits an object, the hit is always critical.
  • Lethal Weapon – This Weapon ignores Resistance to Slashing damage.
Adamantine Longsword

Adamantine Mace in BG3

The Adamantine Mace is an One Hand Weapon that offers 1d6 damage and the following Traits:

  • Diamondbane – If an adamantine weapon hits an object, the hit is always critical.
  • Lethal Weapon – This Weapon ignores Bludgeoning Resistance.
Adamantine Mace

Adamantine Scimitar in BG3

The Adamantine Scimitar is also an One Hand Weapon with the Light and Finesse features. Light means that you can use it with off hand as well, while Finesse means that can use Dexterity for attacks! It offers 1d6 damage and the following Traits:

  • Diamondbane – If an adamantine weapon hits an object, the hit is always critical.
  • Lethal Weapon – This Weapon ignores Resistance to Slashing damage.

Adamantine Shield in BG3

The Adamantine Shield is an off hand weapon item with +2 Armour Class and offers the following:

  • Adamantine Shield – When a melee attack misses you, the attacker is sent Reeling for 2 turns.
  • Shield Bash – When a foe hits you with a melee attack, you can use your reaction to knock it Prone unless they succeed a Dexterity Saving Throw.
  • Attackers cannot land Critical Hits on the wearer.
Adamantine Shield

Adamantine Scale Mail in BG3

The Adamantine Scale Mail is a Very Rare Medium Armour with 16 Armour Class that offers the following:

  • Magical Plate – All incoming damage is reduced by 1.
  • Adamantine Backlash – When a melee attack hits you, the attacker is sent Reeling for 2 turns.
  • Disadvantage on Stealth Checks.
  • Attackers cannot land Critical Hits on the wearer.
adamantine forge bg3
Adamantine Scale Mail

Adamantine Splint Armour in BG3

The Adamantine Splint Armour is a Very Rare Heavy Armor with 18 Armour Class that offers the following:

  • Magical Plate – All incoming damage is reduced by 2.
  • Intense Adamantine Backlash – When a melee attack hits you, the attacker is sent Reeling for 3 turns.
  • Disadvantage on Stealth Checks.
  • Attackers cannot land Critical Hits on the wearer.
adamantine forge bg3
Adamantine Splint Armour

What is the Best Item to Craft at the Adamantine Forge in BG3

The Best Item to craft with the Adamantine Forge is the Adamantine Scale Mail or the Adamantine Splint Armour. Both are Very Rare items that can enhance the survivability of your character and prepare you for the rest of the story in Baldur’s Gate 3. Since you can only craft two items per run(there are only two Mithril Ores around) it is better to craft the two armors and equip your best medium and heavy armor wearer with them. The Shield is also a nice option that you can craft alone or combine with the Mace if your character is proficient with it. The Longsword and Scimitar are nice weapons to have but you will soon find better ones to replace them.

Adamantine Forge Items Tier List

This is the Tier List for the Adamantine Forge Items you can craft in Baldur’s Gate 3:

  1. Adamantine Scale Mail
  2. Adamantine Splint Armour
  3. Adamantine Shield
  4. Adamantine Mace
  5. Adamantine Longsword
  6. Adamantine Scimitar

FAQ – Adamantine Forge

What is the Best Thing to Make at the Adamantine Forge in BG3?

The Best Items to craft at the Adamantine Forge in BG3 is the Adamantine Scale Mail Armour and the Adamantine Splint Armour.

What is the Best Mould for the Adamantine Forge in BG3?

The Best Mould for the Adamantine Forge in BG3 is the Scale Mail Mould or Splint Mould. The Shield Mould is another good option.

How many Items can you make at the Adamantine Forge in BG3?

You can only craft two items with the Adamantine Forge in BG3, since there are only two Mithril Ores available around.

Is the Adamantine Forge Important in BG3?

The Adamantine Forge in BG3 offers you the opportunity to create a few great items for your characters early in the game, which makes it an important discovery!

How Do I Get to the Adamantine Forge in Baldur’s Gate 3?

All the required steps to reach the Adamantine Forge in Baldur’s Gate 3!

  1. Find the Duergar Boat in Underdark Beach.

    Descend to Underdark, head to the Beach area and use the Duergar Boat there to reach Grymforge.

  2. Clear the Blocked Passage in Grymforge.

    Use the stairs near the Grymforge Waypoint and head North to the Blocked passage. Negotiate with the Duergar and Rothe there to clear the passage or kill everyone and open the path with explosives.

  3. Follow the new path and use the 2 Sets of levers to move the platforms and reach the Ancient Forge area and Waypoint.

    Follow the new path, get your party on the platform and interact with the levers to move closer to the other areas. Do the same for the next set of levers. When close to the new area, jump to unlock the Ancient Forge Waypoint.adamantine forge bg3

  4. Descend the Stairs to reach the Forge.

    From the Ancient Forge Waypoint, go South and descend the stairs to reach the Forge.adamantine forge bg3

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