Where to Find Infernal Iron in BG3 Act One

Posted on 16 August 2026 | 51
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Navigating the expansive wilderness of Baldur's Gate 3 frequently requires players to gather rare crafting materials to progress companion storylines. Among the most valuable resources in the early game is Infernal Iron, a strange otherworldly metal tethered to the Nine Hells. Finding this resource during the first act is essential for repairing Karlach's volatile internal engine and unlocking powerful armor upgrades.

The Blacksmith Cellar in the Blighted Village

Your first opportunity to secure this rare material usually points toward the ruined settlement known as the Blighted Village. Inside the abandoned blacksmith's workshop, players will discover a wooden hatch leading down into a dusty cellar space. You must lockpick or find the key to a heavily guarded chest positioned behind a structural wooden ladder.

Opening this specific container yields a piece of the rare forge material alongside various crafting blueprints left behind by the previous occupant. Players should be careful to disarm any traps nearby to avoid taking sudden explosive damage. Securing this early sample allows you to begin planning out your companions' personal upgrades ahead of schedule.

The Hidden Treasury of the Shattered Sanctum

Another reliable location to search for this rare substance rests deep within the heart of the Goblin Camp. Adventurers must infiltrate the innermost chambers of the Shattered Sanctum where the leadership holds their meetings. The private treasury of Dror Ragzlin is situated directly behind his grand throne room area.

Accessing this secure vault requires you to either pick a highly complex lock or pickpocket the key directly from the goblin warlord's body. Inside the massive treasure hoard, you will find a wealth of gold pieces, magic items, and another vital ingot of iron. This discovery provides the necessary resource volume to progress companion interactions before moving onward.

The Subterranean Vaults of Grymforge

As you venture deeper into the subterranean passages of the Underdark, the search shifts toward the ancient structure of Grymforge. This volcanic zone features numerous historical ruins that date back to ancient dark justiciar conflicts. Players will encounter a group of deep gnome laborers and duergar masons investigating the local architecture.

By speaking with the master mason named Kith and succeeding on historical observation checks, you can earn a piece of the metal as a reward. Alternatively, defeating the local threats and thoroughly looting the upper iron scaffoldings will reveal additional hidden resources. This area serves as the final primary location to maximize your inventory before transitioning into the shadow-cursed lands.