Memorial Coal: Drops and Ancient Altar Use

Memorial Coal is a material tied to Deep North progression. You obtain it from Krigen in Mörkhalla, and its main role is summoning Fallen Warriors. Use this page alongside the Deep North guide and the item catalog.

Quick facts

How to obtain

1. Unlock Mörkhalla with an Intricate Key and descend through the dungeon.
2. Defeat Krigen while controlling the room rather than pulling another group into the fight.
3. Loot Memorial Coal and reserve it for an Ancient Altar summon.

What it's used for

• Collect it while clearing Mörkhalla.
• Offer it at an Ancient Altar.
• Defeat the Fallen Warrior for Frostfire Essence or Thunderblood Essence.

Building an altar loop

Memorial Coal can drop from Krigen and can also be recovered from features around Mörkhalla. It is a progression offering rather than ordinary smelter fuel, so keep it out of the same chest as normal Coal.

Take three Memorial Coal to an Ancient Altar at a Memorial Site. The offering summons a Fallen Warrior. Defeating that enemy gives a chance at Frostfire Essence or Thunderblood Essence, which support the two optional elemental weapon routes.

Clear the altar area and place a nearby portal before spending the coal. A failed fight costs time and may leave the summon guarding the site. Because the essence drop is chance-based, collect more than one offering set during repeated Mörkhalla runs.

Frequently asked questions

How much Memorial Coal does an altar use?

Offer three pieces at an Ancient Altar to summon one Fallen Warrior.

Can ordinary Coal replace it?

No. Memorial Coal is a separate offering item and should not be used as smelter fuel.

Common mistakes

• Feeding Memorial Coal to a normal fuel slot because it resembles ordinary Coal.
• Carrying fewer than three pieces to the altar.
• Summoning a Fallen Warrior before clearing nearby creatures or establishing a portal.

Group the coal into sets of three as it enters storage. One set equals one altar fight, which makes the number of available attempts obvious. If the desired essence does not drop, the offering still completed normally; collect another set during later Mörkhalla clears and try again.

Memorial Coal has no role in the Strange Bowl or the Sacrificial Stones. Those interactions use Malicious Blood and Sacrificial Blood respectively. Keeping all three progression items in labeled chests avoids taking the wrong offering on a long portal or sailing route.

Documentation status

Iron Gate's 1.0 notes confirm the named content; exact quantities and route details here are included where current hands-on guides and game-data references agree.

Sources

Sources: Official Valheim 1.0 notes, Valheim.tools game-data guide, Beebom guide, Valheim.tools 1.0 database update, Valheim.tools memorial coal item data.