Valheim

Valheim Ectoplasm Guide: Where to Farm It and What It Crafts

Valheim·September 15, 2025·6 min read

Patch 0.221.4, also known as Call to Arms, has officially graduated from the public test beta in Valheim. The update brings a handful of tweaks and one fresh resource that has the community curious: ectoplasm. Below is what it is, how to farm it, and what you can build once you have a small pile of the stuff.

Where Ectoplasm Comes From

Ectoplasm drops from ghosts, the wispy spirits that appear during the "You feel a chill down your spine..." event. The catch: this event only triggers after you have defeated Bonemass, the third boss in the game. No Bonemass kill, no ghosts, no ectoplasm.

Beating Bonemass First

Bosses in Valheim do not wander the map looking for trouble. You have to summon them, and Bonemass is no exception. His altar, called the Forsaken Altar, sits somewhere in the Swamp biome and looks like an enormous green skull with glowing liquid bubbling in its mouth. Subtle, it is not.

To summon him, place ten Withered Bones on the altar. You can pull these from:

  • Muddy scrap piles inside the Sunken Crypts
  • Chests scattered through the Swamp biome

Once Bonemass is down, random world events gain the chance to spawn ghosts. Hunt them, and ectoplasm follows.

What You Can Build With It

For now, ectoplasm has exactly one use: the T.W.I.G., a combat dummy that lives at your base and quietly absorbs your worst sword swings without filing a complaint.

The crafting recipe:

  • Ectoplasm x5
  • Firewood x5
  • Bronze Nails x10

Hitting a T.W.I.G. raises your skill levels for weapons, blocking, and dodging without the minor inconvenience of dying. It is also a clean way to bring friends or late joiners on your Valheim dedicated server up to speed between real expeditions, so nobody arrives at the next raid still swinging like a beginner.

That covers every current use for ectoplasm. The recipe list will almost certainly grow in future patches, so it is worth stockpiling a bit while the ghosts are still in the mood to show up.

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