Forge & Mead

key-item

Withered bone

Bonemass summon item.

Field note

When it matters

Collect ten from crypts before boss prep.

Valheim swamp hut interior with a cauldron and candles
Swamp runs should be treated as prepared expeditions: poison resistance, food, portal safety, and iron goals.Official Valheim press screenshot, used with guide commentary.

Item flow

Withered bone unlock path

SourceSwamp
key-itemWithered bone
UnlockBonemass summon
Priorityhigh
Best useCollect ten from crypts before boss prep.
Use this flow to understand where Withered bone enters progression and why it matters before crafting everything else.

How to get it

Loot sunken crypts.

Unlocks or supports

  • +Bonemass summon