Bonemass
Knochenwanst
At a glance
Bonemass is a boss encounter. Review the summoning requirements alongside its attacks and damage modifiers before committing your supplies.
Recorded in: Swamp. Follow a biome to see the other creatures and resources listed there.
The recorded offering is 10 × Withered bone. The summoning section contains the available requirements.
The recorded weaknesses are Blunt and Frost. Compare them with your weapon’s damage types; the attack table describes outgoing damage, not vulnerabilities.
- Order
- 3
- Health
- 5,000
- Weak to
- Blunt, Frost
- Resists
- Slash, Pierce, Fire, Poison
Summoning
10× Withered bone
Offering at the altar, from the second source only.
Drops
| Name | Amount | Chance |
|---|---|---|
| Wishbone | 1 | 100% |
| Bonemass trophy | 1 | 100% |
Attacks
| Attack | Damage |
|---|---|
| poison | 130 Poison |
| punch | 80 Blunt1000 Chop1000 Pickaxe50 Poison |
Damage taken
- Blunt
- weak
- Slash
- resistant
- Pierce
- very resistant
- Fire
- very resistant
- Frost
- weak
- Lightning
- normal
- Poison
- immune
- Spirit
- normal
Green: takes extra damage. Orange: takes less or none.
Forsaken power
- Duration (s)
- 300
- Cooldown (s)
- 1,200
- Block stamina
- -1
- Block stamina (flat)
- -5
Star levels
| Stars | Health | Damage |
|---|---|---|
| – | 5,000 | 1× |
| ★ | 10,000 | 1.5× |
| ★★ | 15,000 | 2× |
Each star adds the base health once and 50 % damage; player count and world modifiers also apply.
Trophy
Bonemass trophyData stand: Valheim 1.0.16 (assumed, no build marker). Values can differ in your game.