Valheim Swamp | Valheim Wiki

Everything the world generator does in the Swamp: which creatures spawn and under what conditions, which structures generate, and what you can carry out of it.
The Swamp in numbers
11 creatures can spawn here and 20 kinds of structure generate here. Its boss is Bonemass at 5000 health, summoned at an altar somewhere in this biome.
7 of them only appear at night: Charred Marksman, Charred Warrior, Skeleton, Draugr Elite, Oozer. 3 actively hunt you rather than waiting to be found: Charred Marksman, Charred Warrior, Seeker.
Reading the Swamp numbers
- 11 spawn rules and 20 structure types apply here. Spawn rules keep rolling while you play; structures are placed once, when the world is made.
- 4 of the spawn rules here are gated behind a boss flag, so this biome is not fully populated on a fresh world.
- Spawn chance, tries per world and what they do and do not promise are explained once on the all-biomes page.
Creatures
| Creature | Spawn chance | Group | Max alive | When | Weak to | Gated |
|---|---|---|---|---|---|---|
| Abomination | 35% | 1 | 1 | day and night | fire | — |
| Blob | 20% | 1–2 | 2 | day and night | blunt, frost, lightning | — |
| Charred Marksman | 5% | 1–3 | 3 | night only | spirit | after you kill Fader |
| Charred Warrior | 5% | 1–3 | 3 | night only | spirit | after you kill Fader |
| Draugr | 50% | 1–2 | 4 | day and night | — | — |
| Draugr Elite | 5% | 1 | 1 | night only | — | — |
| Leech | 50% | 1 | 10 | day and night | — | — |
| Oozer | 20% | 1 | 1 | night only | blunt, frost, lightning | — |
| Seeker | 5% | 3 | 2 | night only | — | after you kill The Queen |
| Skeleton | 25% | 1–3 | 3 | night only | blunt, fire | after you kill Bonemass |
| Wraith | 30% | 1 | 2 | night only | fire, spirit | — |
Structures generated here
| Structure | Layouts | Tries per world | Unique | Min spacing |
|---|---|---|---|---|
| Infested tree | 1 layout | 700 | — | 0 m |
| Swamp hut | 5 layouts | 225 | — | 128 m |
| Grave | 1 layout | 200 | — | 0 m |
| Sunken crypt | 1 layout | 175 | — | 64 m |
| Runestone | 2 layouts | 150 | — | 128 m |
| Ship wreck | 4 layouts | 100 | — | 1024 m |
| Fire hole | 1 layout | 75 | — | 16 m |
| Swamp ruin | 2 layouts | 60 | — | 256 m |
| Swamp well | 1 layout | 25 | — | 1024 m |
| Hildir's camp | 1 layout | 10 | one per world | 1000 m |
| Bonemass's altar | 1 layout | 5 | — | 3000 m |
Resources placed here
| Placed here | Per zone | Altitude band |
|---|---|---|
| Rock | 0–20 | -1000–1000 m |
| Mudpile | 0–5 | 0.5–1000 m |
| Vfx | 10–10 | -5–5 m |
| Fir tree | 60–60 | 0.5–1000 m |
| Swamp tree | 40–40 | -0.5–1000 m |
| Swamp tree | 10–20 | -0.5–1000 m |
| Swamp tree | 1–3 | -0.5–1000 m |
| Flies | 20–20 | 0–1000 m |
| Tree stumps | 4–4 | 0–1000 m |
| Statue evil | 2–2 | 0–1000 m |
| Fir tree | 6–6 | -1–1000 m |
| Shrub | 20–20 | 0–1000 m |
| Thistle | 1–2 | 0–1000 m |
| Mushrooms | 1–2 | 1–1000 m |
| Fallen branches | 15–15 | 0–1000 m |
| Loose stones | 30–30 | 0–1000 m |
Fish you can catch here
Giant Herring. Bait, stamina cost and how hard each one fights are on the fishing guide.
What you can farm here
Abomination Trophy, Blob, Blob Trophy, Bloodbag, Bone Fragments, Carapace, Chain, Charred Bone, Draugr Elite Trophy, Draugr Trophy, Entrails, Guck, Leech Trophy, Marksman Trophy, Ooze, Root, Scrap Iron, Seeker Meat, Seeker Trophy, Skeleton Trophy, Warrior Trophy, Wraith Trophy. Rates and sources are on the farming index.
Related pages
- Valheim Meadows: Where you start: what spawns, what it drops, and when to leave.
- Valheim Black Forest: Copper, tin and greydwarves, and the gear the biome is asking for.
- Valheim Ocean: Serpents, fishing spots, and what the sea is actually worth sailing for.
- Valheim Mountain: Frost resistance first, then silver: the order the biome demands.
- Valheim Plains: Fulings, lox and barley, and the deathsquito that ends unprepared runs.
- Valheim Mods: The mods people actually run: install order, who needs what, and the conflicts.
- Valheim Creature Weaknesses and Resistances: Exact damage multipliers for every creature, verified against the current patch.
- Valheim Comfort: The maximum, and the shortest furniture set that reaches it.
- Valheim Biomes and Spawns: The world generator's own rules: what appears where, and how often.
