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Reforge Dyrnwyn, upgrade it and keep a recovery weapon

Quick answer

At Black forge level 4, combine one tip, blade and hilt fragment with 20 smelted Flametal and 1 Bloodstone. Cooler, Vice and Metal cutter provide a level-4 route. Adding the Gem cutter reaches level 5, where the existing sword upgrades to quality 2 for 10 more Flametal and 1 more Bloodstone. Keep another weapon for recovery because the normal fragment set is not renewable.

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How this guide was checked

✓
Recipes and numbers

Community references, checked 8 Sep 2026. Substantive indexed reference text and relevant tables inspected on 8 September 2026 UTC; direct Wiki retrieval was blocked. Research-based mechanics, not gameplay or installed-build verification. Loadouts, staging and recovery choices are editorial recommendations.

✓
Patch notes

Default survival rules · 1.0 release context checked 9 September 2026

See the 10 sourcesSuggest a correction
10 sources
4 steps

Before you start

1

Build the missing extensions beside your forge

Prove or fix this

  1. Check the displayed Black forge level. Our route uses three different extensions: Black forge cooler, Vice and Metal cutter. If the cooler and cutter are already connected from the Ashlands equipment route, the Vice is the missing step.
  2. Craft two Mechanical springs at the Artisan table. They use 6 Iron and 2 Refined eitr in total. Then set aside another 5 Iron and 8 Copper for the Vice itself.
  3. Use the Hammer to place the Vice near the forge, alongside the cooler and cutter. Reposition an extension if its connection fails. Reopen the forge and confirm level 4; three copies of one extension do not supply three levels.
  4. Keep the forge sheltered and usable for both the craft and later repairs. The Mistlands station guide covers Black cores, marble and the refinery chain if this is a new workshop.
Black forge10 Black marble + 10 Yggdrasil wood + 5 Black coreHammer; within workbench range
Black forge cooler5 Iron + 5 Copper + 4 Black marbleHammer; within black forge range
Artisan table2 Dragon tear + 10 WoodHammer; no station required
Refined eitr1 Sap + 1 Soft tissueEitr refinery
Mechanical spring3 Iron + 1 Refined eitrArtisan table level 1
Vice5 Iron + 8 Copper + 2 Mechanical springHammer; within Black forge range
Metal cutter5 Black marble + 5 Flametal + 5 Ashwood + 4 Charred boneHammer; within black forge range

Mechanics sources: Valheim Wiki: Black forgeValheim Wiki: Mechanical springJötunn: generated recipe listJötunn: generated building-piece list

2

Bring the right metal and reserve the gem

Prove or fix this

Dyrnwyn uses Flametal bars from the Blast furnace. Ore is not interchangeable with bars; the shared smelting recipe uses 2 Coal per ore. If the Metal cutter is also new, reserve its 5 Flametal in addition to the sword’s 20. A copied reference table labels this input as ore, but the dedicated sword recipe and generated recipe registry agree on Flametal.

Bloodstones can appear in Charred Fortress chests, so a cleared fortress does not promise the gem you need. Use the complete breach-and-loot route, inspect the inner chests, and continue to another fortress if necessary. Reserve the sword’s gem before spending gems on optional gear.

Build at the workshop where your metals already are when practical. Iron, Copper, Flametal and even Mechanical springs block ordinary portals. Bloodstones and the finished sword can travel through them. Use the Stone-portal entry-direction rule or physical cargo route for restricted ingredients.

Flametal1 Flametal ore + 2 CoalBlast furnace
Stone portal10 Greydwarf eye + 30 Grausten + 2 Molten coreHammer; within stonecutter range

Mechanics sources: Valheim Wiki: BloodstoneValheim Wiki: Mechanical springValheim Wiki: PortalJötunn: generated recipe listValheim Wiki: Dyrnwyn

3

Craft once, then upgrade the existing sword

Prove or fix this

Carry all five ingredient types to the level-4 forge, select Dyrnwyn in the Craft tab and inspect the full material list before crafting. You need one of each fragment; duplicates of a tip do not replace a blade or hilt. Confirm the finished sword in inventory before sorting the remaining supplies.

For quality 2, connect the Gem cutter as the fourth distinct extension and confirm forge level 5. Its Bloodstone is a separate expense. Carry the existing sword, select it in the Upgrade tab, and supply the additional 10 Flametal and 1 Bloodstone shown in the upgrade card.

  • Collect Ashwood from Ashlands trees and Morgen sinew from Morgens, including the Putrid Hole enemies encountered during the quest. The inspected pre-1.0 station progression reaches level 5. Higher sword qualities in database tables require forge levels 6 and 7; they are not an available upgrade path in this guide.
Additional budget from an already usable level-4 workshop
GoalAdditional materials
Craft quality 1One of each fragment, 20 Flametal, 1 Bloodstone.
Add Gem cutter5 Flametal, 8 Ashwood, 2 Morgen sinew, 1 Bloodstone.
Upgrade quality 1 to 2The existing sword, 10 Flametal, 1 Bloodstone.
All three stepsOne fragment set, 35 Flametal, 3 Bloodstones, 8 Ashwood, 2 Morgen sinew.
Dyrnwyn1 Dyrnwyn hilt fragment + 1 Dyrnwyn blade fragment + 1 Dyrnwyn tip fragment + 20 Flametal + 1 BloodstoneBlack forge level 4
Gem cutter5 Flametal + 8 Ashwood + 2 Morgen sinew + 1 BloodstoneHammer; within Black forge range
Dyrnwyn — upgrade to quality 21 Dyrnwyn, quality 1 + 10 Flametal + 1 BloodstoneBlack forge level 5; Upgrade tab

Mechanics sources: Valheim Wiki: DyrnwynValheim Wiki: Black forgeValheim Wiki: Gem cutterJötunn: generated recipe list

4

Choose it for the task, not just the flame

Prove or fix this

Dyrnwyn is a one-handed slash-and-fire sword. Its flame also lights nearby surroundings. Use the ordinary primary sword combo for available openings and reserve the slower secondary attack for a clear opening; practise the timing somewhere recoverable before bringing the unique weapon on a dangerous expedition.

The flame is not proof of better damage against every target. Enemy resistance and the actual quality of your existing weapon matter. Nidhögg remains a practical Ashlands sword with replaceable materials and no fragment quest; use its existing crafting route if the immediate goal is dependable progression. Do not replace a well-developed loadout solely because Dyrnwyn is rarer.

Keep the completed sword repaired at the Black forge and retain your former weapon, armor and food at the recovery base. If Dyrnwyn is lost with a tombstone, recover it using the same staged approach as the fragments. The quality-2 upgrade changes the existing item; it does not create a spare.

This optional journey grants a weapon, not a new boss-progression requirement. Continue with the Fader preparation and fight when ready. Deep North is released, but this pre-1.0 guide does not claim a benefit against its enemies until that interaction is revalidated.

Nidhögg3 Charred bone + 12 Flametal + 2 Asksvin hideBlack forge level 3

Mechanics sources: Valheim Wiki: WeaponsValheim Wiki: DyrnwynValheim Wiki: Black forgeEIP Gaming: Mysterious Locations and Dyrnwyn

You’re ready when…

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If something goes wrong

The recipe is visible but crafting is disabled.

Check all three named fragments, smelted Flametal and the Bloodstone in your inventory. Confirm forge level 4, shelter, and room for the output; the recipe has five different ingredients.

The Vice is missing from the Hammer menu.

Craft and pick up Mechanical springs first, then gather the direct Iron and Copper cost. Springs come from the Artisan table, not the Black forge.

My new Gem cutter did not enable the upgrade.

Confirm all four different forge extensions are connected and the station displays level 5. Carry the existing sword, use the Upgrade tab and keep the upgrade’s gem separate from the one consumed by the cutter.

I want another sword for a second player.

Under normal resource drops the fragment set is nonrenewable. Share the completed sword or use a renewable alternative; this guide does not promise another set by waiting or clearing more ordinary caves.

Sources · 10community · checked 8 Sep 2026 · Research-based
Valheim Wiki: Black forge ↗Shelter and free repair, four distinct extensions, current reference maximum level 5 and their costs.community ·
Valheim Wiki: Mechanical spring ↗One spring from 3 Iron and 1 Refined eitr at Artisan table; ordinary portal restriction.community ·
Valheim Wiki: Bloodstone ↗Chance-based loot in Charred Fortress chests and ordinary portal compatibility.community ·
Valheim Wiki: Gem cutter ↗5 Flametal, 8 Ashwood, 2 Morgen sinew and 1 Bloodstone; Black forge upgrade.community ·
Valheim Wiki: Dyrnwyn ↗Nonrenewable fragment set under normal drops, higher resource modifiers can change fragment yield; quality-2 upgrade at Black forge 5 and unavailable higher forge requirements.community ·
Valheim Wiki: Weapons ↗One-handed sword primary combo and secondary attacks; Nidhögg and Dyrnwyn damage categories. Database maximum stats do not establish current obtainable quality.community ·
Valheim Wiki: Portal ↗Standard restricted-item list includes metals and Mechanical springs, excludes Dyrnwyn fragments; Stone portal permits restricted items. Hilt travel is inferred from this exhaustive reference list, not a separately inspected hilt item flag.community ·
EIP Gaming: Mysterious Locations and Dyrnwyn ↗Glowing Putrid Hole Vegvisir, question-mark map markers, breakable walls, altar fragment identities, tomb access and base craft at Black forge 4.community ·
Jötunn: generated recipe list ↗Spring ingredients/output and Dyrnwyn base and quality-2 inputs; uses Flametal bars, not ore.community ·
Jötunn: generated building-piece list ↗Vice, Metal cutter and Gem cutter construction costs.community ·
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