Black Forge

Every upgrade within reach of the Black Forge adds one level, in whatever order you build them, and widens its build radius by 3 m. Upgrades need 2 m of clear space from each other.

Level1

Black Forgeno upgrades

Build radius 20 m33 new recipes

+21 more

Level2

Black Forge Coolerwithin 4 m

Iron 5Copper 5Black Marble 4

Build radius 23 m3 new recipes15 quality upgrades

Level3

Vicewithin 4 m

Iron 5Copper 8Mechanical Spring 2

Build radius 26 m17 new recipes15 quality upgrades

+5 more

Level4

Metal Cutterwithin 4 m

Black Marble 5Flametal 5Ashwood 5Charred Bone 4

Build radius 29 m70 new recipes30 quality upgrades

+58 more

Level5

Gem Cutterwithin 4 m

Flametal 5Ashwood 8Morgen Sinew 2Bloodstone 1

Build radius 32 m85 quality upgrades

Level6

Smith's Apronswithin 4 m

Bloodgold 5Timberwood 8Moose Hide 2

Build radius 35 m82 quality upgrades

Each quality column is the Black Forge level that upgrade needs.

Item	Quality 2	Quality 3	Quality 4
Level 1 33
Arbalest	2	3	4
Bell	no upgrades
Bloodgold Arrow	no upgrades
Bloodgold Bolt	no upgrades
Bloodgold Payload	no upgrades
Bone Bolt	no upgrades
Brimstone	no upgrades
Carapace Arrow	no upgrades
Carapace Bolt	no upgrades
Carapace Breastplate	2	3	4
Carapace Buckler	2	3
Carapace Greaves	2	3	4
Carapace Helmet	2	3	4
Carapace Shield	2	3
Carapace Spear	2	3	4
Charred Arrow	no upgrades
Charred Bolt	no upgrades
Demolisher	2	3	4
Dvergr Lantern	no upgrades
Grappling Hook	no upgrades
Himminafl	2	3	4
Iron Bolt	no upgrades
Jörmundling	no upgrades
Jotun Bane	2	3	4
Krom	2	3	4
Mistwalker	2	3	4
Neckstabber	no upgrades
Pulsating Earrings	no upgrades
Resounding Shackle	no upgrades
Skoll and Hati	2	3	4
Skull Splittur	2	3	4
Spinesnap	2	3	4
Witch Crown	no upgrades
Level 2 3
Asksvin Saddle	no upgrades
Black Metal Bolt	no upgrades
Moose Saddle	no upgrades
Level 3 17
Ash Fang	4	5	6
Ashen Cape	4	5	6
Berserkir Axes	4	5	6
Breastplate of Ask	4	5	6
Flametal Breastplate	4	5	6
Flametal Greaves	4	5	6
Flametal Helmet	4	5	6
Flametal Mace	4	5	6
Flametal Shield	4	5
Flametal Tower Shield	4	5
Hood of Ask	4	5	6
Nidhögg	4	5	6
Ripper	4	5	6
Slayer	4	5	6
Snow Shovel	4	5
Splitnir	4	5	6
Trousers of Ask	4	5	6
Level 4 91
Bleeding Berserkir Axes	5	6
Blood Fang	5	6
Bloodgeon	5	6
Breastplate of the Protectorupgrade only	5	6
Brutal Slayer	5	6
Cast: Breastplate of the Protector	no upgrades
Cast: Chestpiece of the Vanguard	no upgrades
Cast: Helmet of the Protector	no upgrades
Cast: Hood of the Vanguard	no upgrades
Cast: Intricate Key	no upgrades
Cast: Nord Atgeir	no upgrades
Cast: Nord Axe	no upgrades
Cast: Nord Bow	no upgrades
Cast: Nord Buckler	no upgrades
Cast: Nord Crossbow	no upgrades
Cast: Nord Dagger	no upgrades
Cast: Nord Greataxe	no upgrades
Cast: Nord Greatshield	no upgrades
Cast: Nord Greatsword	no upgrades
Cast: Nord Knucklechains	no upgrades
Cast: Nord Mace	no upgrades
Cast: Nord Shield	no upgrades
Cast: Nord Sledge	no upgrades
Cast: Nord Spear	no upgrades
Cast: Nord Sword	no upgrades
Cast: Trousers of the Protector	no upgrades
Cast: Trousers of the Vanguard	no upgrades
Chestpiece of the Vanguardupgrade only	5	6
Crown of Valheim	no upgrades
Dyrnwyn	5	6
Frostfire Atgeir	5	6
Frostfire Axe	5	6
Frostfire Bow	5	6
Frostfire Crossbow	5	6
Frostfire Dagger	5	6
Frostfire Greataxe	5	6
Frostfire Greatsword	5	6
Frostfire Knucklechains	5	6
Frostfire Mace	5	6
Frostfire Sledge	5	6
Frostfire Spear	5	6
Frostfire Sword	5	6
Helmet of the Protectorupgrade only	5	6	-
Hood of the Vanguardupgrade only	5	6
Klossen	5	6
Moose Hide Cape	5	6
Nidhögg the Bleeding	5	6
Nidhögg the Primal	5	6
Nidhögg the Thundering	5	6
Nord Atgeirupgrade only	5	6
Nord Axeupgrade only	5	6
Nord Bowupgrade only	5	6
Nord Bucklerupgrade only	5	6
Nord Crossbowupgrade only	5	6
Nord Daggerupgrade only	5	6
Nord Greataxeupgrade only	5	6
Nord Greatshieldupgrade only	5	6
Nord Greatswordupgrade only	5	6
Nord Knucklechainsupgrade only	5	6
Nord Maceupgrade only	5	6
Nord Shieldupgrade only	5	6
Nord Sledgeupgrade only	5	6
Nord Spearupgrade only	5	6
Nord Swordupgrade only	5	6
Primal Berserkir Axes	5	6
Primal Slayer	5	6
Root Fang	5	6
Root Ripper	5	6
Scourging Slayer	5	6
Splitnir the Bleeding	5	6
Splitnir the Primal	5	6
Splitnir the Storming	5	6
Storm Fang	5	6
Storm Ripper	5	6
Storm Star	5	6
Thunderblood Atgeir	5	6
Thunderblood Axe	5	6
Thunderblood Bow	5	6
Thunderblood Crossbow	5	6
Thunderblood Dagger	5	6
Thunderblood Greataxe	5	6
Thunderblood Greatsword	5	6
Thunderblood Knucklechains	5	6
Thunderblood Mace	5	6
Thunderblood Sledge	5	6
Thunderblood Spear	5	6
Thunderblood Sword	5	6
Thundering Berserkir Axes	5	6
Trousers of the Protectorupgrade only	5	6
Trousers of the Vanguardupgrade only	5	6
Wound Ripper	5	6

The Black Forge stops at level 6, so it can't reach the qualities marked with an idol. Only the Forge of Potential takes an item there, and it spends that idol on a roll that can fail.

These need a Black Forge within its build radius before the hammer will place them.

Black Forge CoolerDvergr Metal WallDvergr Pole LanternDvergr Sharp StakesDvergr Spiral Staircase LeftDvergr Spiral Staircase RightDvergr StakewallDvergr Wall LanternFlametal BeamFlametal GateFlametal PillarGem CutterHexagonal GateMetal CutterSmith's ApronsVice