From Ring of Brodgar
Vital statistics
Size 1 x 1
Skill(s) Required None
Object(s) Required Ore
Produced By Smelter
Specific Type of Stone
Required By (Stone: Alchemist's Table, Barter Pole, Bell Fountain, Border Cairn, Charter Stone, Cistern, Coronation Stone, Dovecote, Dry Stone Fence, Fealty Stone, Feather Sunfeather, Feather Trinket, Field Cairn, Fireplace, Granary, Grave Cairn, Great Hall, Grotesque Idol, Menhir, Milestone, Milling Machine, Mine Hole, Mortar & Pestle, Notice Board, Oven, Personal Claim, Petraglyph, Potter's Wheel, Primitive Doll, Rattle-Tattle-Talisman, Rock Lobster, Runed Dolmen, Seamark, Seer's Stones, Ship Dock, Statue of the Chieftain, Steel Crucible, Stone Arrow, Stone Axe, Stone Bench, Stone Casket, Stone Column, Stone Mansion, Stone Table, Stone Throne, Stone Tower, Stonestead, Sublime Portico, Tar Kiln, Village Banner... further results)
Go to Objects

Slag is a type of Stone, a byproduct obtained in the process of smelting ore in a smelter.

How to Acquire

Load Ore into a Smelter and fuel with 12 units of Coal (enough for one batch). Each ore will have a chance of becoming a bar of metal, or slag if it does not.


  • As of World 11, it can no longer be resmelted. Quoting Jorb>"Slag has been repurposed. Where you used to get gneiss from smelting, you now get slag instead. Another product now takes slag's old place." Ref:HnH Post: Is slag useless again? (Feb 07, 2019)
  • Dross is the item that replaces the waste product from the Finery Forge.
  • Can be used in paving.


Slag was a completely useless waste product in Legacy.