Dwarf Fortress metal industry setup guide and tutorial

Iron veins, blazing forges, and dwarves with hammers in hand-building a metal industry in Dwarf Fortress turns raw rock into the backbone of your fortress’s power. From locating valuable ores to shaping gleaming weapons and armor, every furnace you light brings your colony one strike closer to greatness.

Our Dwarf Fortress metals guide will help you understand what ores you’re finding, set up your metal industry, and start making valuable alloys and weapons.

Metal industry from start to finish

The metal industry in Dwarf Fortress begins with mining raw ores from underground veins and refining them into usable bars at smelters. These bars are then shaped at forges into weapons, armor, tools, and decorative items by skilled dwarves. Managing fuel sources such as charcoal or coke is critical to keep the smelters and forges running. As production grows, organizing stockpiles for ores, bars, and finished goods helps maintain a steady workflow and prevents bottlenecks. A well-structured metal industry can turn a small fortress into a powerhouse of craftsmanship and defense.

Any metal industry in Dwarf Fortress starts with finding metal ore. That’s the easy part, really. You’ll find metal ore just by digging – it’ll get left behind as you dig through certain types of rock.

From there, you’ll need to smelt the ore in a Build (b) > Workshop (o) > Furnaces (u) >Smelter (l). Smelting also requires fuel, though. That comes from charcoal made from logs in a Build (b) > Workshop (o) > Furnaces (u) >Wood Furnace (f) or from either bituminous coal or lignite turned into coke at a Smelter.

Smelting produces metal bars that are then worked at a Build (b) > Workshops (o) >Metalsmith’s Forge (i). That’s where you’ll make everything from weapons to furniture to instruments – a process that uses more fuel.

Types of metal ore in Dwarf Fortress

Dwarf Fortress features several metal ores, each tied to specific stone layers and yielding bars for weapons, armor, and crafts. Iron ores like hematite, magnetite, and limonite appear mainly in sedimentary formations near the surface. Copper sources include native copper, malachite, and tetrahedrite, while galena provides lead and silver; rarer finds such as cassiterite for tin, sphalerite for zinc, and native gold or platinum cluster in igneous or metamorphic zones. Raw adamantine strands emerge from deep cavern webs, demanding careful extraction.

There are 12 types of metal that come from the 17 different metal ores you might find underground in Dwarf Fortress.

Dwarf Fortress metal ores and metals

Metal ores are the foundation of your fortress’s industry, providing the raw materials for weapons, armor, and tools. Each ore yields one or more metals when smelted, such as hematite producing iron or native copper producing copper. Some ores, like tetrahedrite and galena, yield multiple alloys or secondary metals, making them valuable finds. Understanding which ores to mine and refine lets you plan a stable supply chain from excavation to finished products. Keeping your smelters close to both fuel sources and stockpiles saves time and labor, ensuring a reliable flow of metal goods for your dwarves.

Smelting one piece of each of the above metal ores at a Smelter will produce four bars of metal. For the two ores that produce two different metals – Galena and Tetrahedrite – four bars of the first metal listed will be produced along with up to four bars of the second metal.

Raw Adamantine is slightly different. Raw Adamantine needs to be processed first at a Craftsdwarf’s Workshop with Extract Metal Strands. Those strands are then woven into cloth at a Loom (and then into Adamantine clothing at a Metalsmith’s Workshop) or made into Adamantine Wafers at a Smelter.

Metal Alloys in Dwarf Fortress

Metal alloys allow dwarves to combine base metals into stronger or more valuable materials. Bronze, brass, and steel are among the most common, each with unique melting points and properties suited to different tools or armor. Alloy production takes place at a smelter, where refined bars are blended according to specific recipes. Choosing the right alloys can greatly improve weapon quality, trade value, and military capability within your fortress.

Combining those 12 metals at a Smelter lets you make an additional 14 Alloys.

Dwarf Fortress Alloys

Alloys in Dwarf Fortress let you turn basic metals into more useful or valuable materials. By combining ores or refined bars at a smelter, you can produce metals like bronze, brass, or steel, each offering different strength and value. A steady fuel supply and access to flux stones are key for advanced alloys such as steel. Managing these resources carefully ensures your fortress can equip its soldiers with stronger weapons and armor or create valuable trade goods for caravans.

When you create an Alloy at a Smelter, you’ll have the choice to either use ore or use bars. Using bars is less efficient, producing two bars of Alloy for each operation (1 Silver Bar and 1 Copper Bar produce 2 Billon Bars). Using ores, on the other hand, produces eight bars (1 Zinc ore and 1 Copper ore produce 8 Bronze Bars).

Pig Iron and Steel require additional materials. In addition to extra bars of charcoal or coke, you’ll also need Flux stone – Calcite, Chalk, Dolomite, Limestone, or Marble.

Metal and Alloy values

Metal and alloy values determine the quality and usefulness of your products, affecting weapon damage, armor strength, and trade worth. Each metal has distinct properties-iron and steel excel in combat, while copper and bronze provide decent alternatives for early industry. Precious metals like silver, gold, and platinum hold great trade and decorative value but lack battlefield strength. Balancing production between functional alloys and luxury materials helps maintain both military readiness and economic stability in your fortress.

Below, we’ll list the value – the base rate you’d get when trading with a Caravan – of a single bar of each Metal or Alloy.

Dwarf Fortress Metal and Alloy values

Different metals and alloys in Dwarf Fortress have distinct material values that affect the worth and performance of finished goods. Precious metals like gold, silver, and platinum yield high trade value but make weak weapons and armor. Iron and steel, on the other hand, offer lower value but superior strength, making them the foundation of a strong military industry. Alloying also increases value and quality; for instance, bronze and brass are more valuable than their base metals. Understanding these differences helps balance wealth generation and fortress defense.

The base value of a bar of each Metal and Alloy lets you see how (relatively) valuable something created from that metal would be – a Gold throne will be worth more than one made from Bronze, for example.

Metal and Alloy uses in Dwarf Fortress

Metals and alloys serve many roles in Dwarf Fortress, from basic construction to high-value trade goods. Any metal bar can be turned into floors, walls, and workshops, while nearly all metals (except bismuth) can also be used for furniture, tools, and decorative crafts that boost room value and trade profits. Weapon-grade metals such as copper, bronze, iron, steel, and adamantine provide progressively better armor and weapons, making them central to kitting out a serious military. Alloys add further flexibility: you can stretch scarce ores, increase item value, fine-tune combat performance, and even color-code rooms and mechanisms with distinctive metal hues.

Every metal can be used in Construction – building things like floors, walls, and Workshops. Every metal except Bismuth can be used in making furniture (things like cabinets, barrels, and thrones) and metal crafts (like earrings, goblets, and crowns).

How to produce steel and its requirements in Dwarf Fortress

Producing steel in Dwarf Fortress requires a two-step process at a smelter, using iron, flux stone, and fuel.​

Requirements

Steel production needs these core inputs per batch (yielding 2 steel bars):

• 1 iron bar + 1 pig iron bar.

• 1 flux stone (calcite, chalk, dolomite, limestone, or marble).

• 1 fuel (charcoal or coke) for carbon + 1 fuel (or magma) for heat at a regular smelter.​

Iron bars come from smelting ores like hematite, limonite, or magnetite (1 ore yields 4 bars). Fuel comes from charcoal (wood furnace) or coke (smelt bituminous coal/lignite).

Step 1: Make Pig Iron

At a smelter (dwarf with furnace operator labor):

1. Queue “Make pig iron bars.”

2. Inputs: 1 iron bar + 1 flux stone + 2 fuel (or 1 fuel + magma).​

3. Output: 1 pig iron bar.

Step 2: Make Steel

At the same smelter:

1. Queue “Make steel bars.”

2. Inputs: 1 iron bar + 1 pig iron bar + 1 flux stone + 2 fuel (or 1 fuel + magma).​

3. Output: 2 steel bars.

Automation Tips

Use work orders for steady production:

• Fuel: Repeat “Make X coke/charcoal” if below threshold.

• Ore: “Smelt 8 iron ore” → condition to make pig iron.

• Pig iron: “Make 16 pig iron bars” → condition for steel.​

Stockpile ores, flux, bars, and fuel nearby smelters to cut hauling delays. Magma smelters halve fuel needs.

Where to find flux stones like limestone or dolomite

Flux stones like limestone and dolomite form large layers in Dwarf Fortress, often marked on the embark screen as “Flux Layer(s)” to help you choose a good site.

Flux Stone Types

These stones work as flux for steel and pig iron:

• Limestone, dolomite, chalk (sedimentary layers, usually in the shallower layers with potential iron ores).

• Marble (metamorphic layer, found almost anywhere, even near volcanoes).

• Calcite (small clusters within other flux layers, not full layers).​

Finding Them In-Game

Dig down through soil and first stone layers to hit sedimentary or metamorphic layers where flux appears-look for wide bands of one stone type.
Common spots include caverns, aquifers, or just broad excavation at levels 2-3 (Y=100-130).​
If your embark has flux layers, you’re guaranteed huge supplies; without, restart or trade for them.

Stockpile flux near your smelters (enable only flux types) to speed up steel production.​