Spiritfarer Foundry: How To Build + How To Use

Standing near the Foundry in Spiritfarer
Unlocked By
  • Astrid’s “Bars of Gold” Request
  • Hobbyist Blueprint Station
Construction Materials
  • 10 Coals
  • 10 Oak Planks
  • 12 Nebula Fabrics
  • 8 Lightnings in a Bottle
  • 7 Bright Jellies
  • 510 Glims

To use the Foundry, place Coal in the furnace and your choice of metal ore in the compartment. Then work the bellows alternately within the indicated temperature until the thermometer reaches its peak and releases the output ingots.

These ingots are then used for the construction of various ship facilities and upgrades.

Unlocking The Foundry

You can find Astrid as the leader of a strike at Bottom Line Corp. / Spiritfarer
You can find Astrid as the leader of a strike at Bottom Line Corp.

To unlock the Foundry, you will need to have the spirit Astrid on your ship.

Once Astrid is on the ship, follow these initial requests of hers:

  • Feed Your Elders
  • Three Sisters

After this, Astrid will give you the “Bars of Gold” request and ask you to upgrade to the Hobbyist Blueprint Station. This upgrade requires:

This unlocks the blueprints for building the Foundry, as well as a couple other building facilities.

How To Build the Foundry

Foundry Building Requirements
Material Where/How to Get
10 Coals Coal is mined from nodes.

You can find these nodes in:

  • Hoseki Quarry (X: -38, Y: 228)
  • Mount Toroyama (X: -99, Y: 34)
  • Kalstein Mines (X: -99, Y: 117)
10 Oak Planks Made by cutting logs in the Sawmill.

Get oak logs by cutting trees in:

  • Gurenu Fields (X: -65, Y: 55)·
  • Resuteno Meadows (X: -97, Y: -25)
  • Iwashima Countryside (X: -64, Y: 16)

You can also build more than one Foundry. However, building a new one doubles the required materials that you need.

How To Use the Foundry

Astrid will teach you the basics of the Foundry. / Spiritfarer
Astrid will teach you the basics of the Foundry.

Once you build the Foundry, Astrid will head inside and give you the basics of using it. Here’s how:

Step 1: Head inside and interact with the furnace in the middle to place Coal inside. You can put as many as you like.

Step 2: Go to the left side and interact with the compartment. This opens your inventory and shows you all the metal and glass items that you can smelt. You can choose up to 50 of the same item.

Step 3: After confirming the items, a minigame will start. Interact with the bellows on each side in an alternating manner to push the needle up to the designated temperature.

Each ore will have its own temperature that you need to maintain, and going over that indicator will make the furnace overheat.

Step 4: Keep using the bellows and maintain the needle in the designated spot until the thermometer fills up. Once this happens, the ingots will fall on the basket at the right, and you can collect them there.

Repeat as much as you need.

Keep the temperature within the indicated range while pushing on the bellows. / Spiritfarer
Keep the temperature within the indicated range while pushing on the bellows.

Here are all of the ores you can put inside the Foundry, as well as their outputs:

Input Output
Aluminum Ore Aluminum Ingot
Copper Ore Copper Ingot
Gold Ore Gold Ingot
Iron Ore Iron Ingot
Pulsar Ore Pulsar Ingot
Silver Ore Silver Ingot
Zinc Ore Zinc Ingot
Empty Bottle Glass
Mackerel Failed Experiment
Old Shoe Household Glue

Note: The failed experiment and household glue are both obtained via one of Stanley’s requests.

Foundry Improvement Upgrades

The “A Little Bit of Sun” errand from Francis leads you to the Foundry Improvement. / Spiritfarer
The “A Little Bit of Sun” errand from Francis leads you to the Foundry Improvement.

To unlock the Foundry improvement, you will need to first visit Iwashima Countryside. Then you’ll need to collect the treasure map from the “A Little Bit of Sun” errand provided by Francis the Wandering Merchant.

This treasure map will lead you to the location X: -58, Y: -52, and you can obtain the blueprint for the Foundry improvement by diving into the glowing part of the water.

Once the Foundry is upgraded, all of the output from each material you smelt will be doubled. This makes it easier to collect construction materials.

Foundry Improvement Requirements
Material Where/How to Get
12 Nebula Fabrics Made by weaving Nebula Thread in the upgraded Loom.

Nebula Thread is made by weaving Nebula Fiber at the Loom, and Nebula Fiber is collected from the Nebula Pillbugs event that Alice introduces to you.
8 Lightnings in a Bottle These are farmed via the Thunderstorms event that Atul introduces to you.
7 Bright Jellies Farmed from the Bright Jelly event that Gwen introduces to you.

Event locations are at:

  • Stage 1 – X:80, Y: 92
  • Stage 2 – X: 63, Y: 163
  • Stage 3 – X: -8, Y: 92
510 Glims Acquired by completing requests, getting specific items, or selling items from your inventory.

February Cortes

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Feb has been trying to speedrun Super Mario 64 since he was 10 years old, but doesn't have the hand-eye coordination for it. When not attempting that, he spends his free time playing Metroidvanias, platformers, and Resident Evil 4 on all available consoles. He also likes building Gunpla and writing music, and thinks bicycles are man's greatest invention.

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