🆕 Updated for Eco 14 — “Garbage & Recycling” — this server and these numbers now reflect the new version. What changed →
  • Byproducts: nearly every recipe now leaves waste behind, so recipe pages list byproducts alongside ingredients.
  • Garbage & recycling: waste sorts from mixed garbage down to pure materials, and can be recycled back into stock.
  • Pollution has four kinds: acid rain, chemical, soil and heavy mineral, each settling into the ground differently. Pollution guide →
  • Modules reworked: upgrades are now Basic / Advanced / Modern / Specialty, one per slot, driving the same bonus system as talents. Module guide →
  • Fresh water: machines need it — water drawn from the ocean has to be desalinated first.

The character calculator has been updated for these changes. Read the garbage & recycling guide →

Smelting Skill Book

Smelting Skill Book

Hidden/Research
Weight1000 gMax stack1SkillMining Lv 1StationResearch Table

Notes

The Smelting Skill Book is a research item that unlocks the Smelting specialty, allowing a player to learn the skill and access its associated recipes and upgrades. It is crafted at a Research Table and, once created, can be right-clicked to produce an unlimited number of skill scrolls for other players to use. Stocking a Smelting Skill Book early is a key town milestone, as it lets the settlement efficiently process ore into metal bars, which is essential for advancing beyond basic tools and construction.

Notes are AI-generated and may be imprecise.

⚙ Craft calculator — adjust for your modules, skill & talents
Upgrade modules (one per slot)

Ingredients

Ingredients for this recipe
IngredientQtyType
Dendrology Research Paper Advanced5item
Geology Research Paper Advanced5item
Basic Research5category

Byproducts (garbage)

Garbage byproducts of this recipe
MaterialQty / craft
Bio Residue0.24
Garbage0.12

Approximate โ€” a category ingredient's salvage value depends on the item actually used.

Crafting waste collects in the station's garbage output and must be hauled away or recycled โ€” see the Garbage & Recycling guide.

Crafting

Crafting stats
Labor600 calories
Craft time5 min
Throughput12 Smelting Skill Book / hour (base)

Total raw to craft this

Steps5Total labor2100 calTotal time25 min

Approximate โ€” category ingredients and any production cycles are counted as raw.

Categories

Obtained from

See also