O₂
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Smelting
Smelting
Research
Smelting
Tier
4
Cost
65 research points
Unlocks
5
Spaced Out!
Solids
Unlocks
5
building
Metal Refinery
building
Metal Tile
building
RubberMaker
item/prefab
RubberBoots
item/prefab
DrySuit
Requires
1
Refined Renovations
Required by
2
Durable Life Support
Superheated Forging
Unlocks
2
Metal Refinery
Metal Tile
Related text
High temperatures facilitate the production of purer, special use metal resources.
Smelting
