Metallurgy technology
Bellows
30 red tech points
Bellows is a Metallurgy technology in column 7 of the tech tree. Researching it costs 30 red tech points. It needs Iron Forge first. It unlocks Lens, Alchemy Flasks II and Bellows.
Technology
Branch
Column
Red points
Green points
Blue points
Total points
Unlocks
Reputation
In the tree
Metallurgy tech tree
Column 7
Research cost
Red points
× 30
What it unlocks
Lens
Furnace I
Alchemy Flasks II
Furnace I
Bellows
Building
Research first
Iron Forge
35 red tech points