Ancient Era
Classical Era
Medieval Era
Renaissance Era
Industrial Era
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Future Era
Steel
Description
Unlocks Urban Defenses, giving all of your cities an automatic 400 Fortification HP and the ability to perform a ranged attack. All previous walls become obsolete and siege support units are no longer effective.
Traits
Era
Modern Era
Science Cost
3000 [ICON_SCIENCE] Science
Eureka
Build a Coal Mine and an Ironclad.
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