Iron is the backbone of your army. Upgrade your Iron Quarry to increase Iron production and capacity. While upgrading, collection is halted.
- 50% of the iron stored in iron quarries can be stolen during raids. The amount lost is decreased by the "hidden vault" kingdom perk.
- From level 13 and hire, iron quarries are able to have a builder work overtime on it to get extra iron every 8 hours. This effectively double the production.
- Iron is the main cost type for troops, traps, and research
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Production per hour
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