Iron Mine

The Iron Mine is your in-city resource building that produces Iron for your account. Unlike Stone gathered from resource nodes on the world map, this Iron is a secured resource that cannot be pillaged in the event that your Town loses to an opponent’s attack.

The Iron Mine is a highly important building in the early game since it will be your main source of Iron. Increasing the building level of the Iron Mine does not directly upgrade its efficiency, but it does allow you to build more (and higher level) Furniture within the Iron Mine building that increases its productivity as well as provide additional slots for Resident workers. This efficiency can be further enhanced with research in the Economy research tree of the Academy building.

While the rate of Iron production from the Iron Mine is significantly less than Bread or Wood, so too is the consumption of it in various buildings, research projects, troop trainings, and more. Typically 1 portion of Iron resource is equivalent to 20 portions of Bread or Wood in game.

Just like other resource buildings, resource gathering on the world map will start to outpace in-town resource generation due to diminishing returns of additional Iron Mine levels, usually around the mid-20s of Town Center level. While the Iron Mine never stops being an important source of this important resource, it does mean its priority can fall slightly behind other buildings you are upgrading if you have to make tough choices.