Stone Walls

Stone Walls Military

Unlocks Defensive Building

Stone Walls

Walls prevent enemy troops from advancing into your city.

Unlocks Defensive Building

Stone Gates

Controls access to the city. The gate will close during an attack.

Unlocks Defensive Building

Stone Towers

Archers attack enemies on sight to protect the city.

Store at least 5t Concrete.

Knowledge 18.000

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General information

The Anno 117 research node Stone Walls belongs to the category Military. Military skills improve your military units on land and at sea or unlock entirely new unit types. You can also unlock powerful upgrades for your defensive structures, including towers, walls, and recruitment buildings.

Stone Walls is a research node of the type Discovery. These make up the majority of the skills in the Anno 117 skill tree. To research them, you must first reach them via a research path. For some discoveries, however, you must first meet various conditions to unlock them—for example, having a specific population type in Albion. Stone Walls requires 18.000 Knowledge.