Fortifications

2,5005

Provides walls during sieges. Allows the builder to pick one level‑1 defensive upgrade.

2,50010

Adds two towers to the battlements that shoot at attackers during sieges. Allows the builder to pick one level‑2 defensive upgrade. City dwellings produce +{0}% units.

5,00015

Adds one more grand tower to the battlements that shoots at attackers during sieges and spikes by the walls. Allows the builder to pick one level-3 defensive upgrade. City dwellings produce +{0}% units.