Strong Defensive Walls
Estimated Time 9 Hours
Level 6
Costs 4 Engineering Research
Requirements Large Defensive Walls
New Building(s) Defensive Gate IV, Defensive Wall IV, Defensive Wall Ramp IV
Allows you to build the Tier IV walls and gates.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.