What are Fortifications for?There are two kinds of Fortifications - passive and active.
Passive Fortifications include Walls, Gates, and Decor. All of these additions contribute to your City's total defense bonus, granting all your defensive units additional combat effectiveness when fighting off attackers. This bonus will only be applied to defensive units currently garrisoned in your City and outside of your Acropolis.
Active defenses include Towers only. Unlike Walls, Towers will actively participate in defensive battles just like one of your regular Units - unlike normal Units, when they're damaged they can be repaired and brought back online for free by you or by Friends as many times as needed, granting a considerable long-term advantage. Active defenses also contribute to your overall Defense Bonus. Fortifications cannot be deployed to locations outside your City. You can build up to 20 Towers in total.
Why do I need Decor?All Decor help increase your City's Defense Bonus. The more of these additions you have in your City, the higher your Units' Defensive rating. Only Units actively defending your City (not in the Acropolis) will receive the Defense Bonus.
SapperSappers are assistants capable of automatically repairing all defensive Towers and the Temple of Hermes in your City.
Sappers are activated automatically upon signing into the game, do not consume Resources, and cannot be damaged or destroyed.
Each Sapper you hire increases the rate of repair for the Temple of Hermes, and all defensive emplacements in your City by 5%. You may hire a maximum of 5 Sappers.
To hire a Sapper:
1. Go to your City.
2. Click "Construction".
3. Open the "Decor" tab and select the Sapper.
4. Select an area within your City and begin construction.