“Defends your city against aerial attackers.”


General InformationEdit

  • The Air Defense is a defensive building that deals damage against Airstrip units within its range.
  • The Air Defense is available in the Industrial Age.
  • Bombers can do little damage against these structures.


Age Number Available
Industrial Age 2(3)
Global Age 3(4)
Atomic Age
Level Build Cost Gold icon Citizens Needed Citizen Upgrade Time Clock Damage /Sec. Damage Range Range HP Health icon XP Reward Exp Age Unlocked
1 3,500,000 4 5d 300 7 2,000 2,700 Industrial Age
2 5,500,000 7d 350 2,300 3,245
3 7,000,000 8d 420 2,530 3,495 Global Age
4 8,600,000 10d 550 3,290 3,950 Atomic Age

Boosts Edit

The Air Defense Technology at the Library confers these bonuses:

  • Chapter 1 : Increases Air Defense attack by 10%.
  • Chapter 2 : Increases Air Defense health by 10%.
  • Chapter 3 : Increases Air Defense limit by 1.
  • Chapter 4 : Increases Air Defense health by 10%.
  • Chapter 5 : Increases Air Defense attack by 10%.

The Radar Technology at the Library confers these bonuses:

  • Chapter 5 : Air Defenses connected to the City Center by Roads have +15% attack.

Amelia Earhart at the University confers these bonuses:

  • Air Defense Damage: Increases Air Defense attack by 6%(5 levels).
  • Air Defense Hitpoints: Increases Air Defense health by 6%(5 levels).

Trivia Edit

  • Another building that can do great damage against aircraft is the Tower.

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