Sky Boom: City Defense

Rockets are coming. Place your turrets, read the sky and keep the city standing.

Build up to four turrets in front of the city — the fast-firing Rapid Interceptor, the sky-blanketing Flak Array and the long-range Missile Battery — and hold back drones, rockets, guided and armoured missiles wave after wave. Between waves you get a 30-second prep window to upgrade turrets and repair damaged buildings; once the next wave launches, you fight with what you built. Lose the Sunspire Relay and the city falls. Let the turrets fire on their own or switch to manual control and pick every target yourself. Victories raise your commander level, unlock new turrets and new cities to defend, and the meta currency you earn buys permanent doctrine upgrades.

No account, no sign-up, no in-app purchases. Your progress stays on your device. The game plays fully offline — a connection is only used to load ads.