The objective of Airport City is to build and develop your own airport, including its adjacent city. Note that the territory under your control is divided in two sections: one (upper left-hand corner) for city development, i.e. mainly residential and commercial buildings, and the other (bottom right-hand corner) for airport structures - terminals, runways, hangars and so on. You cannot build a residential building or a store on the airport territory; likewise, you cannot build a runway within the city limits. Though the city and the airport are technically separated, they remain closely interconnected. From the airport you can send planes all over the world, while the city will fill the planes with passengers, and also yield the money necessary to buy new planes and cover other expenses.