NimbleBit is showing off its next prototype at GDC this week. Rather than cram tiny, adorable denizens into massive skyscrapers, the developer's stuffing people into planes. Players start a small airline in Pocket Planes, eventually building up their transportation empire to escort people and cargo all over the world.

Touch Arcade got first crack at the work in progress, which sounds similar to Tiny Tower. Players can purchase "plane bux" through in-app purchases or earn them as they go along, and customize their airplanes and statistics such as flight speed, travel distance and capacity. Given that it's a prototype, the makeup of the game may change over the next few months.

This article was originally published on Joystiq.