Super fun game! Minor modifications that would be fun: * As you draw a path, at the same rate gradually bold/pulse all other planes' existing drawn paths from their current location forward so I can visually see if two future lines will not just overlap, but overlap at the same time * A slider to control game speed * A clearer arrow over the landing zone. It took me quite a while to realize how to land a plane * A timer over each runway to next takeoff