You are Maya, a junk scavenger, surviving on refuse dumped from above. Yours is a world of layers, in which continents orbit at different elevations around the planet. Those at the top, the Chosen, consume massive amounts of energy and dump their waste down to the layers below. Now they have begun a descent to the Core, a living computer, in their search for the Gift of the Creator, fabled to bestow great power. At first you stand in the way of the Chosen, fighting to slow their march to the Core, and protect your homeland. But it is you who will ultimately discover Septerra's true nature, as you journey out of the familiar surroundings of your home country, and come face to face with the Legacy.