From Dust

In From Dust, players assume a god-like third-person perspective from which they manipulate an archipelago environment in an effort to save, and enlighten, a nomadic tribe. With a spherical cursor, the user controls certain types of matter, namely soil, lava, water, and vegetation, in real time. Lava cools to form solid rock, vegetation propagates in soil, and moving water quickly erodes terrain. Physical changes to the world occur extremely rapidly, allowing players to restructure islands within minutes.