A son of Zeus to be exact. Through the portal of the computer screen you spy down upon a patch of Earth where the tiny figures of men scurry about farming, building, and wandering around. You can either gradually level mountains or gradually build up valleys. In both cases, you try to create flat farmland for people. Except for the power to deliver a spectrum of disasters such as earthquakes, tidal waves, and tornadoes, your direct influence over the people of your world is limited to this geological hand.
Good farmland makes happy people.
You can see them prosper and bustle about. Here's your problem, though. Elsewhere in the greater landscape other sons of Zeus are contesting for immortality. These gods can be played by other humans, or by the game's own AI agent. The other gods will rain the seven plagues on your populace, wiping out your base of support and worship.