A long ago, mortals waged war against the gods and managed to defeat them. Now, the player as the only celestial being alive has to bring mortals to extinction in turn-based battles in order to survive.
The war between gods and mortals resulted in defeat of the divine ones. A young god miraculously survived but his life won't last long while mortals are still inhabit the planet. In order to survive he has to collect sparks of creation, pieces of the fallen gods' powers, and bring mortals to extinction.