Pray for Disaster

Intro:
Charged with defending the shrines of the old gods, your small fortress is one of their last outposts.

The forces of Below are relentless, eager to wipe out the last vestiges of hope for mankind. The only way you can possiblly hold out is with help from the gods! If enough people pray hard enough, perhaps they will send the elements to your aid. The gods are not always merciful though, and the elements can be unforgiving.

Description:
Attackers will come in waves and your goal is to survive as long as you can. More attackers will come than you can defend against just building defenders, so you'll need help from the gods to survive.
Builders build homes. The more homes in your kingdom, the faster peasants will come.
You can send peasants to become builders (who build more homes), defenders, or worship one of the gods.
As each god is appeased, they will send one of a few corresponding natural disasters to your aid. While these will damage your enemies, they can also damage your troops and if you're unlucky, maybe even your keep!