Damn, this thread is never used. Roller's Block is always on the first page without ever having been stickied, this won't last a day on the same page. You lot should be ashamed. Anyway;
DUALISM - A GOD GAMEDualism is a god game with a different focus from most of its kind. Two players take the roles of LIGHT and SHADOW or ORDER and CHAOS, or DAY and NIGHT, who have battled and struggled for control of the world since the dawn of time in an unending cycle. In the last age, they tore the world apart with their armies, champions and touch upon the world, threatening to unravel the fabric of reality itself! Neither side could gain victory, and in the end, they were sealed away where they could no longer touch the world. But now their prisons are weakening, and the cycle begins anew...
The Two begin weak and limited, only touching the world lightly. They must find mortals to do their bidding, their Chosen, who will bring about their release and victory. A millennium has passed and without them, the world has lost much of its glory, living among the ruins of the past age. Many weapons, armies, knowledge, remain buried and hidden, useful tools in the coming struggle.
---
So, basically, two players are the opposing personifications/primordial powers/whatever you want to call them. The Powers act at the beginning of every turn/month/whatever, exerting their influence, giving orders to their Chosen and what have you. As their prisons weaken more and more, they can influence the world more often and regain their once-great powers. For example, the power of, say, CHAOS, could decide to spend their power that turn to send an unnatural storm against a party of the champions of Order heading for a perilous mountain pass, in addition to giving its Chosen the knowledge of an ancient weapon hidden beneath the earth and ordering them to bring about a civil war in some kingdom or other.
The Chosen themselves, which the powers create during play (though they may not know it, in typical Chosen One way) or start with (if they choose to spend their starting points on them), are taken by players (or are NPCs if nobody claims them) and set to enjoy themselves and/or do as the Dark/Light/Pure/Great/Unkind One commands. On both sides, they work towards shattering the prisons of their master and bringing about its victory while trying to prevent their opposing side from doing the same. Though most of them start off weak and inexperienced, they can amass god-like power, perhaps even challenge their masters and claim reality for themselves!
I realize a game like this could suffer from metagaming a lot, so PM'ed actions of the Chosen might be needed, though I have enough faith in players not to need that most of the time. The Chosen would also gain their extra power from their master, but sharing it among eachother - meaning it's only useful for them to kill off and/or discredit their fellow Chosen.
This idea was more than slightly inspired by the Wheel of Time, but eternal dualistic conflicts occur pretty much everywhere.