We, the users of worldbuilding, are all gods.
We can create any number of alternate realities.
We can only be in one reality at a time.
We can shape these realities into whatever worlds we can imagine. We can make the worlds that we build a reality.
Being gods, we can travel to other realities and change them as we see fit.
We can also destroy any reality we desire by visiting that reality and shutting it down.
Moving from reality to reality causes a small connection to be formed between those two realities. The more we move from reality to reality the more this connection grows, until eventually the two realities start leaking onto each other. This can have profound effects on the inhabitants on both realities.
If two or more realities leak into each other too much they will eventually collapse (eventually being an extremely long amount of time), completely eliminating anything in those realities except for the gods themselves.
As well as creating flora and fauna, we can create a vast array of intelligent life forms to populate our realities. All intelligent life forms have their own free will. The intelligent life doesn't have to recognise you as a god, but having a popular belief system based upon you is a highly regarded status symbol amongst other gods.
Although we can create all manner of intelligent life in these realities, ultimately these intelligent life forms can never truly relate to us, and given enough time, we become lonely and crave the companionship of other gods.
Some realities are cherished by their creator, and they don't want that reality to change. Other realities are more for fun or are created as a sandbox for ideas. Some realities are worked on by more than one god, sometimes as a collaborative effort, sometimes as a competitive sport. Many realities have been abandoned by their creator and exists in a half finished state.
Destroying or substantially changing the reality of another god, particularly a reality that they cherish, can result in bloody conflict between the gods. I picture us as gods being like a halfway point between who we are as human beings and the Greek gods of old. We are emotional creatures with wants and desires, we feel pain and remorse, we get greedy and we can be charitable. We have love and we have hate, we can be petty and we all have a sense of arrogance due to our inherent god like abilities.
Gods cannot be killed by anything created inside a reality, but gods can be killed by other gods.
Gods do not age, but if they stay on their own for too long (like an eternity) they will fade away and die.
When a god dies, all their created realities vanish.
What rules would you suggest to ensure there is a lasting harmony amongst us gods?
Can there be a lasting harmony amongst us gods?
Or will we end up killing each other off until there is nothing left?