more than two teams?
I have been thinking about it, and somebody suggested more than just 'light' and 'dark', what about multiple teams? I don't even mean they all would fight each other (because that might make balance issues) but like perhaps two different dark citidels on teams that are technically different teams, but still on the same side?
Alternativily, you could bring in a 3rd faction that is the neutral party, similar to the creeps in DotA. A group of Demigods that just want to cause trouble, so they sit off to the side or in the middle and cause trouble for players. They could have their own victory condition involving death count time limit or something.
Or as it turns out, there is already a thread:
http://forums.demigodthegame.com/331539