Zadubadabu while it seems good so far the Immortal Gods and the Nightmare Emperor seem a bit overpowered, they need to be toned down a bit. Also is that avatar Celestia? Personally I prefer Luna.

And the Abh are nice, however getting attacked at first contact is probably not the best way of being introduced to the galaxy.

Edit:
[quote=Palamon]
My only question was about trade.Idk how so many competing empires are going to handle galactic trade and economics. I mean since presumably they all wanna be the biggest empire, does not bode well for a free market does it?
[/quote]

The New Roman Empire does not always conquer anything, only attacking when a faction is weak and if the abilities of that race would be valuable, or if the faction has a world that the New Romans want. Otherwise they are quite happy to trade.