Tch, why conquer space for anyone else? Why march under the banner of the Krynn Syndicate when you could be The Confederacy of Ian? Who could stand up to the economic power of The Michael Empire? And imagine the terror enemies would feel lining up against the Aliciance fleet.
You can now make that happen in Galactic Civilizations III, as the latest update on its way through Early Access added custom factions, not to mention mod support.