Hmm. A very interesting setting! I would like to join.

Kingdom concepts:

* A terraformed pleasure world that was once ruled by a hedonistic despot and his followers. Now inhabited solely by genehacked demihumans (humans with animalia traits and genetic coding) that live among paradise resorts and ruined arcologies. A collection of slaves, pleasure servants, genecoded workers, and only a pithy few that could be called leaders or warriors, now left to their own devices.
* A civilization living within a ancient ark-ship, endlessly toiling to reach their promised land "at stars end". They worship the ship, and the ship is their whole world. Yet there is a secretive order that actually leaves the ship, and know of how much peril their journey is really fraught with.
* A bored and hedonistic former warlord deciding to take a old terraforming engine and vat-cloning system and deciding to go build a empire after killing all his old enemies.
* A domain ruled by a despotic warlord whose rule of his star system and cities of cities built upon landships and mobile space habitats is marred only by a rebellion of a number of outlying settlements. To find resources and continue to fuel the war, expeditions are sent among the stars. But will the war ever end? Does the Emperor even want the war to end?

Any of these sound good for a kingdom? I'd be ready and willing to play any of the above.