Acheron
A moon of Charon Prime, this planetoid was terraformed centuries ago at the height of the Third Imperium. After the last of the Imperial fleets left, the planetary government slowly lost control and the whole of Acheron balkanized: breaking up into regions controlled by various feuding clans and petty dynasties.
But the Wars of Unification ended this, and roughly 200 cycles ago the moon entered into a union with Charon Prime as subjects of the Novus Imperium. While some were lost in the wars and later rebellions, many of the old clan dynasties endure as Lords and Ladies of the realm in the current order.
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Denizens of Acheron have a reputation - earned or not - of being plain-spoken, rough-spun, hardy, irascible (yet simultaneously hospitable) and somewhat miserly. There is some truth to all of this, but it should be added that some of the best calculators, scholars, engineers and soldiers hail from this tiny world.
Aspects
Clan loyalty
Which do you prefer: fast, good or cheap?
Highlanders don’t go down easy