Well I suppose I have to at least *try* to join now.
Probably going with an Earth colony that has outgrown it's humble beginnings. May or may not be caught up in a cold war with the home planet or other, fash-y colonials.
Basic and rough timeline I'm considering. During the early days of expansion, Earth scattered colony across the galactic arm using wormhole technology. Tended to be a one way trip, understandably. Earth was in a state of near-collapse. Think of it as a last hurrah for humanity, as they try to escape a cyberpunk hell of their own making.
The best of humanity was sent out, into the void, to preserve the species against what, at the time, seemed an inevitable end.
Some colonies failed, some didn't, and some went off the rails to an extreme. The third was the case with the colony that would become the Pan-Colonial Soviet. The colonists found themselves unprepared for the realities of an alien world. And there numbers were few. Eventually, certain....measures were taken. An underclass was created-humans modified with feline DNA. Better able to survive and thrive on that alien world. And made to do all the dangerous work as the human colonists lived in ever-increasing ease and luxury.
They really shouldn't have brought a database full of Earth's literary works with them. Discontent was inevitable among this new species of slaves-and for certain members of the depraved wealthy-pets-and the texts found within this database would find their way into the hands of these discontented slaves. Old texts with old names. Marx. Lenin. Mao. Castro. Guevara. You got the idea. It started as an insurgency. Then spiraled from there. By the time the revolution came in earnest, it happened quickly.
Within a few years, the colonial administration was overthrown, and as the USSR did before it, a communist power turned it's eyes to the stars once more.
It seemed only right, for the heirs to Earth's first spacefaring power-to it's first communist power-to follow in the footsteps of history. In terms of tech and specializations...I'm thinking they're big on cloning, genetic modification (within reasonable limits) and industry. Mmmm.
Dem five year plans.
Above. Two essential building blocks of communism. The stellar fleet and a catboy.
My theory is sound.