the soviet union
the soviet union are the one of the biggest human factions and are on the same level of power as the united states. the Ussr works on the concept of communism where everyone works how much they can and receives the amount they need.
space program
despite not starting as grandiose as the Americans the soviets had a lot of success in the space program, like doing the first crewed flyby of mars and first putting a man on the moon.