@Robert_Edwardly @Jens_Rasmussen It's a medium galaxy, set to 0 other AI empires, 5x primitives, 2 fallen empires, 2 marauder empires.
One of the primitives grew up and grew out rapidly and because of another mod (fatherland: colonial empires) had a lot of empires spawn out of it.
Everything that says "Telosian" are splinter groups, breaking off due to ideological differences or slave revolts getting really bad. This all happened before I could even get to them.
I only met some of their newest split-offs, whom I promptly turned into tributary vassals and the only reason they haven't broken away from me despite negative loyalty is because I have a bigger gun.