Cool! Which one would be closest to Earth?

I haven't yet integrated our solar system into my universe but I have some interesting ideas for it >:3c gonna stay secret for now in case I want to use it later

I'm definitely curious about the various belt structures in the systems. The Rime, I figure, is probably thick with comet trails or other sources of ice, going by the name, but I'd love to know more about that, the Cairn, and the Nuclear Belt.

Would love to hear more about Taragoth and Eta Salva systems, and... well, the lone-planet ones are also intriguing, Mortath and Thevan.

The Rime is basically an ass ton of ice that feeds/floods the planets in the system, making Lutum the swamp planet it is, and Petrichor is either gonna be a hot steamy bog world, or an ocean world. The whole system is classified as wet lol

The Cairn I am not sure about yet but I feel like it will be a place where people leave their dead. The Nuclear Belt is also underdeveloped so far, but I imagine it is full of glowing radioactive rocks and minerals.

Taragoth is classified as the irradiated system due to the immense power of the main blue star, and Eta Salva is the calm system where stuff is relatively quiet and inert.

Thevan is home to Rock Bottom which im not sure about but may become a pirate base or tortuga-esque place. Maybe even a prison planet

Mortath is well... odd, it is a white dwarf that went supernova and created the dark nebula that surrounds the systems, and claims many lives. Voyager Zero is the only remaining celestial body and lets just say it is a beautiful little dwarf planet...

I’ve been admiring your universe for a bit now I’m curious to know if there are any worlds that have intelligent life that aren’t in their space age development of their people. Like medieval or tribal or even pre-industrial. I’ve always found the idea of advance spacefaring races checking out more “primitive” races to be interesting concept

Oooo that’s a good idea :3c for most my planets I’ve assumed that the native population has been uplifted or already reached the space age. Coralis Tau is my most drawn system but the original people there disappeared long before it was rediscovered. Alibax has at least 2 different native peoples and I haven’t done much for other systems. A lot of my planets tho are kinda mixed where a large population is space faring and the rest choose not to. So like on Lutum in the Kaladar system, most of the settlements are still somewhat medieval in the way that they are mud houses and living off the land but they get the odd space age import for some things like certain tools, medicines, and techs. Bliscar also has lots of nomadic people who never leave the planet.
I’ll have to think of some more interesting scenarios for the rest of the planets as I develop them :3

Oooo I love civilizations that fully aware of spacefaring races and even capable of it themselves, but just choose not to. Adds for a lot of nice story beats and interactions. Also I'm a big fan of the "Person From A Primitive Race Getting Thrown Into A World of Advance Technology and Concepts" Trope so that's why I kinda asked this XD

I would love to see more world building from you in the future. It's been very fun to read and catch up on :3