I have a simple workshop request for personal / lore reasons.
A planet that only appears once, and is literally the first planet you enter without your FTL drive:
Ruined earth
This planet is only allowed to spawn once, and is always the first planet you orbit on evac from the tutorial segment.
When you beam down you can see that the entire sky is blocked out by wall blocks of animated writhing tentacles. Mining one gives you a "writhing tentacles block", each block makes an absolutely slimy sound, something akin to this being overlapped: https://youtu.be/LZeNKZOXAOo

The lower floors are all tentacles and tentacle flora, and you can actually see support beams of the protectorate base in ruin, guided by semi-destroyed support beams on the bridges. It also will be home to enemies that try to consume you by enveloping you in tentacles. Humanoids and other races made entirely out of masses on the floor, using a system similar to SSVM's SPOVS, you want to avoid getting close to any that form out of the floor.

This is also where you can find cores in the ruined cities below the protectorate building.

It's all around meant to be a pitch black ruined earth, ravaged by the monster you escaped. If you want to face your fears; start the game WITH the tutorial on and dive into the planet.

If you wanna chicken out and decide not to play the planet, you can choose to skip the tutorial which will instead give you a generic lush planet with mines and a lava core.

I just found it unrealistic and not very lore friendly that you find yourself in a new galaxy system on what was probably very limited fuel, and not be in orbit of the planet you evac'ed from considering very few ships could escape, let alone, fly.