I just want to burble a bit about one of my favourite creatures-slash-natural-phenomena from any ttrpg ever: Starfinder’s Plasma Ooze.
This thing. Found on pages 100 and 101 of the Alien Archive 2 book. It is amazing.
Plasma oozes are, essentially, giant electromagnetic space slimes that are usually found inside the surface of stars, but can also be seen hanging around other electromagnetic phenomena in space. They average 20ft across, and eat electricity to heal themselves, and can be a danger to shipping.
So, from a standing start, we have star oozes. This is already incredible. But then we get another couple of tidbits:
There is a lost, absolutely titanic star ooze wandering around hyperspace for the last several centuries. Growing steadily. It either got ripped into hyperspace when a ship activated their Drift engine too close, or possibly plasma oozes, given that they’re electromagnetic, might have an innate ability to access the Drift. Meaning that they might be Drift capable.
And then for a final touch:
There is a group of people out there calling themselves ‘the Sunkillers’ who specialise in hunting plasma oozes. And I’m wondering … Do they know about the Drift ooze? Do they know about the titanic centuries-old mystery ooze in hyperspace? Because there’s a plotline and a half. Do you want to help a gang of dubiously prepared self-titled ‘Sunkillers’ hunt their white whale in the form of a titanic electromagnetic star ooze through the hyperspace dimension? Because you could do that.
This is exactly the sort of ecology and worldbuilding I deeply enjoy in my science fantasy over here.
Also, again, I just really love oozes.