NEW WORLDBUILDING PROJECT BABYYY!!!
Concept: World covered entirely in microbial mat and whose macrofauna are pentapods. One of which is a sophont.
1. The world itself is a little smaller than Earth, but is also the third planet from it’s star and has two moons. It has a pretty even climate with no icecaps due to it’s very thick hothouse atmosphere, even despite it’s p crazy axial tilt. It’s atmosphere is similar to Earths but contains a lot more water vapor and methane and less nitrogen. The surface of the planet is covered almost entirely in microbial mat, to the point where actual ground is buried miles deep and the world would be entirely covered in ocean if not for the mats. The only ‘land’ comes from mounds of organic material built up from the sea floor that have grown large enough to finally breach the surface. Names Planet: Backera Bigger Moon: Milcer Smaller Moon: Daunverr Sun: Sentil
As for the macrobiology I’m still working it out but right now there are two basic groupings of terrestrial pentapods. Subject to very likely change.
First are the Eyebacks. Who are most known for uh, having eyes on their back. They also have their gills open on their neck and need to submerge time and again in water to breathe correctly.
2. That group includes this lil beastie, the Foxtrot, who lives up to their namesake being a crafty lil ankle biter. They are a fast lil critter who prowls the coast for small fast moving prey. They are also quite capable swimmers and swap between land and sea whenever they need to grab a snack or avoid becoming one.
3. Another Eyeback is the aquatic Mynar, who uses their big ass nose horn to scrape away at the mats and stir up fresh food. Generally they stay in water only a few feet deep, moving on to find the freshest growth. Their life style leaves them with a coating of their own though, stained by the food they stir up.
Second group are the now tripodial Elytra’s, who have badass lil beetle backs, and have lifted their front two limbs up to use for object manipulation. They are terrestrial but still rely on water for their tadpole larval stage.
4. This is called a Thwap, because they are very aggressive and use those first set of limbs for smacking anything that makes them even slightly uncomfortable. These are predators that focus on terrorizing smaller prey, loosely associating in groups of 3-10 individuals.
5. The SOPHONT!! I have no idea what to name these guys, so ideas are welcome! I just knew I wanted to give ‘em big ole eyes. They are a omnivorous people descended from hypercarnivorous ancestors. Their culture is centered around large families, usually a ‘wife’ and their many ‘husbands’, but the main thing to set them apart from the rest is the amount of care put into raising their offspring. They will have large pools dedicated to their lil babies until they’re ready to be walking around. Not super advanced technologically since y’know, iron and other metals is somewhat inaccessible. But maybe that’ll change, still thinking of how I want to set up the planet.
More to come, I want to develop the biology of the mats a lot more. I got hella good ideas for some biomes I want.






