1. "The Border Feaster" - probably one of the most known creatures. it is not hostile unless you go to far in an area near the destroyed base, "the bone border." it is responsible for destruction of the said base. though it does make very terrifying sounds heard from even inside of your sub.
2. "The Gulper" - a hostile creature that swims in empty areas. it got it's name because of it's large mouth and how it swallowed food whole. it sometimes bumps into submarines
3. "Charles" - charles
4. "The Intruder" - this might just be a bug but while exploring base Angler i randomly died...possibly charles?
5. "The Hopper" - it makes weird sounds that sounds like they came from space. but on the plus side it's not hostile, which is good because it sounds quite big...
6. "The Fangler" (NO THIS IS NOT AN MSM REFERENCE) - the fangler is possibly another bug, but who cares? i was exploring the deep ocean when i heard a groaning sound, similar to the one the Border Feaster makes, and then saw a random light. a few seconds later, the light dissapeared. it could just be a coincidence that a lighting bug happened right as an ambiance played.
7. "The Frog" - wait wrong game
8. "The Sea Stalker" - this is a humanoid entity that resides in the upper sea, just above the floor. it makes sounds that sound like reversed shrieking. I saw a photo of it in base angler and i was like ""hey that looks like it made that weird noise"
9. "The Anxious Blobfish" - this entity is large and appears to have a blowhole. it's blob-fish like gave it its current name and it has very crude teeth. it appears to have tentacles on it's side and hindquarters. it appears on a photograph in Angler.
10. "Glowie" it is an entity that looks similar to a shark although having angler fish-like teeth. its eyes glow in a manner similar to an angler fish's lure.
11. "The Thing" - i don't even know what this is... it looks like it has tentacles? one thing for sure is that this entity is hostile, as the submarine that took the picture of it was found in ruins with bite marks on it.
12. "The Kidney" - The Kidney is a strange organism that is currently held in Angler's cryostorage. it has a spider-like appearance but upon dissecting it it has been revealed the organism had no brain despite being able to move around.
13. "The Fetus" - Another entity kept in cryostorage. Scientists believe it is the skeleton of an infant sea stalker. Mechanical parts from a previous submarine were found lodged in it's ribcage.
14. "The Kraken" - not much is known about the kraken that is in the abyssal plain... but it is responsible for most of the shipwrecks you may find.


(NOTE: most of these are headcanons of what I believe these are. It's completely unofficial and was made for informative and entertainment purposes. Some of these entities are literally just bugs with names, like the space octopus from KSP)