Worms are described as "half-people, crude and unshapely and unfinished", "Not quite human. Made of soil and bones, glued together with sticky blood and inspired with thick twyrine".

More about these funky lads and Pathologic, and description from: https://pathologic.gamepedia.com/Worms#Pathologic

8/4/2022 UPDATE I reuploaded this model, as the mesh had some issues loading into Cura. I fixed it up, and split it up for easier printing. Enjoy!

Thanks to Norn Breeder for the suggestion!