Big monster from The Sinking City video game. There are two variations of this monster-explosive and ordinary. If I'm not mistaken, it's based on the concept of https://www.artstation.com/emaloshenkov You can see it in motion here https://www.artstation.com/artwork/EVgvzv
Heavy Ordinary - Low Poly, Marmoset
Heavy Explosive - Low Poly, Marmoset