Check out Spider Battle Robot Low-poly 3D model on CGTrader for $15. High-quality mesh by Shreder3D: 34395 polys, 38051 vertices. Rigged, PBR, Textured.
OBJ (OBJ, filesize: 4.69 MB), FBX (Autodesk FBX, filesize: 1.92 MB), BLEND (Blender, filesize: 6.75 MB)