Robot horse walks 3D model is available on CGTrader for $79. Original author: yarustudio. Specs: 200148 polys, 210330 verts.
MAX (Autodesk 3ds Max, filesize: 130 MB), OBJ (OBJ, filesize: 6.44 MB), FBX (Autodesk FBX, filesize: 13.7 MB), PNG (PNG, filesize: 130 MB), EXR (EXR, filesize: 130 MB), DAE (Collada, filesize: 11.6 MB), 3DS (3D Studio, filesize: 5.18 MB), DWG (AutoCAD, filesize: 12.8 MB)