Native file blender included easy to use can animated and can use as game assest render cycle
BLEND (Blender, filesize: 1.47 MB), OBJ (OBJ, filesize: 105 MB), FBX (Autodesk FBX, filesize: 30.7 MB), GLTF (glTF, filesize: 47.9 KB), ABC (Alembic, filesize: 2.32 MB), DAE (Collada, filesize: 387 KB), PDF (PDF, filesize: 629 Bytes), STL (Stereolithography, filesize: 66.5 MB)