This specific 3D model, "Medieval house Free low-poly 3D model 13", is an asset made available by "Unknown author".
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The license for this digital asset is "Unknown license".
STL (Stereolithography, filesize: 204 KB), OBJ (OBJ, filesize: 246 KB), GLTF (glTF, filesize: 327 KB), FBX (Autodesk FBX, filesize: 54.5 MB)