Old military barrack version 1 ruin 10 Low-poly 3D model is available on CGTrader for $32. Original author: vis-all-3d. Specs: 156360 polys, 156816 verts.
BLEND (Blender, filesize: 85.5 MB), OBJ (OBJ, filesize: 81.6 MB), FBX (Autodesk FBX, filesize: 168 MB), GLTF (glTF, filesize: 463 MB), ABC (Alembic, filesize: 14.9 MB), DXF (DXF, filesize: 75.7 MB), OTHER (Other, filesize: 43.7 MB), PLY (Ply, filesize: 6.63 MB), STL (Stereolithography, filesize: 11.9 MB), JPG (JPG, filesize: 754 MB), DAE (Collada, filesize: 23.3 MB), USD (USD, filesize: 250 MB), PNG (PNG, filesize: 454 MB)