The collection consists of 45 models. The models are clean, designed with different spacecraft in mind, and easily ported to Unity.
STL (Stereolithography, filesize: 537 MB), OBJ (OBJ, filesize: 537 MB), MAX (Autodesk 3ds Max, filesize: 537 MB), 3DS (3D Studio, filesize: 537 MB), DAE (Collada, filesize: 537 MB), FBX (Autodesk FBX, filesize: 537 MB), SKP (Sketchup, filesize: 546 MB)