Spaceship blender model, created with a non copyrighted image as reference. You can use it in unity for making a spaceship like game. It is a low poly model and its cc0. you can use it as you want. I am learning 3D modeling so that model might help you in some way.
OBJ (OBJ, filesize: 21.3 KB), FBX (Autodesk FBX, filesize: 68.7 KB), BLEND (Blender, filesize: 545 KB)