(There's no video for DesignCAD 3.0 yet. Please contribute to MR and add a video now!)
DesignCAD is a CAD/3D builder/renderer that allows you to create 3D blueprints of structures and plans for just about anything you want. DesignCAD 3.0 also lets you render as shaded 3D surfaces and even Phong shading, which was kind of great for 68K CPU's back in 1991. Be warned tough: mid-sized house plans could take a long time to render, even if you're using a PPC CPU!
DesignCAD_3.0.1.sit (867.73 KiB / 888.55 KB)
DesignCAD v3.0.1 / compressed w/ Stuffit
At least 2MB of free RAM (recommended 3MB or more, depending on your project complexity)
Mac OS 7.x - Mac OS 9.2.2
Emulating this? It should run fine under: Basilisk II