MiniLight is described as 'Minimal global illumination renderer. It is primarily an exercise in simplicity. But that makes it a good base and benchmark (in some sense) for development and experimentation. And it just might be the neatest renderer around (on average, about 650 lines)' and is an app in the development category. There are more than 25 alternatives to MiniLight for a variety of platforms, including Windows, Mac, Linux, Autodesk 3ds Max and Sketchup apps. The best MiniLight alternative is LuxCoreRender, which is both free and Open Source. Other great apps like MiniLight are MoonRay, Adobe Dimension, POV-Ray and RenderMan.