Game engine study project developed by KNTG Polygon. Currently it is in a very early stage of development. PolyEngine currently uses OpenGL 3.3+ only, but might gain support for other graphic APIs (DirectX, Vulkan, Metal) in the future. I’m one of the contributors in this project. You can use it for free, it’s on MIT license.
Download “PolyEngine on GitHub” (2 downloads)