Vunor is a lightweight open source gaming engine.
On its first stage it only supports 2D games, but 3D support is going to be added in the future.
At the current early stage of development of this framework, it supports macOS and Linux desktop environments. Windows support is going to be added in the near future.
Android and iOS support is going to be added at some point.
Contributions are welcome.
You can contact the creator of this framework via email ( raydelto@yahoo.com ).