I learned about raylib a while a go and it looks like a nice simple library. I think it should be a good match for the Raspberry Pi. I know you have a version for the Pi, but not everyone will be aware that now Raspbian includes a openGL driver that means you can have accelerated graphics in X window. Love2d works perfectly in X on the Pi now and you can get access to the GPU and easily 60fps. Of coarse, love2d does not have 3D support so that is where I would like to try raylib.
I tried to do an install on the Pi using the general linux desktop guide, but it did not go smoothly. Does anyone know if someone has managed to get a desktop X version of raylib compiled and working on Raspbian? A .deb would be great, but I think that is quite a specialist job.