For research purposes, I need an open-source game (or engine) which uses GLSL version 330 or newer. I would be very grateful if someone could point me in the right direction. The project is even more suitable if it uses GLSL directly without any abstraction layers.
It doesn't need to be a specific genre - but it would be nice if it feature possible up-close animation - like most FPSes do and other kinds of movement. It also needs to run on Linux.
Thanks in advance for your help.
Edit: even a demo scene will work great for these purposes.