Thank you for trying my demo! There are three classes that I have not completed for the class talent trees: Warlock, Guardian, and Berserker. I plan on finishing them and adding functionality to the talent trees soon tm but for now they are just visual representations of my future plans. The camera control is a mimic of world of warcraft, the middle mouse camera is suppose to allow you to look anywhere while running forward, while the right mouse camera moves the camera.