When I was working at Tobii I was the main developer for the interactive tutorial experience that greeted the user after the first installation. The application explained how eyetracking works and what the main gaming and desktop features were. It was divided into two applications. One 3D experience where you go through space shooting asteroids with your eyes. And one overview that explains and shows the dekstop features in an interactive way.
This application was also fully localized and branded for our Alienware and Acer Predator integrations. It was also used at CES 2017 to promote tobii eyetracking.