Gaze beats mouse: a case study.

Michael Dorr (publications) at the Institue of Neuro and Bioinformatics of University of Lübeck modified the open source version of LBreakout to be driven by gaze input using an SMI eye tracker. This was then used in a multiplayer setup where gaze/eye tracking took on the mouse. Source code and more information can be found here.

Click on images for video demonstration.

Related paper:

• Michael Dorr, Martin Böhme, Thomas Martinetz, and Erhardt Barth. Gaze beats mouse: a case study. In The 3rd Conference on Communication by Gaze Interaction - COGAIN 2007, Leicester, UK, pages 16-19, 2007. [ bib .pdf ]