The idea of the gamepad is so entrenched in our mind, it's easy to forget that there are other ways to play video games. No, we're not talking about the PC gamer's keyboard and mouse, or even the traditional arcade stick -- but custom, purpose built controllers made to augment a specific experience. At GDC 2014, we found an interactive gallery full of them. The event, Alt.Ctrl.GDC serves as a showcase for indie game experiences that aren't fully accessible without specialized hardware, but to us, it was simply an alternative arcade of creativity.

http://www.engadget.com/2014/03/22/g...native-arcade/