We had to develop a small game for Uni, this is the result (download). The zip includes Windows/MacOS X builds. Feel free to try it out and share.
We recommend using a controller because the keyboard controls are pretty challenging.
Here is a short demo video, with a technical demonstration at the end:
The game is built using Unity3D Version 3.6, we are currently working out some new concepts and thinking about further development of the game.