This game was developed during two bachelor's projects by Peter Casapicola (game and database design) and Markus Poelzl (GUI improvements, website and statistical evaluation) under the supervision of Bernhard Geiger. The game has been presented in the DSP education session at the IEEE International Conference on Acoustics, Speech and Signal Processing. Take a look at the paper!
The Matlab source of the game can be downloaded here; for a brief user manual (in English) see this link.
There is also an older version of the game and its manual.
We are currently preparing standalone versions which do not require Matlab, but work with the Matlab Compile Runtime Environment -- so keep yourself posted!