Currently in beta testing, Cello Fortress
is a unique combination of a live cello concert and a game, and is intended to be played at events (festivals and such). In essence, Cello Fortress is a twin stick shooter in which four players cooperate using Xbox controllers to destroy as many cannons as possible. However, the cannons are not controlled by the computer, but by a live cellist.
for details - a trailer and several screenshots
have been added in our download section.