Even though in a video game we got sound and image, the use of the former is more of a secondary component, since the latter overshadows it in a great degree. With this project the goal of a sound orientated game is achieved, in which the sound forms the peripeteia and the handling of it. Reality, "blends in" with the virtual world of the game, providing the possibility of compositing an augmented world, which exclusively becomes perceivable by the participant solely through his sense of hearing. The protagonists of the game, are the players and the "Eidola". The sound is substantially the connective link between the two, while at the same time it serves as the bidirectional path of interaction between them.