The reduction or absence of usual external stimuli or perceptual opportunities, commonly resulting in psychological distress and sometimes in unpleasant hallucinations.
This is the logic used by Eddo Stern, designer of these games, who wants to explore whether a video game can exist without a visual interface. In making these games he kept in mind that even blind people are able to play these games with those people who can see, so he has used the abilities of blind people which benefit them in the game to make the game more interesting for them.
He has brought into account mostly the non visual clues like small electric shocks, vibrations, and different sort of sounds as directions for the players which intimate them about the next move in the game.
The game is going to evolve into a 3D game using Torque, which is the same engine we used in Waco.

To make the game more exciting, it has been pimped with loads of challenges and puzzles. All these things together make games more interactive and offer great entertainment.
Eddo Stern has popped out other similar games too to lure people, especially the blind. They are becoming really common because of their realistic features. Even you should try one.





















