Explore the world that Josh, a teenage boy affected by social anxiety disorder, created to stay away from the other people, and help him take the right path to overcome his phobia.
Josh is a teen-age boy who lives in his own world as Caleb and Ammiel, his two alter-egos. In Sym every tile has a meaning: they behave as logic gates, changing color depending on nearby tiles. Caleb can exist only in the white world: for him black is solid and white is hollow. For Ammiel is the opposite. Caleb can become Ammiel, but they cannot exist simultaneously.