Sync or Swim began life as an installation that is also a simple listening game, and now exists as a downloadable game for several platforms. The idea is simply to listen very carefully to the repetitive textures and move the knob (using buttons in the software version of the game) until you hear the pattern repeating exactly (i.e. nothing is out of sync). Once you find the sync point, the game will "bloom" into a drone, which crescendos and drops you into a new level, with a new and more complex pattern. If you reach level eight, you get a nice little sonic surprise.