The game was adapted into four light novels.

The game was adapted into a 14-episode anime television series, which aired between October 2003 and January 2004.

Later the game was adapted to drawing and collage.

The game has been adapted for other computers throughout the world.

The game has also been adapted into both manga and novel series.

The game was adapted into three manga collections, a novel series, and eight drama CDs.

On September 22, 2010, the game was adapted to be played on Facebook.

The game can be adapted for use with an ordinary set of playing cards (see Go Fish).

Although this is not very common, the game can readily be adapted to three players.

The game has been adapted by psychologists to assist veterans from Iraq overcome the effects of post-traumatic stress disorder.