Solitile is a game of solitaire, played with "tiles". The goal of the game is to remove pairs of matched tiles until all of the tiles have been removed. The game derives from several similar games, such as "Shanghai", "Gunshy", and "Mahjongg", which are played with Mah-Jong tiles. Solitile plays the same game, but adds new starting layouts and the ability for the player to create new layouts and/or modify the layouts provided. Its default tile set uses "westernized" pictures on the faces of the tiles, but can also use alternate tile sets including a "mahjongg" style set. The licensed version of the game includes over 285 tile sets and 560 layouts.