Tetris is a very popular falling blocks puzzle game, released on a large spectrum of platforms. Alexey Pazhitnov originally designed and programmed the game in June of 1985, while working for the Dorodnicyn Computing Centre of the Academy of Science of the USSR in Moscow. Pajitnov has cited pentominoes as a source of inspiration for the game. He derived its name from the Greek numerical prefix "tetra-" meaning four, as all of the pieces contain four segments.
User the bottons accross the top to select a Tetris game.