The best-selling video game to date is Tetris, a tile-matching puzzle video game originally released for the Electronika 60 in 1984 and then popularised upon its Game Boy release in 1989. The game has been ported to a wide range of platforms and sold in excess of 170 million units, including 100 million paid downloads on mobile phones and 35 million as sales for the Game Boy version. Minecraft is the only other video game to have sold over 100 million units, with 122 million units sold as of February 2017. Excluding mobile sales, the best-selling video game of all time is Wii Sports with 82.83 million units sold, while Tetris is the fourth best-selling with sales of 70 million units.

Tetris was the first entertainment software to be exported from the Soviet Union to the US, where it was published by Spectrum HoloByte for Commodore 64 and IBM PC. The Tetris game is a popular use of tetrominoes, the four-element special case of polyominoes. Polyominoes have been used in popular puzzles since at least 1907, and the name was given by the mathematician Solomon W. Golomb in 1953.

The game (or one of its many variants) is available for nearly every video game console and computer operating system, as well as on devices such as graphing calculators, mobile phones, portable media players, PDAs, Network music players.

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