Tetris is a Russian tile-matching puzzle video game, originally designed and programmed by Alexey Pajitnov and released on 6 June 1984. Its name is derived from the Greek numerical prefix tetra- (all of the game's pieces contain four segments) and tennis, Pajitnov's favourite sport.
- I didn't make much money at first, but I was happy, because my main priority was to see people enjoying my game. Tetris came along early and had a very important role in breaking down ordinary people's inhibitions in front of computers, which were scary objects to non-professionals used to pen and paper. But the fact that something so simple and beautiful could appear on screen destroyed that barrier.
- Alexey Pajitnov, quoted in Phil Hoad, "Tetris: how we made the addictive computer game" (2 June 2014)