Tetris

Tetris , arguably the world's favorite and most addictive video game, was developed in Moscow in 1985 on a computer dubbed the Soviet Electronica-60. Later that year, its creator, Alexey Pazhitnov, adapted it for players worldwide on the IBM PC platform. From then on, it has soared to great success, selling over 30 million copies on Nintendo's Game Boy system alone.

To report bugs visit:
https://github.com/schomery/tetris-game

To learn how to play the game and for FAQs visit:
http://add0n.com/tetris.html