Originally released on June 6, 1984 and designed / developed by Alexey Pajitnov in the Soviet Union, Tetris went on to become the world’s most popular tile-matching puzzle video game to date. Over the years, there have been quite a few people who’ve mastered this game, to the point of being able to play in their sleep. Continue reading to see more.

5. ParadoxTetris

4. Ecksen

3. GrandMaster2

2. Keyboard Tetris

1. Jin8