Tetris

This is a puzzle casual game that can expand the brain and improve the third degree of vision at the same time. Some people find that games help prevent the occurrence of post-traumatic stress disorder and prevent amblyopia in children. All the falling cubes are composed of four pieces. Because of the mathematical and dynamic nature of this game, it is often used as an exercise subject for game programming. A major feature of this game is that it cannot be played in any physical form, but can only be used in a flat form. This game was originally designed and written by Alexei Pakitnov in the Soviet Union and was first released on June 6, 1984.