Tetris is a Soviet tile-matching puzzle video game originally designed and programmed by Alexey Pajitnov. It was released on June 6, 1984, while he was working for the Dorodnicyn Computing Centre of the Academy of Science of the USSR in Moscow. He derived its name from the Greek numerical prefix tetra- (all of the game's pieces contain four segments) and tennis, Pajitnov's favorite sport.

Tetriminos are game pieces shaped like tetrominoes, geometric shapes composed of four square blocks each. A random sequence of Tetriminos fall down the playing field (a rectangular vertical shaft, called the "well" or "matrix"). The objective of the game is to manipulate these Tetriminos, by moving each one sideways and rotating it by 90 degree units, with the aim of creating a horizontal line of ten blocks without gaps. When such a line is created, it disappears, and any block above the deleted line will fall. When a certain number of lines are cleared, the game enters a new level.

Tetris X is a tetris game with 2 game modes: Battle & Classic mode.
In the battle mode you can play up against 3 human players or against the computer.
In the classic mode the player can play the classic one player tetris with 4 different difficulty levels (easy, normal, hard & expert) and 4 different music: Technotris, Kalinka, Troika & Silence

• First person perspective
• 2D graphics
• Cartoon graphics
• Tetris theme.