Tetris for the CD-i is a conversion of the classic puzzle game. Geometric shapes fall from the top of a playfield to rest on the bottom; fit the pieces together, and the line they form disappears. If the pieces don't form lines and eventually stack up to the top of the playfield, the game is over. Difficulty increases by dropping the pieces faster and faster over time.
This CD-i version of the game features slightly different graphics, video nature scenes at the background while you play and a relaxing soundtrack by Jim Andron. The game play stays exactly identical to the classic.