Hiding data in Tetris

Many kinds of data hiding methods using different cover media have been proposed, several papers use games to do steganography recently. Tetris is a famous puzzle game, and this game randomly generates the tetrominoes pieces to the player. In this paper, we proposed a steganography system for the Tetris game through the generated tetromino sequences. A three phases embedding algorithm is provided to make the stegoed tetromino sequence look like those generated by a normal way. The experimental results show that this system is undetectable.