Tetris

Tetris was a video game that Toshiko Sato was obsessed with when she was young. It used "Korobeiniki" as its theme music. (AUDIO: Zone 10)

The Sixth Doctor mentioned Tetris to Elder Bones. (AUDIO: Spaceport Fear)

Jacey reprogrammed a star cruiser's navigation computer to play Tetris as part of her plan to kill the members of Pakafroon Wabster. (COMIC: Interstellar Overdrive)

Information from invalid sources
Sutekh was playing Tetris on a video game console when the Fourth Doctor barged into his tomb and broke his concentration. (NOTVALID: Doctor Whoah! 419)