The Cold War Battle for the World's Most Addictive Game. February 21st, 1989. A self-made software magnate with a street hustler's flair, the privileged son of a hard-charging media mogul, and a globe-trotting game programmer land in Moscow within hours of each other. Their goal? To undercut one another and strike a deal with the Soviets for the most lucrative piece of intellectual property to ever escape from behind the Iron Curtain - the rights to the game Tetris. This is the gripping tale behind a game so addictive that scientists termed it the world's 'pharmatronic'.