A closer look

Moving colorful blocks around is fun, but fighting the Soviet government for software rights is where the real game was played. Because Alexey Pajitnov created Tetris while working for a state-run academy, the USSR owned the rights. When western companies tried to license it, it sparked a massive, convoluted legal war involving Robert Maxwell, Nintendo, and literal KGB agents. The fact that you can play Tetris on your phone today is the result of a capitalist espionage thriller.