It is, perhaps, the perfect video game. Simple yet addictive, Tetris delivers an irresistible, unending puzzle that has players hooked. Play it long enough and you'll see those brightly coloured geometric shapes everywhere. You'll see them in your dreams. Alexey Pajitnov had big ideas about games. In 1984, he created Tetris in his spare time while developing software for the Soviet government. Once this alarmingly addictive game emerged from behind the Iron Curtain, it was an instant hit. Nintendo, Atari, Sega - game developers big and small all wanted Tetris. A bidding war was sparked, followed by clandestine trips to Moscow, backroom deals, innumerable miscommunications and outright theft.