Gamers and people buying Christmas presents snapped up more computer games in 2003 than in any other year.
A mega £1.26 billion was spent on games, and if you include the consoles too, it's more than £2 billion.
Fifa 2004 was the biggest game of the year, selling more than 600,000 copies in the 10 weeks before Christmas, making it a "double platinum" game.
Another 15 games were also really popular, each selling more than 300,000 copies in the same 10 weeks.