It would take 78 years to try them all.
More than four million user-created levels have been shared around the world in PlayStation 3 DIY platformer LittleBigPlanet, publisher Sony has announced.
Product manager Alex Pavey told the PlayStation Blog that 4,141,742 stages have been uploaded globally.
According to his calculations, if you played the game solidly for 12 hours a day, giving each stage five minutes of your time, it would take 78 years to try them all out.