Simplicity in rules, and a wide range of complexity in levels, from a no-brainer rookie level to an astonishing world-cup stage for professionals (with gazillions of invested work hours in most cases).

All other things, like design, effects or even, background story only follow the simplicity based user experience, and, in reality, add very little to the game’s value.

Wired Magazine is now (in cooperation with the creators of Bejeweled creator Jason Kapalka) revealing the secret of addictive games. In not more than a few paragraphs (simple, isn’t it?)

• Bejeweled Creator Spills Secrets of Addictive Games