An exploration of what fun is, and why games matter.

Widely considered a classic.

Used in dozens of university-level programs on game design all around the world.

A go-to text for gamification, educators, trainers, and interaction designers.

10th anniversary revised edition in full color!

For the tenth anniversary of the release of the original book, O'Reilly has published a fully revised edition. There are changes in most every page, bringing the book up to date with the latest science and theory. And it's now in glossy full color!

English edition from O'Reilly, Foreword by Will Wright


Japanese from O'Reilly, Foreword by Masaya Matsuura

Chinese from Posts & Telecom, special foreword for Chinese readers

Korean from Digital Media Research, special foreword for Korean readers

About the author

Raph Koster is a veteran game designer who has been professionally credited in almost every area of the game industry. He's been the lead designer and director of massive titles such as Ultima Online and Star Wars Galaxies; and he's contributed writing, art, soundtrack music, and programming to many more titles ranging from Facebook games to single-player titles for handheld consoles.

Koster is widely recognized as one of the world's top thinkers about game design, and is an in-demand speaker at conferences all over the world. In 2012, he was named an Online Game Legend at the Game Developers Conference Online. Visit his blog at www.raphkoster.com.