Welcome to Raph Koster's personal website: MMOs, gaming, writing, art, music, books.
Welcome to Raph Koster's personal website: MMOs, gaming, writing, art, music, books.

The whole Web
Raph's Website


Essays
These are full-blown essays, papers, and articles.

Presentations
Slideshows and presentation materials from conferences.

Interviews and Panels
Reprints of non-game-specific interviews, and transcripts of panels and roundtables.

Snippets
Excerpts from blog, newsgroup, and forum posts.

Laws
The "Laws of Online World Design" in various forms.

Timeline
A timeline of developments in online worlds.

A Theory of Fun for Game Design
My book on why games matter and what fun is.

Insubstantial Pageants
A book I started and never finished outlining the basics of online world design.

Links
Links to resources on online world design.



Sharkboy Game May 2026

Level after level, he ascended the food chain. He defeated the Mako Bikers in the Turbine Tunnels. He outsmarted the Orca Warlocks in the Coral Catacombs. Each victory made him less Leo and more Sharkboy. His movements became fluid, predatory. His human memories—his mom’s lasagna, his failed math test, his first kiss—faded like old photographs left in the rain.

A cutscene played. Finley, his little brother (a blue reef shark in a hoodie), was freed. Finley hugged him. “I knew you’d come, Sharkboy.” sharkboy game

The fight lasted ten minutes. It was a ballet of teeth and terror. Leo lost an eye. He felt it go dark, the socket a throbbing crater. He lost a fin. He was bleeding, broken, on the edge of death. Level after level, he ascended the food chain

Behind him, through the apartment window, he saw the city. But it wasn’t his city anymore. The skyscrapers were coral. The cars were schools of fish. The people? They were all sharks. Tiger sharks in business suits. Bull sharks as cops. And they were all looking up at the one building that still looked human: his. Each victory made him less Leo and more Sharkboy

The world dissolved into a loading screen: pixelated waves, a chunky 8-bit shark fin, and the tagline: “Eat. Evolve. Rule the Deep.”

Child's Play


A Theory of Fun
for Game Design

Cover of A Theory of Fun

Press

Excerpts

Buy from Amazon sharkboy game


After the Flood

Cover for After the Flood CD

Available on CD
$14.99


More stuff to buy

Gratuitous Penguin 2006 Wall Calendar

Gratuitous Penguin 2006 Wall Calendar
$18.99


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"The world the way they thought it was..."