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Raph Koster

Raph Koster (San Diego, CA) is the Chief Creative Officer for Sony Online Entertainment and author of the bestselling book, A Theory of Fun for Game Design. For many years he has served as a lead designer for teams building online virtual worlds. His first job was as a designer working on persistent worlds at Origin Systems. His last project there was working on Ultima Online, opening the online persistent world market to the general gaming public.