Koster attended Washington College in Chestertown, Maryland, receiving a Bachelor's degree in English (Creative Writing) and Spanish in 1992. The same year he became involved with MUDs as a developer of Worlds of Carnage, then in 1994 moved on to become implementor of LegendMUD, where he was known as Ptah. He also played MUME for a time. On 10 May 1992, he married Kristen who would later work alongside him at Origin Systems as a game designer.

In 1995, he received a Master of Fine Arts in Poetry from the University of Alabama in Tuscaloosa, Alabama, and joined Origin Systems as the lead designer of Ultima Online. Koster was also the lead designer of The Second Age, Ultima Online Live, and an unannounced and cancelled title until 2000, when he joined Verant Interactive in Austin as the creative director of Star Wars Galaxies.

Promoted to chief creative officer in 2003, he relocated to Sony Online Entertainment in San Diego where he spent three years primarily responsible for business development. In March 2006, Koster left the company to pursue other opportunities. As of July 2, he is currently working on "something indie ... something that is [hopefully] disruptive and different and not games as usual." [1] This venture was revealed as Areae on 2006-12-15. [2]

Koster is a charter member of the Academy of Interactive Arts and Sciences, and a member of the IGDA, ASCAP, and Omicron Delta Kappa. He is also a frequent speaker at game industry conferences such as the GDC, DICE, State of Play, and E3. He presently lives in San Diego, California with his wife, daughter, and son.

Games

• LegendMUD (emeritus implementor, 1994)
• Ultima Online (lead designer; Origin Systems 1997)
• The Second Age (lead designer; Origin Systems 1998)
• An Empire Divided (creative director; Verant Interactive 2003)
• Jump to Lightspeed (creative consultant; Sony Online Entertainment 2004)
• The Total Experience (creative consultant; Sony Online Entertainment 2005)
• EverQuest II (chief creative officer; Sony Online Entertainment 2004)
• Desert of Flames (chief creative officer; Sony Online Entertainment 2005)
• Kingdom of Sky (chief creative officer; Sony Online Entertainment 2005)
• Brotherhood of the Blade (chief creative officer and editor; Sony Online Entertainment 2005)
• GripShift (chief creative officer; Sony Online Entertainment 2005)
• Frantix (chief creative officer; Sony Online Entertainment 2005)
• Return to Arms (chief creative officer; Sony Online Entertainment 2005)
• Field Commander (chief creative officer; Sony Online Entertainment 2006)

Discography

• After the Flood (1999)

Writing

• A Theory of Fun for Game Design — Foreword by Will Wright (ISBN 1-932111-97-2)
• "Declaring the Rights of Avatars"
• A Story About A Tree, (May 1998), revolving around the Karyn incident
• "The Laws of Online World Design" (GDC 1999 presentation)
• Koster, Raph. "Geek Fun Isn't Frivolous; Alien Swarms of Thundering, Flashing Games Hit Town This Week. They're Here to Make Us Smarter." Los Angeles Times 15 May 2005, sec. M1.
• "As Seen In Modern Lair" (October 2007)

• Hot 100 (Next Generation 2006)
• 100 Greatest Developers (Game Informer 2006)

Interviews

• Pham, Alex. "Game Design; Building a Community--Even a Virtual One--Takes Work." Los Angeles Times 6 Sept. 2001, sec. T5.
• Interview: December 21, 2006 (Amber Night)
• Interview: December 25, 2006 (Stratics)
• Interview: March 22, 2006 (Game Studies)
• Interview: July 25, 2006 (The Escapist)
• Interview: March 10, 2007 (GameZombie.tv)
• Interview: October 11th, 2007 (The MMO Gamer)

In the news

• BBC: Virtual worlds opened up to all (September 19, 2007)

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