ウルティマオンライン
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 "", "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".