Raphael "Raph" Koster (b. September 7,1971) is an American game designer and author who is widely recognized for his work as the lead designer of the "Ultima Online" MMORPG and as the creative director behind "Star Wars Galaxies".
Raphael "Raph" Koster (b. September 7,1971) is an American entrepreneur, game designer, and author of "A Theory of Fun for Game Design". Koster is widely recognized for his work as the lead designer of "Ultima Online" and the creative director behind "Star Wars Galaxies".