Complex sentence: The History of Computer Role-playing Games (A K Peters Ltd, Wellesley MA, 2008), pg.1 and as a predecessor of the "Ultima" series of games that started Richard Garriott's career.
Split into simpler sentences: The History of Computer Role-playing Games (A K Peters Ltd, Wellesley MA, 2008), pg.1. It was a predecessor of the "Ultima" series of games that started Richard Garriott's career.