Sean Masterson - is a video game writer. Sean Masterson began his career in 1997 and has worked for companies such as Sony Interactive Entertainment, Bullfrog Productions, Krisalis Software and Electronic Arts. Sean Masterson's first game was Theme Hospital which was released 27 years ago. Best Game Sean Masterson contributed to was Theme Hospital. Sean Masterson's latest work is Theme Hospital which was released 27 years ago.