S.J. Mueller - is a video game director. S.J. Mueller began his career in 2011 and has worked for companies such as Daybreak Games Company and Daybreak Game Company. S.J. Mueller's first game was DC Universe Online which was released 13 years ago. Best Game S.J. Mueller contributed to was DC Universe Online. S.J. Mueller's latest work is DC Universe Online which was released 13 years ago.