John Oestmann - is a video game composer. John Oestmann began his career in 2016 and has worked for companies such as Chris Johnson, John Oestmann and Brad Barrett. John Oestmann's first game was Moirai which was released 7 years ago. Best Game John Oestmann contributed to was Moirai. John Oestmann's latest work is Moirai which was released 7 years ago.