Robyn co-founded Cyan Worlds Inc.
(Originally Cyan) with his brother Rand
in 1987. They originally worked on educational children games but decided to go in another direction creating Myst
. It was an instant success and went on to become the top selling PC game of all time. Robyn worked on finishing Myst's sequel Riven
but then left the company to pursue other interests.
He played the character Sirrus in the original Myst.