Cillín makes up half of PeatyTurf, the studio responsible for the physics building game The Enjenir. He is an Irish/French engineer living in Scotland, with a background in civil and structural engineering, primarily on nuclear and infrastructure projects. Himself and fellow co-founder Neil Mackenzie (also a civil engineer) have developed The Enjenir in their spare time over the past 3+ years. They are both engineers by day, and game developers by night!