His development team, Graftgold, mostly wrote for games published by Hewson Consultants during the 1980s.
At school he was a member of a computing club where he learnt the Algol 60 programming language.
His first game was written whilst he was still employed as a programmer and he handed his notice in when he received his first royalty cheque.
[1] He also wrote a series of articles for ZX Computing between August 1986 and January 1987, called The Professional Touch.
[2] Andrew Hewson had previously written for the magazine but got too busy to do it and Turner replaced them.