Campbell left Amiga Power to work at Sensible Software and during 1994 and 1995 he oversaw the development of the Amiga and PC games Cannon Fodder 2—for which he designed all but around 10 of its 72 levels—and Sensible World of Soccer. Campbell built upon his contributions with references to popular culture, particularly the Scottish indie rock band The Jesus and Mary Chain. He later remarked that he was especially pleased when players had: "worked out solutions that I hadn't even thought of. I love games where you can outsmart the designer and get away with it." Previously and subsequently, Campbell designed original games for various other formats including the ZX Spectrum and PC, one of which is a freeware pinball game themed around the Sex Pistols film/album The Great Rock 'n' Roll Swindle.
