The first game Charles worked on was Inca Curse (published in 1981) then Espionage Island (published in 1981) and Ship of Doom (published in 1982) each were highly successful on the Sinclair ZX81, Spectrum and Amstrad formats.
The first game Cecil worked on was "Inca Curse" (published in 1981), then "Espionage Island" (published in 1981), and "Ship of Doom" (published in 1982). Each were highly successful on the Sinclair ZX81, ZX Spectrum and Amstrad formats.