Ports of Entry: Hewson Consultants

Unknown lead platform:

 

Heathrow International Air Traffic Control

Released for Commodore 64 in July 1984

Released for Amstrad CPC in December 1984

Released for BBC Micro, Electron, and ZX Spectrum in 1984

Firelord

Released for Amstrad CPC, C64, and ZX Spectrum in 1986

Mobygames credits weakly imply that C64 is ported from the ZX Spectrum.

Nebulus

Released for Commodore 64 and ZX Spectrum in 1987

Exolon

Released for Amstrad CPC, C64, and ZX Spectrum in 1987

Stormlord

Released for Amiga, Amstrad CPC, Atari ST, C64, DOS, and ZX Spectrum in 1989

 

In the Mobygames credits, only Amstrad CPC, C64, and ZX Spectrum are by the original designers Raffaele Cecco and Nicholas A. Jones.

Select chronology: 

 

Title	Lead platform	Date	Contemporary ports
Space Intruders	ZX81	1981
Nightflite	ZX Spectrum	1982
Knight Driver	ZX Spectrum	1984
Heathrow International Air Traffic Control	???	1984-6	Same-year releases on various computers
Paradroid	Commodore 64	1985-11
Uridium	Commodore 64	1986-1	Same-year port to ZX Spectrum 1987 ports to Amstrad CPC, Atari ST, & BBC Micro
Firelord	???	1986	Same-year releases on Amstrad CPC and ZX Spectrum Same-year port to C64
Tower Toppler	???	1987	Same-year releases on C64 and ZX Spectrum
Exolon	???	1987	Same-year releases on Amstrad CPC, C64, and ZX Spectrum
Cybernoid: The Fighting Machine	ZX Spectrum	1988	Same-year ports to various computers
Stormlord	???	1989	Same-year releases on various computers