- HD installer is contained on disk 1. - Approx. 1.5MB HD space is required for HD installation.
PC versions: CGA, EGA, VGA, TandyN.B. Despite adverts and loading instructions in the game manual, the planned C64 version was never released.
 Game concept & coding by George Wald. Graphics by Colin Swinbourne and Kevin Ayre. Music by Angus Murray; sound FX by Steve Collett (Skinnybone Productions) and Oxford Digital Enterprises (ODE).