One version is common, at least one other version is rare
 Game design by Argonaut Software. Coding by Christopher Humphries and Peter Warnes; additional coding by Mark Washbrook; intro sequence by Enigma Software and intro written by Steve Chalmers; game front-end by Christopher Humphries and Ian Crowther. 3D graphics system by Peter Warnes, 3D shape design by Danny Emmett and flight dynamics by Christopher Humphries; additional gfx by Paul Reid and Giles Goddard; intro gfx by Kevin Holland and intro animation by Steve Chalmers; artwork by Herman Serrano and Tom Ashton; additional front-end artwork by Ian Crowther; game map by Anthony Smith and Christopher Humphries. Music by Kevin Holland; in-game sound FX by Giles Goddard and intro sound FX by Steve Brown. Disk IO by Adam Polanski; disk loader and decompression routines by Giles Goddard.