The game is officially licensed "Apple II Graphics Package (A2-3D1)". Published the year before in 1979, as sophicated 2D/3D high resolution graphics wireframe animation package written in assembly language and the supplied technical manual gave details on usage on non Apple II computers. Two add-on disks were made: A2-3D2
and Saturn Navigator (A2-3D/A)
The Apple II disk floppy release added a few in-game improvements after suggestions given by users of the tape version, while requiring extra memory 48Kb. Features: Downward View, enhanced Crash Detection, Manual Reset at anytime by a single keystroke, Micro Altimeter better warning of an impending crash and Aircraft Damage easier to determine if shot down.