Apple II
Business Model Commercial
Minimum CPU Class Required Apple II+
Minimum OS Class Required None
Media Type 5.25" Floppy Disk
Input Devices Supported Keyboard
Number of Players Supported 1 Player

Atari 8-bit
Business Model Commercial
Minimum RAM Required 48 KB
Media Type 5.25" Floppy Disk
Input Devices Supported Keyboard
Number of Players: Offline 1 Player

BBC Micro
Business Model Commercial
Minimum Supported System B
Media Type Cassette Tape
Input Devices Supported Keyboard
Number of Players: Offline 1 Player

Browser
Business Model Freeware / Free-to-play / Public Domain
Technology HTML
Input Devices Supported Keyboard
Number of Players: Online 1 Player

Commodore 16, Plus/4
Business Model Commercial
Minimum RAM Required 64 KB
Media Type 5.25" Floppy Disk
Input Devices Supported Keyboard
Number of Players: Offline 1 Player

Commodore 64
Business Model Commercial
Media Type Cassette Tape, Floppy Disk
Input Devices Supported Keyboard
Number of Players Supported 1 Player

DOS
Business Model Commercial
Minimum CPU Class Required 8088 / 8086
Minimum OS Class Required DOS 1.0 to 2.11
Minimum RAM Required 128 KB
Video Modes Supported 40-column text mode, 80-column text mode, CGA
Input Devices Supported Keyboard

Dragon 32/64
There is no technical information on file for the Dragon 32/64 release of this game. If you have the tech specs for this game, you can contribute them.

Electron
Business Model Commercial
Media Type Cassette Tape
Input Devices Supported Keyboard
Number of Players: Offline 1 Player

ZX Spectrum
Business Model Commercial
Minimum RAM Required 48 KB
Media Type Cassette Tape
Input Devices Supported Keyboard
Number of Players Supported 1 Player


Technical information contributed by Rola (7750), Alsy (17306), jeff leyda (1621), Martin Smith (62998), Pseudo_Intellectual (45531) and formercontrib (159989)