Atari 8-bit
Business Model Commercial
Supported Systems/Models Atari 400/800 Series 
Minimum RAM Required 16 KB
Media Type Cassette Tape
Input Devices Supported Keyboard
Number of Players: Offline 1 Player

BBC Micro
Business Model Commercial
Minimum Supported System B
Minimum RAM Required 32 KB
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 64
Business Model Commercial
Media Type Cassette Tape
Input Devices Supported Keyboard
Number of Players Supported 1 Player

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
Minimum RAM Required 48 KB
Media Type Cassette Tape
Input Devices Supported Keyboard
Number of Players Supported 1 Player


Technical information contributed by Rola (7762), FatherJack (58541), Martin Smith (62938), Pseudo_Intellectual (45679) and formercontrib (159963)