The game is listed in the Club 100 Library for the TRS-80 Model 100.
A BASIC source for Apple IIe exists. This requires a IIe because of the lower-case characters.
Jim Gerrie has created a version of the game for the TRS-80 MC-10.
Other ports of the game include a browser version.
There is an MSX version of the game.
[+] Users who have solved this game
[+] Users currently playing this game