New Apple-1 Game, Codebreaker Available

Egan Ford has created a new game for the Apple-1 computer.  The game, Codebreaker, is based upon the old game of Mastermind in which a user tries to break the code in the shortest time possible.  The six digit color coded sequence must be solved in a minimum of moves and time.

Codebreaker requires a 16K Apple-1 computer or an Apple-1 emulator such as Marc Ressl’s Open Emulator ( in order to play the game.  Egan has provided a video of the game throughout all stages of the loading and playing at:

You can download the game in either AIFF audio format or in monitor Hex code format.


Hex Code:

The program was developed on the Open Emulator Apple-1 and was developed using CC65 primarily using C and Assembly Language.  The game provides two levels of play, Normal and Pro.

Load instructions for the game:

  • C100R
  • C100: A9*
  • 280.1225R
  • 280R



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Bill Martens

A.P.P.L.E. Chairman of the Board and Club president -- Bill worked for the founder, Val J. Golding and A.P.P.L.E. from 1981 to 1982. In 1999, he began archiving the materials which were distributed and sold by A.P.P.L.E.. That project led to the group that remained of A.P.P.L.E. Bill was involved in the financial industry in Tokyo and has over 20 major office infrastructure projects to his name. In March 2001, he retired to write books and to spend more time pursuing personal interests. As the president of the users group, Bill is in charge of distribution of Call-A.P.P.L.E. magazine as well as the organization of this web site. Bill currently resides in Tokyo, Japan and Shelton, Wa splitting time between the places.