Mastermind is a project mainly written in Java, it's free.
Java version of the strategy game Mastermind -- broken by Java updates
This is a Java port of the strategy game Mastermind.
The object of the game is to guess a number, chosen at random.
Each guess will be compared to the target number.
A RED peg means that one of the numbers in your guess exists and is in the correct place in the target number.
A WHITE peg means that one of the numbers in your guess exists in the target number, but not in the same location as it is in your guess.
Run the game by double-clicking the Mastermind.jar Java archive in /dist.
You need to have a Java JRE installed to run this game (you probably do).
The game supports two modes, GUI and terminal. The latest version, however, defaults to GUI and offers no way of switching. A way to choose (probably via args) is in the works.
The algorithm for determining returns was borrowed from Wolfram MathWorld, as credited in the source. (Weisstein, Eric W. "Mastermind." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/Mastermind.html)