GhostTrap is a classic 3-in-a-row puzzle game (like Zookeeper / Bejuweled) written in the Scala programming language on top of the JVM Platforms: Windows, BSD, Mac, Linux

Lightweight Java library for animation and animated components development. Also perfect as a graphics engine for 2D games in Java. Platforms: Windows, Mac, Linux

A hybrid of 'Lights Out' and 'Destructo Match'(from Neopets). This is a the Manta project from the YPP Grand Crafting Puzzle Project. See http://forums.puzzlepirates.com/community/mvnforum/listthreads?forum=35 for more details on the GCPP. Platforms: Windows, Mac, Linux

Proposed YPP weaving puzzle. Part of the Grand Crafting Puzzle Project. Pickerel was submitted for GCPP round 1. Mackerel is a variation of Pickerel that was submitted for GCPP round 2. Platforms: Windows, Mac, Linux

G3tr1s is another open-source J2ME clon of Tetris. Fulfill a level quota to get to the next level. Game is finished when all levels have been passed, or a block reaches the top of the block-stock. Various statistics are recorded to hi-score tables. Platforms: Windows, Mac, Linux

FreeNono is an open-source implementation of the Nonogram game -  a logic puzzle in which cells in a grid have to be colored or left blank according to numbers given at the side of the grid to reveal a hidden picture. FreeNono is distributed under the terms of the GNU GPL. Platforms: Windows, Mac, Linux

Remember the word game Boggle? Well we have gone ahead and coded something like it up with a nice GUI that will make you never want to take out those actual letter cubes again! Platforms: Windows, BSD, Mac, Linux

Programmed in Java, this game is a mixture between FreeCell and normal Solitaire. The current version is Beta v.50. Platforms: Windows, Mac, Linux

Open Source implementation of the wonderful puzzle game Fish Fillets from ALTAR interactive. Platforms: BSD, Mac, Linux

A word search maker for teachers, parents and those who enjoy creating puzzles. FindThatWord aims to be the best free wordsearch creation program available with useful features such as clues, hidden messages and automated page layout. Platforms: Windows, Mac, Linux

As you may recall, a Turing-machine is an all-purpose computer. A Turing-machine has a memory that consists of a track or line of data. On the track, a read-/write-head is moving. The read-write head itself is a state engine, which is affected by the input from the track, and which decides what... Platforms: Windows, Mac, Linux

This software is directed to children and school teachers for teaching ortography rules of the English language. Platforms: Windows, Mac, Linux

Enigma Game Level Editor (Egle) is a project to create a level editor for the Enigma game (http://www.nongnu.org/enigma/about.html). Enigma Game Level Editor is made in the Java programming language using the NetBeans IDE. You can view the progress of Egle at:... Platforms: Windows, Mac, Linux

Eternity II is a famous puzzle challenge. This editor allows creation and edition of grids. The editor features solvers and a simple API to enable anyone to plug its own in and see it work live in the user interface. Platforms: Windows, Mac, Linux

A collection of tools related to the game Myst. Most notably, it can transform MOUL/Myst5/Crowthistle datafiles into POTS datafiles. It also allows you to download and install all the fan-Ages. For details see http://dusty.homeunix.net/wiki/Drizzle Platforms: Windows, Mac, Linux

A Rubik's cube game for java capable cellphones (MIDP 2.0). Features: - multiple views: 3D and 2D (also able to run on older cellphones which do not support 3D) - automatic solvers which can solve the cube either step-by-step or completely. Platforms: Windows, Mac, Linux

Superficially, Dominoes on Acid is a solitaire variant of Dominoes with weird colorful tiles. But on a deeper level it is a GUI for natural deduction. Every completed domino is equivalent to a proof of a tautology in classical propositional logic. Platforms: Windows, Mac, Linux

DDRManiak is a clone of the famous Dance Dance Revolution for mobile phones that support FlashLite. Platforms: Windows, Mac, Linux

Very fast and easy to use Java tool for solving and generating Sudoku puzzles. By using Donald Knuths exact cover algorithmus it can not only solve or create the usual 9x9 but also 4x4, 16x16 or even bigger Sudokus in a very efficient way. Platforms: Windows, Mac, Linux

This is an implementation of Donald Knuth's Algorithm X ('dancing links'). This is primarily a sudoku generator and solver, though it can be used to solve other exact cover problems. Platforms: Windows, Mac, Linux