MUSoSu is a free software project for playing, solving, and generating Sudoku games. It is written in Java and emphasizes both solving Sudokus simulating methods used by hyman solvers and generating Sudoku problems that don't require trial and error methods to be solved. MUSoSu is partly themeable and platform independent.
House Of Mirrors (HoM) is a logic game inspired by Chromatron (from Silver SpaceShip Software). The game consists of a 2D grid in which several types of objects are found, including detectors and mirrors. The goal is simple: light up all the detectors using emitted or reflected rays of light. Usually, you can move and rotate the mirrors but not the detectors. In each level, the choice of available objects is limited. There can be more than one solution for each level. Levels can be created by users in hand-editable XML format and shared with others.
nPush is a logic game somewhere in between Sokoban and Boulder Dash. You need to collect all the gold on the level and reach the exit. To make it hard there are some rocks that stand in your way, and you also have some dynamite to blast them. The main difference from similar games is that you can have multiple player-controlled characters on the screen.
Deep Voyage is a collapse-style game in an underwater setting. The base mechanics are extended with many bonuses, anti-bonuses, and powerups. The game also includes a jigsaw mini-game and partially-interactive animated backgrounds which can be turned into screensaver mode when paused. During the game, the player helps a beautiful mermaid to win the royal garden design competition in Underwater Kingdom. So there is also a garden-building mini-game.
Tombs of the Asciiroth is a puzzle/RPG/roguelike game you can either play in a Web browser or as an Adobe AIR application (available for Mac, Windows, and Linux). It is simple to play compared to most roguelikes, but the provided scenario should allow for some in depth game play. A map editor also exists to create new scenarios.
Brain Workshop is an implementation of the Dual N-Back mental exercise. This exercise is a mental activity that has been scientifically shown to improve your working memory (short-term memory) and fluid intelligence. The game involves remembering a sequence of spoken letters and a sequence of positions of a square at the same time. Brain Workshop includes additional challenging game modes beyond Dual N-Back.