Chess Database and PGN viewer
SJCE - free portable cross-platform graphical chess game, 100% Java.
A cross-platform chess game.
Cross platform Qt4 implementation of popular puzzle game
A classic word guessing game
A Simple Yahtzee like game.
A simple and free chess clock software.
Yet Another Chess ENgine
A web-based Battletech Mech designer
https://github.com/kesara/checkersplus