Chess Database and PGN viewer
Platform independent browser based Str8ts solver
Platform independent browser based Sudoku solver
SJCE - free portable cross-platform graphical chess game, 100% Java.
A cross-platform chess 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
A platform for Internet-based multiplayer games.