NovaChess A great program to play chess against the computer. The game offers five different levels: very easy to very difficult. Download it for free.
D3D Chess Full D3D Chess game for beginners and experimented people. Based on an original engine.
Shredder Classic Professional chess program by the nine times world computer chess champion.
Net Blitz Multiplayer chess game with bughouse support
GameBox Play all the popular games, PacMan, Solitaire, PicPuzzle, Tetris, Worm, Pyramid, Black Jack, Yahtzee, Chess, Checkers, Puzzles etc. Post your hisocre and see if anyone can beat it.
AlphaChess AlphaChess is a superb chess game that allows you to challenge other players either in a local game (against the computer or another player on the same computer) or a network game.
Zillions of Games Game system lets you play nearly any abstract board game or puzzle in the world!