Su Doku Live is a Su Doku game which is playable in realtime (i.e., players connect to each other) over the Internet or a LAN. It has Cooperative (in which all can see other players' selections) and Competitive (you can see where opponents placed numbers but do not see the numbers) modes. Extras include a puzzle generator, error detection, a Su Doku builder, and a solver.
Sporktris is a clone of Tetris-clones. It is meant to be fun, functional, and pretty, with as little annoyance as possible. It features pretty level backgrounds and colored pieces, customizable keys, high scores, and hopefully everything else you'd expect from a decent Tetris clone.
SmartMines is a minesweeper game for Mac OS X (Tiger and above) with a few features that make it stand out when compared with many other minesweeper games. For instance, it features "smart clicks" that make it easy to both mark and uncover with single button mice. Also the minefield window is resizable, so actually hitting the square you want will not be the greatest challenge.
SudokuToon is a puzzle game based on Sudoku. The game is played by filling the 9x9 grid with numbers from 1 to 9 in such a way that in each line, column or sub-grid of 3x3, the numbers are not repeated You can choose to play with colors or geometric figures and listen to three original musical compositions.