NumberDrop - A uniquely challenging math puzzle game.
Sum Fun - A fun number puzzle game for iPhone and iPad.
HoDoKu - HoDoKu is a sudoku helper written in Java and available in English and German.
Math Search - See posts, photos and more on Facebook.
Threes - Threes is an Amazing Challenging Puzzle video game developed and published by Sirvo LLC.
Yasminoku - Sudoku game and solver totally written in DHTML.