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 Master - Brain Quizzes - Math Master is a free math quiz game designed for all ages!
Griddition - Griddition is a challenging numbers puzzle where you must fill a grid with numbers, Sudoku-style.
Threes - Threes is an Amazing Challenging Puzzle video game developed and published by Sirvo LLC.