Griddition is described as 'Math puzzle game in which you must test your addition skills across over 190 levels of increasing difficulty and enjoyment, earning trophies and bragging rights along the way. Think of Griddition as Sudoku for the 21st century' and is a Puzzle Game in the games category. There are more than 10 games similar to Griddition for a variety of platforms, including Android, Android Tablet, iPad, iPhone and Web-based apps. The best Griddition alternative is Sudoku Challenge, which is free. Other Griddition like games are Gauguin, Sudoku (FLTK), Sudoku.best and Sudoku by Pink Pointer.