TrackWords for Windows v1.21 is a version of the classic word cube game in which you try to form words from adjacent letters arranged in a grid. You can choose from three grid sizes (3x3, 4x4 and 5x5). It features a built-in dictionary, the ability to add words to the dictionary, a challenging computer opponent, timed games, high scores, the ability to restrict minimum word sizes for increased challenge, and more.