UXO (ultimate XO Tic Tac Toe) is a new puzzle game that is played on a 4x4 grids with random configs so every single game is different and fun in its own way! You can enjoy UXO in family game time, or you can also enjoy the game by playing with the AIs of varying difficulties. Beware that it is very challenging to beat the best AI in this game! You will also gain experience points by winning against the AIs (+1 for Easy, +3 for Medium, +5 for Hard, and +7 for Expert). Features: * Undo * Save/load unfinished game * AIs with four levels of difficulties * Timer based game