The XO traditional paper game is digital now with exceptional and elegant design. Unlike conventional games, you can play XO in the space with three difficulty levels; planet, Galaxy, and Universe. You also have the option to challenge the CPU or one of your friends. Have fun with XO Space! Improve your tactic skills and strategies! Key features: • Designed for tablets and smartphones. • Endless gameplay; no lives to limit your playing spirit. • Free game! • For adults and kids • 3 difficulty levels • Play offline • Small size