Combine trivia and strategy in iKNOW Mini - Amazing Earth. This game combines a trivia game and a strategy game for tons of fun. First you hear the question, then you can choose how you much help youd like to answer it. Then you get to guess how everyone else will fare. This edition has questions all about our Amazing Earth. Can be used as an extension of the original board game or played as a stand-alone game. For 2 to 4 players. This game is for ages 15 and up.