Ender's Game is a science fiction novel written by Orson Scott Card. Set in Earth's future, the story follows Ender Wiggin, a young boy who is trained at a military academy to become a commander in humanity's war against an alien species. Ender's Game explores themes of leadership, morality, and the consequences of war. It is a gripping and thought-provoking book that has become a beloved classic in the science fiction genre.