Halo is a combat fantasy media franchise created by Bungie. Based on the original trilogy of first-person shooter video games. The plot revolves around the events taking place in the life of Master Chief, one of a group of super-soldiers codenamed Spartans, and his companion, the artificial intelligence Cortana. The success of the games has led to the expansion of the franchise into other media: the Halo universe currently spans many books, graphic novels, comics, shorts, animations, and feature films.