The Halo Universe is a science fiction setting primarily known from the video game series created by Bungie and now managed by 343 Industries. It features a rich narrative that includes various alien species, advanced technology, and epic battles. Central to the story is the character Master Chief, a super-soldier known as a Spartan, who fights against the Covenant, a coalition of alien races. The universe also explores themes of artificial intelligence, particularly through the character Cortana, who assists Master Chief. The lore includes ancient artifacts called Forerunner structures and the mysterious Flood, a parasitic species. Overall, the Halo Universe combines action, exploration, and deep storytelling.