Halo is a video game franchise owned by Microsoft Studios, managed by 343 Industries (343i), and developed by Bungie. The license for this series was picked up by ThreeA to release figures from the world under the Showcase label.
The Halo universe is the sprawling fictional universe in which all Halo media takes place. Encompassing hundreds of millennia, most of Halo's central events are set in the 26th century of the Gregorian calendar, with humankind colonizing the galaxy only to stumble upon a hostile alliance of aliens known as the Covenant, who, motivated by the power of the Prophets and the promises of paradise after death, are bent on humanity's destruction.
It is this universe where the Halo video game series: Halo: Combat Evolved, Halo 2, Halo 3, Halo 3: ODST, Halo Wars, Halo: Reach, Halo 4, and Halo: Combat Evolved Anniversary take place. In addition to the games, a number of Halo novels and other media including comic books, short films and an anime collection have been released. The media beyond the game series expands into the Halo universe timeline before and after the events of the games, as well as running concurrently with the games' timeline.