Halo

Halo is an American military science-fiction game franchise launched in 2001 by Bungie and Microsoft, later led by 343 Industries. The series follows supersoldier Master Chief and artificial intelligence Cortana through humanity's wars with the Covenant and ancient Forerunner technology. Halo became a flagship Xbox franchise spanning games, novels, television and extensive action-figure lines. Halo product records link characters to manufacturers, product variants, and dated releases.