In the video game , a "Reclaimer" is an individual who, whether by chance or by , has been placed in charge of retrieving an item known as the Index and returning it to, and subsequently placing it into a control panel within, a control center on a Halo structure to activate a massive superweapon. The word is first used as a title bestowed upon Master Chief SPARTAN-117 in the video game, , by an artificial intelligence construct, designated 343 Guilty Spark by its creators, the Forerunner.