A Halo Ring is a massive, artificial structure in the Halo video game series created by Bungie and later developed by 343 Industries. These rings are designed as superweapons capable of destroying all sentient life in the galaxy to prevent the spread of the parasitic Flood. Each ring is part of a larger network known as the Halo Array. The rings are typically depicted as large, circular constructs with a habitable surface and a unique ecosystem. They are often central to the game's storyline, where players, primarily as the character Master Chief, explore these structures and engage in battles against various alien factions, including the Covenant and the Flood.