MJOLNIR is a fictional powered armor suit from the Halo video game series, created by Bungie and now managed by 343 Industries. It is primarily used by the Spartan supersoldiers, enhancing their strength, speed, and durability in combat. The armor is equipped with advanced technology, including energy shields and a heads-up display. The design of MJOLNIR has evolved throughout the series, with various iterations featuring different capabilities and aesthetics. It plays a crucial role in the ongoing conflict against the Covenant and other threats in the Halo universe, symbolizing the strength and resilience of humanity.