Halo 5: Guardians is a developed by and published by for the . The fifth mainline entry and tenth overall in the , it was released worldwide on October 27, 2015. The game's plot follows two of human : Blue Team, led by , and Fireteam Osiris, led by . When the former goes to track down the construct , Master Chief's loyalty is called into question, and Fireteam Osiris is sent to retrieve him.
343 Industries started to plan concepts and objectives for Halo 5 shortly after the release of its predecessor, . In late 2012, the team set out goals for the game, including larger campaign and multiplayer areas. Like Halo 4, it uses for character animation. It features new abilities and character designs, but does not feature any offline capabilities or . It has a that scales its to maintain a of 60 frames per second.
announced the game at . The game and its related hardware grossed over 400 million in its first twenty-four hours and US$500 million in its first week, outselling the opening sales of Halo 4, which then held the best-selling record for the franchise. Despite this, it had the lowest opening sales of any Halo game in Japan and the UK. Upon release, Halo 5 received generally positive reviews from critics, with praise directed at its gameplay, visuals, level design and multiplayer modes. However, the game's single-player campaign met divided responses, with criticism directed at its short length, story, writing and ending. A sequel, , will be released in 2021.