Metal: Hellsinger is a rhythmic first-person shooter video game developed by Swedish developer The Outsiders for Microsoft Windows, PlayStation 5, PlayStation 4, Xbox One, and Xbox Series X/S. It is published by Funcom and was released on September 15, 2022.

Development began in the wake of the cancellation of The Outsiders' previous game, Darkborn. The team decided to use their own music, rather than existing metal, out of both budgetary restraints and the technical need to split the music into layers for the fury meter system. The game was announced in June 2020, initially billed for a 2021 launch, but was delayed to 2022 "in order to meet the high expectations for the game".

The game mixes elements from both first person shooters and rhythm games, drawing particular reference from the rebooted Doom franchise. While navigating the demonic game world, players are faced by a raiment of demons and accompanied by a heavy metal score. Players deal extra damage if their attacks are synchronised to the beat of the music, with additional instruments joining the song as the combo meter increases. This meter can also be maintained by performing other actions, such as dashing and reloading, to the beat. This beat is also represented in environmental elements, such as fire animations, in what the game calls the "natural rhythm of the universe". Additional challenge levels named Torments can be beaten to unlock power-ups.

The game also draws on elements of the bullet hell genre, with large numbers of projectiles in the battlefield in some fights. Players have a high level of manoeuvrability, being able to double jump and dash forwards in mid-air as in Doom Eternal, and manoeuvring is key in those bullet hell segments. The game is divided across nine layers of hell (including the tutorial), each of which culminates in a boss fight against an aspect of the Judge, the game's antagonist.