Fuser is a rhythm game developed by Harmonix and published by NCSoft. It was released on November 10, 2020, for Microsoft Windows, Nintendo Switch, PlayStation 4, and Xbox One. Fuser allows players to create DJ mixes from a number of licensed musical tracks, scoring the player based on their remix. The game features both single-player and multiplayer modes as well as the ability to share remixes with other users. Following the acquisition of Harmonix by Epic Games in 2021, Harmonix shuttered the multiplayer servers in December 2022 and removed the game and additional content from sale, while leaving the single player components playable.