There isn’t a multiplayer mod for Hogwarts Legacy, and there likely won’t ever be one. The game has no multiplayer functionality at all. Avalanche Software has no plans to add multiplayer to the game, and it’s doubtful they ever will. Hogwarts Legacy was designed to be a single-player title, and it would require a lot of work to add even basic multiplayer.
Will there be a multiplayer mod for Hogwarts Legacy?
There’s no multiplayer mod for Hogwarts Legacy. It’s possible that one could be made, but improbable. Adding multiplayer to a game that’s single-player only is a considerable undertaking. Modders would have to build the functionality from scratch.
There’s a lot stacked against a Hogwarts Legacy multiplayer mod. First, there’s no official mod support for the game. However, Avalanche made it in Unreal Engine 4. This would make adding mods without official support easier than if it were a custom engine.
The game also has Denuvo anti-tamper, which can cause issues with changing the files and adding functionality. While basic mods like texture swaps have been produced already, Denuvo could block the massive changes needed to add multiplayer functionality. However, no major modding group has made a feasibility study or released a statement about the possibilities of adding the feature to the game.