The ME3Tweaks modding collective released Legendary Edition Multiplayer, a rebuilt and expanded version of Mass Effect 3's co-op mode for the 2021 Mass Effect Legendary Edition remaster. The mod was developed in secret since 2023 and adds a completely overhauled UI, rebaked lighting, upscaled textures, upgraded shaders, HDR support, controller support, networking improvements, bug fixes, and new wave modes including Unified mode, which mixes enemy factions from Geth, Reaper, and Cerberus armies into single waves.
The project comes after BioWare's closure and EA's cancellation of Mass Effect 5. Audemus, a member of ME3Tweaks, said the modding community now feels a heightened responsibility to carry the franchise forward. "I feel as though our responsibility as a modding community has always been to carry the torch for this franchise, with or without an official future for it. But now that the future of Mass Effect has never been more in question, I feel that sense of responsibility more acutely than I ever have before."
Mgamerz, another modder on the project, described the emotional weight of BioWare's shutdown after spending 14 years working on the studio's games. "It's like watching a friend lose a parent - maybe you're not attached, but you feel the secondhand distress." The team previously had embargoed discussions with BioWare and EA on modding, and Mass Effect writer and director Mac Walters allegedly advocated internally for closer ties with modders before leaving BioWare voluntarily in 2023.
The mod supports both custom ME3Tweaks servers and private servers for multiplayer sessions. Audemus expressed hope that Legendary Edition Multiplayer would demonstrate the franchise's value and signal that a passionate fanbase remains invested in the Mass Effect universe.