Larian Studios officially ended support for Baldur's Gate 3 in 2024, with founder Swen Vincke declaring the studio would not produce new expansions and would move on to other projects. However, the modding community has disregarded this announcement, releasing at least four substantial custom campaigns since late July 2026, with a fifth already in development. This demonstrates how player-created content can sustain a game long after official support concludes, raising questions about the quality and nature of these fan-made expansions.

The proliferation of modded campaigns has been enabled by third-party toolkits like Moonglasses, which unlock restricted features in Larian's official editor, allowing modders to build new levels, dialogue, and combat encounters from scratch. At least some releases were timed for the BG3 July Modathon 2026, a community event that likely contributed to the sudden glut of content. The quality and scope of these mods vary considerably—some feature voice acting, whilst others focus on lore and exploration—but they remain unpolished compared to official releases, are available only on PC through Nexus Mods, and some are still in beta. Certain mods may also conflict with one another, and they do not influence the broader narrative of the base game.