Fallout: London is a 2024 total conversion mod developed by Team FOLON. It is based on Fallout 4, the 2015 action role-playing game by Bethesda Softworks. The mod takes place in a post-apocalyptic rendition of London, and is notable for its departure from the series' typical American setting. Reviewers praised the scope and detail of Fallout: London for a free project, praising its use of British locations, themes and cultural references in the Fallout setting, whilst critiquing the mod's bugs and performance issues upon release.