In Assassin's Creed Syndicate, London is the city controlled by the Frye twins as they challenge the Templars.
Jacob and Evie Frye arrive in London in 1868, during the Industrial Revolution. They build a gang called the Rooks, liberate districts, and oppose the Templar leader Crawford Starrick, whose organization controls much of the city's political and economic power.
The game uses recognizable Victorian locations, including Westminster, the City of London, Southwark, and the Thames. Jacob and Evie are siblings with different specialties: Jacob focuses more on direct combat and gang leadership, while Evie emphasizes stealth and investigation. The setting is London, not Paris, which is associated with Unity's French Revolution setting, and not Edinburgh, despite the broader British context.