If the map loads but immediately crashes, it usually means the game can't find the "HofDatei" (Company file).
There is a widespread misconception that the official "London" add-on by Aerosoft is free. It is not. That DLC is a premium product costing approximately £30-£40. However, the modding community has created several free alternatives that cover specific boroughs, historical eras, or fictionalized versions of London. Omsi 2 London Map Free Download
, developed by Aerosoft and Studio Polygon. It is not legally available for free anywhere. It typically costs around £30-35. If the map loads but immediately crashes, it
An upcoming and highly anticipated freeware project aiming to bring even more of the capital to life. How to Install Your Free London Map or fictionalized versions of London.
: Hosts various UK maps, including the South London Project.