If you prefer not to purchase the DLC, the OMSI community has created several free maps and buses based on London:
: A well-known site within the OMSI community. They might have downloads or links to London addons. omsi 2 addon london free download link
Websites claiming to offer "free" download links for this payware addon are generally unauthorized and carry significant risks: If you prefer not to purchase the DLC,
: Realistic AI traffic, emergency vehicles, postal workers, and dynamic roadworks that affect your driving schedule. Top Free Alternatives for London Driving but ensure they are compatible.
: Although OMSI 2 isn't directly on Steam, some creators share their mods on Steam for various games. You might find OMSI 2 mods there, but ensure they are compatible.