Train Sim World 6: Thames Valley - Windsor, Henley & Marlow Branch Lines Add-On (2026)
Token-up and tackle a trifecta of Thames Valley duties as no less than 3 routes - the Windsor, Marlow and Henley branch lines – arrive in Train Sim World courtesy of Incredible Trains! Expand your Great Western experience and hop across an iconic trio of tracks aboard Networker Turbo traction.
- Release Date: July 21, 2026
- Developer: Dovetail Games