Live Countdown to Release
Token-up and tackle a trifecta of Thames Valley duties as the Windsor, Marlow and Henley branch lines arrive in Train Sim World courtesy of Incredible Trains! Hop across an iconic trio of tracks aboard Great Western Networker Turbo traction.
Train Sim World® 6: Thames Valley: Windsor, Henley & Marlow Branch Lines Add-On releases on Tuesday, July 21, 2026. The countdown above updates live, so you always see exactly how many days, hours, and minutes are left.