Train Sim World 6: London Overground Mildmay Line

Train Sim World 6: London Overground Mildmay Line – Stratford to Willesden Junction is a downloadable content (DLC) expansion developed by Incredible Trains and published by Dovetail Games. Released on August 26, 2025, this DLC introduces players to the North London Line, now known as the Mildmay Line under Transport for London (TfL) management. The route spans approximately 12 miles (19 kilometers) and connects the boroughs of Hackney, Camden, and Brent, featuring 19 stations along its path. Players can operate the modern BR Class 378 electric multiple unit, known for its sleek design and efficient performance, providing a realistic portrayal of London's suburban rail services.

The DLC offers a variety of gameplay options, including an 8-trains-per-hour timetable that replicates the frequent stopping patterns characteristic of the Mildmay Line. Players can engage in various scenarios that showcase the challenges of operating a commuter train in a densely populated urban environment. The inclusion of service layers allows for the integration of freight traffic and AI trains from other Train Sim World add-ons, enhancing the realism and complexity of the route. Additionally, the route features multiple mainlines that intersect and cross over or under the Mildmay Line, providing opportunities for players to explore and interact with other parts of the network.

Promotion for the DLC was carried out through various channels, including announcements on Dovetail Games' official forums and social media platforms. The community was engaged through preview streams and discussions, generating anticipation among train simulation enthusiasts. The DLC was made available on multiple platforms, including Steam, PlayStation 5, PlayStation 4, Xbox Series X|S, and Xbox One, broadening its accessibility to a wider audience. The inclusion of a London Overground route was highlighted as a significant addition, appealing to players interested in exploring urban rail operations.

Upon release, the DLC received positive feedback from the Train Sim World community. Players praised the detailed modeling of the Class 378 unit and the accurate representation of the Mildmay Line's stations and surroundings. The route's integration into the broader London rail network was also well-received, offering players the opportunity to connect with other routes such as the Suffragette Line, Southeastern Highspeed, and West Coast Main Line South. The DLC's reception has been favorable, with many considering it a valuable addition to the Train Sim World 6 experience, offering a unique perspective on London's suburban rail services and enhancing the overall simulation.