Train Sim World 7: BR Class 31 Loco Add-On delivers a focused train simulation experience centered on the historic British Railways Class 31 diesel locomotive. This add-on brings the Type 2 diesel, originally developed in the 1950s as part of the shift away from steam traction, into the detailed environments of the Tees Valley Line. Players operate the locomotive in its BR Corporate Blue livery, complete with accurate performance characteristics suited to secondary passenger duties and lighter freight work.
Gameplay
The core loop revolves around realistic operation of the BR Class 31, including precise throttle and brake management to handle its tendency to slip under load when running in pairs on freight. Detailed cabs feature interactive controls that match real-world layouts, while authentic sound recordings capture the distinctive engine notes and mechanical sounds from the actual locomotives. The included PCA Cement Tank Wagon adds variety to freight runs, allowing players to manage cement traffic between industrial sites and yards. Handling reflects the locomotive's 1000-1499 horsepower range, demanding careful power application on the Tees Valley Line's routes.
Game Modes
Three dedicated scenarios place the Class 31 in specific tasks on the Tees Valley Line, such as shuttling cement wagons in a continuous cycle or handling diversionary freight movements. An interactive training session introduces shunting operations and manual junction control. Timetable mode integrates the locomotive into extended 24-hour schedules, adding multiple additional services that increase overall route traffic. Journey mode includes a dedicated chapter focused on Class 31 operations, guiding players through progressive duties from basic runs to more complex passenger and freight assignments.
The BR Class 31 in Context
Developed by Brush Traction to fill a mid-power gap, the Class 31 saw widespread use across British Railways regions after its introduction. The 31/1 subclass modeled here includes steam heating boilers and headcode displays, with multiple-working capability for paired operations. In the simulation, these traits translate to authentic limitations on steeper or slippery sections, where double-heading becomes necessary for reliable freight hauls. The add-on recreates the locomotive's role at depots like Thornaby, where it handled traffic across the industrial Tees Valley network during its peak service years.
Is It Worth Playing?
This add-on suits players seeking precise diesel locomotive simulation on a UK industrial route. It expands the Tees Valley Line with new rolling stock, services, and tasks without altering the base route's core systems. Steam user reviews show 85 percent positive feedback from a modest sample of 28 ratings, with praise centered on the model's fidelity and sound implementation. The content remains fully compatible with Train Sim World 7, allowing integration into the latest version's service and journey options. Those already invested in the Tees Valley Line route will find the most value through added timetable depth and scenario variety, while newcomers should acquire the required base route first to access all features.
