Train Sim World 6: BR Class 33

Train Sim World 6: BR Class 33 Add-On is a downloadable content (DLC) expansion developed and published by Dovetail Games. Released on August 26, 2025, this DLC introduces the British Rail Class 33, affectionately known as the "Crompton," to Train Sim World 6. The Class 33 was a diesel-electric locomotive built during the 1960s for British Rail's Southern Region. With a maximum speed of 85 mph and powered by a 1,550 hp Sulzer engine, it became a staple for both passenger and freight services across southern England. The DLC is compatible with Train Sim World 6 on PC, PlayStation, and Xbox platforms.

The BR Class 33 Add-On offers players the opportunity to operate this iconic locomotive on the West Somerset Railway route. The DLC features the Class 33 in its British Rail Blue livery, capturing the authentic appearance of the locomotive during its peak operational years. Players can engage in various services, including passenger and freight operations, navigating the scenic and challenging terrain of the West Somerset Railway. The DLC also includes detailed station models, realistic terrain, and dynamic weather conditions, enhancing the immersive experience.

Promotion for the BR Class 33 Add-On highlighted its authenticity and the unique operational challenges it presents. Dovetail Games emphasized the detailed modeling of the Class 33 and the immersive environments along the West Somerset Railway route. Marketing materials showcased the locomotive in action, illustrating its capabilities and the dynamic environments players would encounter. The DLC was positioned as an essential addition for enthusiasts of British railways and those seeking a more specialized experience within the Train Sim World 6 universe.

Reception of the BR Class 33 Add-On has been generally positive. Players have praised the authenticity and depth the DLC adds to the simulation, particularly appreciating the inclusion of the Class 33 and the scenic West Somerset Railway route. The challenging terrain and variety of services have been highlighted as standout features. However, some players have noted minor issues, such as performance optimization concerns and occasional graphical glitches. Despite these minor drawbacks, the DLC is considered a valuable addition for those seeking a more immersive and historically accurate experience in Train Sim World 6.