Train Sim World 6: Peninsula Corridor: MP15DC Switcher Loco

The Peninsula Corridor: MP15DC Switcher Loco add-on for Train Sim World 6 was developed and published by Dovetail Games and released on October 16, 2025. This DLC expands the experience of the Peninsula Corridor: San Francisco – San Jose route, introducing the EMD MP15DC, a classic American switcher locomotive designed for yard and local duties. The inclusion of this locomotive gives players a new way to interact with the route, handling freight operations and light industrial services alongside the established commuter traffic. It also adds new timetabled services and scenarios tailored to the locomotive’s strengths, broadening the gameplay beyond passenger runs.

The MP15DC itself is a four-axle, 1,500-horsepower diesel-electric locomotive built by Electro-Motive Division between 1974 and 1980. It was a versatile engine, often seen in switching roles and local freight work across North America, and this version has been carefully recreated with authentic sounds, control systems, and detailed cab interiors. Within Train Sim World 6, players can operate the MP15DC on a variety of tasks, including switching cars at the San Jose yard, assembling freight consists, and performing track maintenance and rescue duties. Its compact size and responsive handling make it well-suited to the more intricate and operationally demanding sections of the route.

Dovetail Games promoted the MP15DC add-on through its usual marketing channels, including social media posts, community blog updates, and Steam store announcements. The promotional material emphasized the authenticity of the locomotive’s handling, the realism of its sound design, and its role in adding operational depth to the existing Peninsula Corridor route. The developers also highlighted that the DLC required the base Peninsula Corridor route to function, reminding players that the switcher was intended as a complementary addition rather than a standalone release. Preview screenshots and short gameplay clips showcased the locomotive in action within rail yards and industrial zones, generating interest among freight operation enthusiasts.

Reception to the MP15DC add-on was generally positive within the Train Sim World community. Players praised the locomotive’s modeling and attention to detail, with particular commendation for its realistic physics and traction characteristics. Many fans appreciated the opportunity to expand the freight side of the Peninsula Corridor route, which had previously focused more on passenger services. Some feedback did touch on the age of the base route and its dated visuals, but most players agreed that the MP15DC brought fresh life and playability to it. Overall, it was regarded as a strong addition to the Train Sim World 6 line-up, appealing to players who enjoy complex yard operations and industrial realism.