Train Sim World 6: CSX SD40

The New Journeys – CSX SD40 Add-On was developed and published by Dovetail Games. Released in 2025 for Train Sim World 6, it brings forward the classic SD40 diesel locomotive to the Sand Patch Grade route in a heritage CSX Blue & Gray livery. This DLC requires the Sand Patch Grade route add-on to function and is presented as a “TSW Compatible” content piece, meaning that while it originates from earlier versions of the series, it has been updated for the new core features and engine improvements of Train Sim World 6 without altering its fundamental design. Its inclusion in the latest title gives players the chance to experience a well-loved locomotive in a modern technical environment.

In terms of content, the DLC offers a highly detailed cab interior, true-to-life performance, and three dedicated scenarios based on the Sand Patch route. The SD40’s controls have been carefully recreated to reflect the operational realism that Dovetail Games is known for, providing both experienced drivers and newcomers a satisfying balance between challenge and accessibility. The add-on also supports substitution on SD40-2 timetable services, allowing the SD40 to be used interchangeably across various freight workings. Players can further incorporate the locomotive into the Scenario Planner, Livery Designer, and Creators Club features, ensuring long-term replay value and personalisation options.

Promotion for the CSX SD40 add-on followed Dovetail’s established strategy, with teasers and official previews shared across community forums, social media channels, and YouTube developer streams. The launch campaign leaned into nostalgia and authenticity, presenting the SD40 as a celebration of American freight heritage. It was also offered at a discounted price during its release window to encourage existing Train Sim World fans to expand their collections. While the marketing focused less on technical novelty and more on classic diesel power, it effectively reminded the community of the locomotive’s enduring legacy within the series.

The add-on has been warmly received by players who appreciate historical U.S. freight operations and detailed locomotive simulations. Early impressions have praised the SD40’s visual fidelity, audio realism, and its compatibility with the demanding Sand Patch route. In previous releases, the locomotive was noted for its authentic driving experience, though some players requested additional tutorials and more in-depth documentation on its advanced functions. With its reintroduction in Train Sim World 6, the SD40 continues to stand as one of the most iconic representations of American diesel power—faithfully recreated and still capable of challenging virtual engineers with its weight, power, and operational depth.