Train Simulator: D&RGW SD9 Loco Add-On delivers a focused simulation experience centered on the EMD SD9 diesel locomotive in Denver and Rio Grande Western livery. This add-on expands the core train simulation platform on PC by introducing a six-axle heavy yard switcher known for its role in North American rail operations during the mid-20th century. Players engage with realistic controls and route-specific mechanics that emphasize freight handling and switching tasks in mountainous terrain.
Gameplay
The EMD SD9 operates as a 1,750 horsepower C-C diesel road-switcher powered by a two-stroke 567C V-16 engine. Its design extends the capabilities of earlier four-axle models through increased lugging power and reduced axle loadings suited to demanding yard and transfer duties. In practice, the locomotive handles heavy switching and local freight services, with particular attention to the Provo, Salt Lake City, and Ogden areas where the original units served. Advanced braking systems receive custom scripting that aligns with steep grades and operational demands on the associated route. Freight consists include mill gondolas that integrate into cargo movements, allowing for authentic load management during runs.
Game Modes
Quick Drive support enables the SD9 to operate on any compatible route within the broader simulation environment, providing flexibility for freeform driving sessions without fixed objectives. Dedicated scenarios tie directly to the Soldier Summit route and focus on yard assembly, preparation tasks, and mill-related freight operations. These include Assembling the Road, Preparing the Mill, and It's Mill Time. Additional community-created content expands options through ongoing workshop contributions that add varied routes and objectives over time.
Locomotive Details and Route Integration
The SD9 appears in the traditional black and orange scheme with zebra stripe ends and small Rio Grande lettering on the hood sides. A total of ten such units served the Denver and Rio Grande alongside earlier SD7 models, all originally deployed from the Provo base. The add-on pairs the locomotive with mill gondolas to support freight traffic flows, while the braking implementation enhances control during descent and switching maneuvers specific to Soldier Summit conditions. Download size remains modest at 205 megabytes, keeping installation straightforward for users already equipped with the required route.
Is It Worth Playing?
This add-on suits enthusiasts of detailed rail simulation who seek historical accuracy in locomotive handling and yard operations. Mixed feedback on the Steam platform reflects appreciation for the external modeling and functional cab alongside notes on audio elements that rely on reused assets. The content centers on single-player scenarios and Quick Drive sessions rather than broad multiplayer features, making it a targeted purchase for those invested in the Soldier Summit environment. Continued availability through digital storefronts supports ongoing access for players building collections of period-specific rolling stock.
