# Train Simulator: Union Pacific DDA40X Centennial Loco Add\-On Summer DB entity ID: fd2fac70\-691f\-4d9a\-af8a\-635738564195 Steam App ID: 222619 The EMD DDA40X comes to Train Simulator, and talk about arriving in style \- with 6,600hp and a mammoth length of 98ft, the DDA40X says it loud and clear: 'if you're gonna have a locomotive, have a LOCOMOTIVE\!'\. The giant DDA40X first ran in 1969, when Union Pacific was getting ready to retire its fleet of gas turbine locomotives and wanted to move its diesel technology forward\. Given an 'X' suffix for 'eXperimental', the DDA40X \(re\-designated DD40X by the Union Pacific Railroad\) was introduced not only to haul heavy freight trains, but also to act as a test bed for new systems which would soon be found on other EMD locomotives\. Externally, the most obvious new design was the full\-width or ‘Comfort’ cab, which became commonplace across the EMD range\. This giant loco also earned the nickname 'Centennial' after it hauled the Gold Spike Ltd on May 10 1969\. At 98 feet long and with 6,600hp, the DDA40X has real rail presence\. Developed by Digital Train Model, the locomotive includes many realistic features such as cab lights, step lights, number board lights and folding mirrors\. Three variations are modelled, including the preserved \#6936\. The locomotive is also Quick Drive compatible, giving you the freedom to drive the Union Pacific DDA40X Centennial on any Quick Drive enabled route for Train Simulator, such as those available through Steam\. Also included are scenarios specifically for the Sherman Hill route \(available separately and required to play these scenarios\)\. Scenarios Four scenarios for the Sherman Hill route: Business Tour Entering Slowly to Cheyenne Orders at Granite Test by Electro\-Motive More scenarios are available on Steam Workshop online and in\-game\. Train Simulator’s Steam Workshop scenarios are free and easy to download, adding many more hours of exciting gameplay\. With scenarios being added daily, why don’t you check it out now\! Key Features EMD DD40X Centennial in Union Pacific livery Three variations – Type 1, Type 2 and Green Hood In\-cab lighting Step lights Strobe light Number board lights Folding front and rear mirrors Realistic instrument readouts Quick Drive compatible Scenarios for the Sherman Hill route Download size: 398mb ## Game information - Type: dlc - Developer: Digital Train Model - Publisher: Dovetail Games \- Trains - Release date: Jan 8, 2014 - Coming soon: false - Free to play: false - Parent Steam app: 24010 - Genres: Simulation - Categories: Single\-player, Downloadable Content, Steam Achievements, Full controller support, Steam Trading Cards, Steam Workshop, Steam Cloud, Steam Leaderboards, Family Sharing - Platforms: windows - Website: Not collected - Screenshots: https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/222619/ss\_f31b6598e6a55e6bcf9c56d74a539a2a7159ae13\.1920x1080\.jpg?t=1728635558, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/222619/ss\_f671c570727b58e76fcfb23b6484622a5d9de754\.1920x1080\.jpg?t=1728635558, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/222619/ss\_57e2af8c21e3d85dbf9c669406c5005c70853591\.1920x1080\.jpg?t=1728635558, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/222619/ss\_0d521ddc189c6a92439ff459229c67b65e1fe7f7\.1920x1080\.jpg?t=1728635558, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/222619/ss\_e49d926735cde7b2f5b4c338ba4965e955811e3b\.1920x1080\.jpg?t=1728635558, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/222619/ss\_393bd12a6132c8f7ba19eb4c72b3b93c8b7b5606\.1920x1080\.jpg?t=1728635558, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/222619/ss\_f0bd30103bfb7be3929f5df69d187062a262bd88\.1920x1080\.jpg?t=1728635558, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/222619/ss\_4ea00bc4a61702a9e321958d9a024b3c71858a63\.1920x1080\.jpg?t=1728635558 - Price: 999 minor units USD; discount 50% - Price country: US ## Observed metrics - Current players: Not collected - Steam review count: 18 - Steam positive reviews: 18 - Steam negative reviews: 0 - Steam positive percentage: 100% - Summer DB rating: No native votes Review filters: \{"language":"all","review\_type":"all","purchase\_type":"all","filter\_offtopic\_activity":0\} ## Player history [Seven-day chart data as Markdown](/api/v1/entities/fd2fac70-691f-4d9a-af8a-635738564195/player-metrics?days=7&format=markdown) · [JSON](/api/v1/entities/fd2fac70-691f-4d9a-af8a-635738564195/player-metrics?days=7) Chart values are hourly observed maxima. The sampled 24-hour peak and missing intervals carry explicit coverage; history before collection is unknown. ## Sources and freshness - Catalog membership: store\_catalog - Catalog observed: 2026\-09\-28T16:58:32\.455488\+00:00 - Details observed: 2026\-09\-28T21:21:48\.827\+00:00 - Player count observed: Not collected - Reviews observed: 2026\-09\-28T21:21:51\.862751\+00:00 Full provenance: \{"urls":\{"price":"https://store\.steampowered\.com/app/222619/","catalog":"https://api\.steampowered\.com/IStoreService/GetAppList/v1/","details":"https://store\.steampowered\.com/app/222619/","players":null,"reviews":"https://store\.steampowered\.com/appreviews/222619"\},"price":"2026\-09\-28T21:21:48\.827\+00:00","source":"steam","catalog":"2026\-09\-28T16:58:32\.455488\+00:00","country":"US","details":"2026\-09\-28T21:21:48\.827\+00:00","players":null,"reviews":"2026\-09\-28T21:21:51\.862751\+00:00","language":"en","editorial":null,"membership":"store\_catalog","observations":\{"price":"b808e7be\-c491\-4237\-995a\-68a8ba75e947","catalog":"79a60114\-8ffe\-4880\-93ad\-6637b34b0330","details":"7fd800b5\-966a\-4c72\-9307\-4b866e262569","players":null,"reviews":"8ffd4ac3\-73ea\-4654\-b6e8\-d9ec74b55279"\},"reviewFilters":\{"language":"all","review\_type":"all","purchase\_type":"all","filter\_offtopic\_activity":0\}\} Native rating methodology: \{"count":0,"average":null,"entityId":"fd2fac70\-691f\-4d9a\-af8a\-635738564195","revision":0,"observedAt":null,"methodology":"arithmetic\-v1","distribution":\[0,0,0,0,0,0,0,0,0,0\]\} Steam reviews are not Summer DB votes. Missing data is not zero. Player counts are observations, not historical peaks. A supplemental record does not establish that a game was delisted. [Steam store](https://store.steampowered.com/app/222619/) · [JSON](/api/v1/games/fd2fac70-691f-4d9a-af8a-635738564195)