Map mods are the easiest way to make the roads in American Truck Simulator feel bigger and less familiar. They add whole regions, extend existing states further than the base game does, rebuild cities with more detail, or clean up small annoyances like a messy ferry route. Install a handful of these and a run you know by heart can turn into something you have never actually driven.
When picking map mods, check the game version they were built for and whether they call for specific DLC, since many of these expansions plug into existing states rather than replace them outright. Load order matters too: some need to sit above or below other maps to avoid conflicts, and running several large expansions together means checking that they were actually built to work with each other.
1. ATS Expansion: Enhanced Map and Dealership Locations
This one layers new content onto existing areas around Ogden, Pocatello, Gillette, Cody and Billings, with dealership networks like Agco, MidWest Imports and John Deere added into the mix. It folds several earlier map files into one package instead of leaving them scattered.
It suits drivers who already know these regions and want more stops and visual variety without jumping to a completely new map. The Louisiana DLC is required for it to work properly.
Download ATS Expansion – Enhanced Map and Dealership Locations on CrashMods · Game version: 1.61.x
2. Reforma Map Expansion: Extensive USA and Mexico Roads
Reforma stretches the drivable road network across both the United States and Mexico, with redesigned cities and reworked scenery along the way. It includes its own map for Baja California, updated license plates and signage, and support for convoy mode.
Good fit for players who want long, varied hauls that cross the border rather than staying inside the usual American states. Traffic behaviour on the Mexican side has also been adjusted to feel more consistent.
Download Reforma Map Expansion – Extensive USA and Mexico Roads on CrashMods · Game version: 1.61.x
3. Universal Russian Localization for Map Mods
Instead of tracking down a separate translation for every map you run, this pack handles Russian text for more than thirty popular map mods in one go, including Reforma, More American Cities, several Alaska and Canada maps, and Coast to Coast.
It is aimed squarely at Russian-speaking players running a stack of map mods. Load it above the maps it translates, and check the specific notes for combinations like Coast to Coast with Beyond to avoid issues in Florida.
Download Universal Russian Localization – Russian Translation for Popular Map Mods on CrashMods
4. Map of Alaska: Expansive Northern Trucking Adventure
This expansion pushes the game world north with fifteen Alaskan cities and over a thousand miles of new road, including the Dalton, Elliott, Sterling and Parks highways. It brings its own climate setup along with arctic touches like snow and ice.
It is suited to players after a change of scenery and tougher driving conditions rather than another flat highway run. It requires the Washington DLC and is set up to connect with Promods Canada.
Download Map of Alaska – Expansive Northern Trucking Adventure on CrashMods · Game version: 1.61.x
5. Sierra Nevada Expansion: Detailed California Map Add-on
This add-on builds out the California map with the Sierra Nevada range, including Lake Tahoe, Yosemite and a recreation of Reno. The roads through the mountains are more demanding than the flat stretches most drivers are used to.
It works well for anyone who wants scenic, technical driving inside a state they already know, with a few rest and fuel stops added along the new routes.
Download Sierra Nevada Expansion – Detailed California Map Add-on on CrashMods · Game version: 1.61.x
6. Western Canada Expansion: Canadian Province Map
This mod carries the road network up into British Columbia, Alberta, Saskatchewan, Manitoba, Yukon and the Northwest Territories, linking a large number of new cities into a connected network rather than isolated pockets.
It is a solid pick for players who want long northern routes beyond the usual American states. It needs all official SCS map DLC installed to work correctly.
Download Western Canada Expansion – Canadian Province Map on CrashMods · Game version: 1.61.x
7. Real Companies, Shops and Billboards Overhaul
This one swaps a batch of vanilla brands, shop names and billboards across every state for real-world equivalents, right down to correct signage for Las Vegas hotels like The Mirage. Shader and lighting tweaks on signs are part of the package too.
It is more of a visual immersion mod than a map expansion, and it is built to sit alongside popular maps like ProMods and Coast to Coast as well as common traffic skin mods.
Download Real Companies, Shops & Billboards – Brand Overhaul on CrashMods · Game version: 1.62.x
8. Reforma Baja Peninsula Expansion: Baja California Sur Map Addon
This addon pushes the Reforma world further south into Baja California Sur, adding Loreto, San Javier and Ciudad Insurgentes along new sections of Federal Highway 1. Expect a mix of desert, coastline and mountain scenery along the way.
It is built to integrate with the main Reforma map and Mega Resources, so it suits players already running that setup and looking to extend the route south.
Download Reforma Baja Peninsula Expansion – Baja California Sur Map Addon on CrashMods · Game version: 1.61.x
9. Coast to Coast Map: Expansive US Driving Experience
Coast to Coast stretches the drivable area across the entire continental United States, with a rebuilt Louisiana and noticeable work put into Texas and the scenery along I-95. It is kept in step with newer state DLC such as South Dakota.
This is the one to grab if you want genuine cross-country hauls rather than another regional add-on. It requires all map DLC, including Colorado, to run properly.
Download Coast to Coast Map – Expansive US Driving Experience on CrashMods · Game version: 1.61.x
10. Caribbean Ferry Killer: Cleaner Ferry Network for the Caribbean Map
This small fix tidies up the ferry routes on TerraMaps’ Caribbean Map, removing connections that do not make sense and redrawing the remaining ones as curved lines so islands are not hidden underneath them. Ferry prices and distances are also brought closer to real-world values.
It is a practical patch rather than new content, meant for anyone already running the Caribbean Map who is tired of a cluttered ferry layout. It has specific load order and DLC requirements depending on whether you also run the Caribbean-Texas Ferry, and it is not compatible with Great America’s map and its add-ons.
Download Caribbean Ferry Killer – Cleaner Ferry Network for TerraMaps’ Caribbean Map on CrashMods · Game version: 1.51.x
Tips for maps mods in American Truck Simulator
- Check the DLC list for each map mod before activating it; a missing state DLC is the most common reason a big map expansion refuses to load or crashes on startup.
- Pay close attention to load order, especially with translation packs, ferry fixes or anything built as an addition to another map, since the wrong order can break roads or UI elements.
- Match the mod version to your current game version where possible, since a map built for an older patch can show broken terrain or missing textures.
- Back up your profile and save before adding or removing large map mods, as changes to the road network can affect jobs and routes already in progress.
- If you run several map expansions together, confirm they are meant to work with each other and not just with the base game, since combining unrelated maps can cause overlapping or missing roads.
Browse all American Truck Simulator mods on CrashMods
