Previously, players could only do quick jobs or external contracts using Freight Market Lowboys. Update 1.39 introduces the highly requested feature of owning your very own Lowboy trailer. You can now purchase, customize, and upgrade various types of Lowboy trailers—perfect for hauling oversized, heavy-duty cargo across the map. 3. The Reimagined Sound Engine
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is currently active. You can access it by following the same steps as above but selecting the public_beta option in the Steam settings. American Truck Simulator on Steam
Update 1.39 for (ATS) is a significant milestone that introduced highly requested features, including ownable lowboy trailers and the legendary Freightliner Cascadia® . While the current version of the game is much further along (v1.58 as of early 2026), version 1.39 remains a popular stable point for players using specific older mods or hardware. Key Features of the 1.39 Update american truck simulator 139 download new
: The user interface is cleaner, making it easier to manage profiles.
This new truck model was added shortly after the initial 1.39 release. Colorado DLC Support:
In the dropdown menu, select (or experimental_1.39 if available). Steam will download the older version. Why 1.39 Still Matters Previously, players could only do quick jobs or
Open your Documents/American Truck Simulator folder and open game.log.txt . Scroll to the bottom to see what caused the crash.
A completely overhauled startup screen that allows players to access Game Options without loading a profile.
SCS continued to refine the sound engine in 1.39, bringing better sound positioning and new customization options for turbo sounds. Additionally, the update included: You can access it by following the same
You can find the base game and all its updates securely on the Steam Store.
American Truck Simulator Update 1.39: Complete Download and Feature Guide
Redesigned Launchpad interface, improved font scaling, and updated map icons.
Click the dropdown menu under "Select the beta you would like to opt into."