The virtual landscape received a major visual and immersion upgrade with the complete remodeling of joint fire departments across various states. SCS Software updated the physical assets of emergency stations, adding highly detailed fire engines, realistic building designs, and authentic regional branding to make the roadside environments feel alive. 4. Audio Updates and Sound Mixing
There is no isolated "setup.exe" for ATS 1.39 on the official website. SCS Software distributes updates exclusively via (or Steam keys on other retailers). However, if you own a non-Steam disc version, the process differs.
The 1.39 update was a transformative patch that brought massive structural changes to the game's audio, visuals, and map design. Here is what made this version so impactful: 1. The Launch of Colorado DLC
Supporting SCS Software by purchasing the game ensures that the developers can continue creating massive map expansions, licensing real-world trucks, and delivering free structural updates to the simulator. The Verdict: Why Version 1.39 Stands the Test of Time
Many older mods require 1.39 specifically because subsequent updates (like 1.40) introduced major lighting system overhauls that broke older sound and graphics mods.
Using the in-game Mod Manager, arrange your active mods this way to avoid crashes:
To download American Truck Simulator 1.39, follow these steps:
Close the properties window. Steam will automatically begin downloading the 1.39 update files. A Warning Regarding Third-Party Download Sites
While American Truck Simulator has progressed well past version 1.39, this specific update remains a favorite benchmark for many in the trucking community. It struck a perfect balance between performance optimization and feature richness. For users operating older hardware, version 1.39 represents one of the most stable, fluid, and mod-friendly eras of the simulator.
| Feature | ATS 1.39 | ATS 1.48+ | | :--- | :--- | :--- | | | Full support | Full support | | Texas DLC | Not compatible | Full support | | Convoy MP | No (Beta backend only) | Yes (Full sync) | | Lowboy Trailers | Yes (First version) | Yes (Improved) | | Lighting System | Classic pre-1.40 | New calc. & skyboxes | | Mod Stability | High for old mods | Low for old mods |
If you purchased ATS directly from the SCS Software website (the digital download version) or on a retail disc prior to 1.39, downloading 1.39 is trickier.