To download and install American Truck Simulator (ATS) version 1.39
, you should use the official Steam platform. Version 1.39 was a major update released in late 2020 that introduced the Launchpad and a complete overhaul of the Calais area. How to Access Version 1.39
If you need version 1.39 specifically (usually for mod compatibility), Steam allows you to "roll back" your game version:
Open Steam: Go to your Library and right-click on American Truck Simulator. Properties: Select Properties from the dropdown menu. Betas Tab: Click on the Betas tab on the left-hand side.
Select Version: Under the "Beta Participation" dropdown, look for temporary_1_39 - 1.39.x for incompatible mods.
Download: Steam will automatically begin downloading the files for version 1.39. Why use Version 1.39?
Mod Compatibility: Many older map mods or truck skins were built specifically for the 1.39 engine and may crash on newer versions.
Low-End PC Stability: Some users find older versions run more smoothly on older hardware before more intensive lighting updates were added in later patches. Safety Warning
Avoid "full game" download links from third-party sites. These are often pirated versions that lack official SCS Software support, cannot access the Steam Workshop, and frequently contain malware. Purchasing the game via the Official ATS Website or Steam ensures you get the latest security patches and DLC support.
Users looking for "full downloads" on third-party sites should exercise extreme caution.
Before 1.39, ATS looked good. After 1.39, it looked real. This patch introduced:
Meta Description: Looking for the American Truck Simulator 139 download full version? This guide covers everything from the massive 1.39 update features (Colorado DLC, new graphics, sound engine) to safe installation methods and system requirements.