For a game released in 2016, v1.39 looks shockingly current. The addition of secondary vehicle lights (turn signals/emergency lights reflecting on the road) and improved suspension physics makes the world feel heavy and real.
Many of the most beloved mods (like Reforma’s Mexico map, Jon Ruda’s truck packs, and SiSL’s Mega Pack) hit their peak stability with 1.39. Later updates broke some of these mods, prompting users to revert to or seek out 1.39 downloads.
Step 1 – Open Steam and Navigate to ATS Launch Steam, go to your Library, and find American Truck Simulator in your game list. american truck simulator 139 download hot
Step 2 – Access Properties Right-click on ATS and select Properties from the context menu.
Step 3 – Select the Betas Tab In the Properties window, click on the Betas tab on the left sidebar. For a game released in 2016, v1
Step 4 – Choose Version 1.39
Click the dropdown menu under “Beta participation.” Scroll through the list until you find:
temporary_1_39 - 1.39.x for legacy mods
Select it. No password is required.
Step 5 – Let Steam Download Close the Properties window. Steam will immediately begin downloading the 1.39 version files. The download size is approximately 3.5–5 GB depending on your DLCs.
Step 6 – Disable Automatic Updates To prevent Steam from auto-updating back to a newer version, go back to Properties → Updates and set “Automatic updates” to “Only update this game when I launch it”. Then only launch ATS via the .exe in the game folder, not through the Steam shortcut. Step 1 – Open Steam and Navigate to
Step 7 – Launch and Enjoy Once the download finishes, click Play. Your save files from newer versions will not work (downgrading breaks saves). Start a new profile or use a backup of an old 1.39 profile.
When SCS Software released update 1.39 in November 2020, it was a game-changer. Here’s why the community still craves this version: