Sites like TruckyMods or the Steam Workshop are generally safer than generic file-sharing sites which may host "leaked" or "washed" files containing viruses. Installation and Setup If you are using a zip file for a mod or a manual patch: How To Upload & Unzip Mods To American Truck Simulator
Players typically look for a manual download of a specific version for a few reasons: Download File American Truck Simulator V1.31.1s.zip
Older hardware may perform more reliably on earlier versions of the game engine. Sites like TruckyMods or the Steam Workshop are
For the first time, visible cables connected the truck to the trailer, moving dynamically during maneuvers. Some high-quality map or truck mods were never
Some high-quality map or truck mods were never updated past 1.31. To use them, you must revert your game to this specific build.
American Truck Simulator (ATS) version 1.31.1s, originally released in May 2018, remains a significant milestone for fans of the series due to its introduction of major mechanical and environmental features. While the game has advanced to versions 1.58 and beyond as of 2026, many players still seek the 1.31.1s zip file to maintain compatibility with specific legacy mods or to revisit the game's state from that era. Key Features of Version 1.31.1s
This update was foundational for the realism now standard in ATS. The most notable additions included: