Truck Simulator V1.40 Download - American
The headline feature of the American Truck Simulator V1.40 download is the new physically based lighting system. In simple terms, the game now processes light exactly how it behaves in the real world.
Perhaps the most technically impressive change in V1.40, and one that had the community buzzing, was the complete revamp of the mirror rendering system.
In a game where you spend 90% of your time staring at the road and the other 10% checking your blind spots, mirrors are vital. Prior to this update, mirrors utilized a secondary, lower-quality camera render, which often resulted in jagged edges or "fisheye" distortions. V1.40 introduced Screen Space Reflections (SSR).
This wasn't just about aesthetics; it was about immersion. Suddenly, mirrors reflected the world with pinpoint accuracy. You could see the chrome on your exhaust stack shimmering in the reflection. You could judge the distance of that cop car parked on the shoulder with precision. It was a subtle tweak that eradicated a long-standing visual disconnect, pulling the player deeper into the simulation.
If you have a boxed copy or a specific digital distribution, you can download the patch file from the official forums. Search for "ATS update 1.40 patch kit." Apply this only if you know your current build version.
Even a smooth update can hit a speed bump. Here are solutions to the most common complaints after the American Truck Simulator V1.40 download:
The 1.40 update for American Truck Simulator (ATS) , released in March 2021, was a major milestone that overhauled the game's visual engine and introduced several highly-requested vehicle features. SCS Software's blog Key Features of Update 1.40 New Visual Lighting System
: A massive engine update that changed how the game processes light, reflections, and weather. Extended Chassis Options
: Added 4x2, 8x4, and 8x6 chassis types for various trucks, including the Freightliner Cascadia, Mack Anthem, and Kenworth W900. Western Star 49X Update American Truck Simulator V1.40 Download
: Introduced sleeper variants and multiple setback configurations for this truck model. New Viewpoints
: Added scenic viewpoints to the New Mexico and Oregon DLCs. UI Enhancements
: Added full-text city and company search in the job selection screen and improved the vehicle adjustment menu (F4). How to Access/Download Version 1.40
While the game typically auto-updates to the latest version (currently 1.58 as of February 2026), you can still access older "legacy" versions like 1.40 through Steam for mod compatibility. Truck Simulator Wiki American Truck Simulator Version history
To download or access American Truck Simulator V1.40 , you generally , which automatically manages game versions and updates. How to Access Specific Versions (V1.40)
If you are trying to roll back to or stay on version 1.40 (released in 2021) to maintain compatibility with older mods, follow these steps on Steam: Open Steam Library : Right-click on American Truck Simulator Properties Properties from the dropdown menu. : Click on the tab on the left. Select Version : From the dropdown menu, look for temporary_1_40 - 1.40.x for incompatible mods . Steam will then download the specific version files. Key Features of V1.40
The 1.40 update was a major milestone for the simulator, introducing: New Visual Lighting System
: A complete overhaul of how light and weather are rendered in-game. Extended Chassis The headline feature of the American Truck Simulator V1
: Added 4x2, 8x4, and 8x6 chassis options for various trucks. Western Star 49X Update
: New cabin options and configurations for this specific model. New Viewpoints
: Added cinematic "viewpoints" in the New Mexico and Oregon DLC regions. Downloading Mods for V1.40
If you are looking for mods compatible with this specific version, the SCS Software Forum Steam Workshop
are the most reliable sources. When searching, specifically look for "1.40" in the mod title to ensure they work with this legacy build.
Released on March 23, 2021, the American Truck Simulator V1.40 update is widely considered one of the most transformative updates in the game's history. This update introduced a complete overhaul of the visual lighting system, fundamentally changing how the game looks and performs. How to Download ATS V1.40
For most players, the update is handled automatically through the Steam client. If your game hasn't updated or you are looking for this specific version, follow these steps: Open Steam: Navigate to your Library.
Access Properties: Right-click on American Truck Simulator and select Properties. In a game where you spend 90% of
Betas Tab: Click on the Betas tab on the left side of the window.
Select Version: From the dropdown menu, select temporary_1_40 - 1.40.x for incompatible mods if you specifically need this version for older mods.
Automatic Download: Once selected, Steam will begin downloading the 1.40 files. Key Features of Update 1.40
The primary focus of this version was a leap in graphical fidelity and vehicle customization.
New Visual Lighting System: The engine was updated to support physical light models, including new skyboxes and more realistic weather conditions. This system allows for better reflections on buildings and signage, though it is more taxing on GPUs.
Extended Chassis Options: A range of new chassis configurations was added for various trucks, including 4x2, 8x4, and 8x6 options.
Western Star 49X Update: The Western Star 49X received a massive expansion, including two new sleeper cabins and a variety of chassis options, allowing for up to 36 different combinations.
New Viewpoints: Fresh cinematic viewpoints were added across Oregon and New Mexico, marked by green video camera icons on the map. System Requirements for V1.40
Due to the new lighting engine, system requirements for V1.40 and subsequent versions increased compared to the base game's 2016 launch. Minimum (1.40+) Recommended OS Windows 7 64-bit Windows 7/8.1/10 64-bit CPU Intel Core i5-6400 / AMD Ryzen 3 1200 Intel Core i5-9600 / AMD Ryzen 5 3600 RAM GPU GTX 660 / Radeon RX 460 (2GB VRAM) GTX 1660 / Radeon RX 590 (2GB VRAM) Storage
Here’s a comprehensive write-up for American Truck Simulator V1.40, suitable for a blog, forum post, or download guide.