The star of the V1.40 update is, without question, the introduction of the "Visual Environment" overhaul—specifically, the new skyboxes.
In previous iterations, the sky was a static painting—a beautiful one, but ultimately a flat texture draped over the world. V1.40 threw that concept out the window. The developers introduced a brand-new simulated sky system. Suddenly, the horizon wasn't just a line; it was a volumetric space where clouds gathered, drifted, and dissolved in real-time.
For the virtual trucker, this changes the physics of the drive. Sunrises are no longer just a change in lighting; they are events. You watch the horizon bleed from purple to orange, casting long, dynamic shadows across your rig. It sounds minor on paper, but behind the wheel, it provides a sense of scale that the series had previously lacked. The world feels bigger because the sky feels infinite. American Truck Simulator V1.40 Download
The headline feature of V1.40 is the new lighting system. In simple terms, the entire visual engine has been reworked.
If you purchased the game directly from the SCS Software shop: The star of the V1
Buckle up — American Truck Simulator v1.40 is here, and it’s a joyful rev of the driving sim you know and love. Whether you’re a weekend hauler or a daily long-haul grinder, this update brings polish, performance, and a few tasty features that make the open road feel fresher.
Solution: Your mods are outdated. Go to Documents/American Truck Simulator/config.cfg and set uset g_force_online_lint to 0, then launch in Safe Mode. The download is approximately 1
Solution: V1.40 reset controller settings. Go to Options > Controls > Select your wheel profile. If it’s missing, re-run the wizard.
Important: There is no need to hunt for sketchy third-party "cracked" versions of V1.40. The update is live and free for all owners of the base game.
To get the update:
The download is approximately 1.2 GB.