Before hitting download, ensure your PC can handle the graphical overhaul introduced in V1.40: Minimum Requirements Recommended Requirements Windows 7/8.1/10 64-bit Windows 10/11 64-bit Processor Intel Core i5-6400 or AMD Ryzen 3 1200 Intel Core i5-9600K or AMD Ryzen 5 3600X Memory Graphics NVIDIA GeForce GTX 660 or AMD Radeon HD 7870 NVIDIA GeForce GTX 1660 or AMD Radeon RX 590 Storage 7 GB available space 7 GB available space (SSD preferred) Expanding the Map: V1.40 Compatible DLCs
V1.40 isn’t a radical rewrite, but it’s the kind of steady improvement that keeps a sim feeling alive. If you care about immersion and reliability — fewer crashes, fewer weird physics quirks, and better visuals — this patch makes long trips across Route 66 and the Pacific Coast Highway more enjoyable.
To lock your game specifically to V1.40 for mod compatibility: Right-click on American Truck Simulator in your library. Select . Click on the Betas tab on the left menu.
: Right-click American Truck Simulator in your library list and select Properties .
Version 1.40 was not just a standard patch; it was a foundational overhaul of the game's engine capabilities. Here are the core features that define this version: 1. The New Visual Lighting System American Truck Simulator V1.40 Download
If you already own the game on Steam, the update is automatic.
Featured the California Rescale/Rebuild , adding new road networks and updated city layouts to the original game map.
: A comprehensive update to road signage was implemented across states like Washington, Utah, and Idaho to improve navigational realism. 4. Implementation and Downloads
With the V1.40 update comes the highly anticipated . While this is a paid expansion, the free V1.40 update brings improvements to the base map as well. Before hitting download, ensure your PC can handle
From the dropdown menu, select .
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
: Added the California Reskin (Stage 1), which significantly improved the visuals of older map areas like the San Francisco Bay Area. The Bad :
The update also enriched the game world itself, making exploration more rewarding and the roads more authentic. Select
Go to the tab to ensure "Always keep this game updated" is selected. Steam will automatically download the patch.
From the dropdown menu, select temporary_1.40 - 1.40.x for incompatible mods .
: New activation points highlight landmarks across different states.
While ATS focuses on the US, the core engine upgrades applied here paved the way for massive world updates. For ATS specifically, this update refined assets and paved the way for future massive DLCs like Texas and Montana by optimizing how the game handles massive open spaces. 3. Chassis Update