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American Truck Simulator v1.4.0 Download Full Review
- Right-click on American Truck Simulator in your Steam library.
- Select Properties > Betas.
- In the dropdown menu, look for the option labeled "temporary_1_40" (or similar naming conventions used for older branches).
- Select it, and Steam will automatically download the v1.40 files. This "downgrades" your game to that specific version.
1. v1.40 is an old update (released March 2021)
- It introduced new lighting, skyboxes, and visual effects.
- Current versions are much newer (1.50+ as of 2025). Running an old version means missing bug fixes, map DLC compatibility, and multiplayer support.
As the sun began to set, casting a golden glow over the desert landscape, Jack pulled over at a virtual truck stop to refuel and rest. He took a moment to grab a bite to eat, chatting with other truckers and exchanging stories of their adventures on the road. american truck simulator v140 download full