One of the most exciting, yet controversial, aspects of the 1.39 Open Beta was the introduction of the . While the truck was physically present in the game files during the beta phase, it was hidden and unavailable for purchase in the dealership. This led to a frenzy within the modding community, as players used third-party tools to unlock and drive the truck before it was officially released in the subsequent patch. This made the 1.39 beta files highly sought after by enthusiasts wanting a sneak peek at the new flagship truck.
SCS Software continuously updates American Truck Simulator (ATS). As of 2025, the game is on versions 1.48, 1.49, or higher. Version 1.39 is legacy content. Consequently, you will not find this version on Steam by default (Steam auto-updates to the latest version). To get the full 1.39 experience, you have specific options which we will cover in the safety and legality section below. american truck simulator 139 download full
Players could finally purchase and customize lowboy trailers, including articulated versions. One of the most exciting, yet controversial, aspects