If you already own the game, Update 1.45 should download automatically through your Steam client .

A functional demo of American Truck Simulator is available for free on Steam to try the game before purchasing.

Avoid third-party "free download" sites or "repacks" (such as those found on forums like Reddit), as these are often unauthorized cracked versions that may contain security risks. Key Features of Update 1.45

To access the 1.45.3 content officially and safely, use these verified methods:

Update 1.45 introduced several significant features and improvements: