Since you cannot use Steam Workshop, manually download:
This update introduced a new set of "Omega" cabin accessories and paint jobs, giving players more aesthetic freedom to customize their fleet. The cabin accessories (like mugs, totems, and pennants) added a personalized touch to the interior view, which is a huge part of the immersive experience. euro truck simulator 2 135 apunkagames best
If you have downloaded the files, here is the general process to get the game running: Since you cannot use Steam Workshop, manually download: