If you need to revert to version 1.35 specifically, you can select it from the Steam Betas menu. The version may be listed as temporary_1_35 - 1.35 for incompatible mods . By selecting this, Steam will download the necessary files to revert your game to that version.
Here is the step-by-step process to set up and access version 1.35:
Players could finally buy, customize, and manage their own shipping container chassis. Euro Truck Simulator 2 1.35 Download
The stunning Mediterranean island was added as a free addition for Italia DLC owners.
Overview
Close the properties window. Steam will automatically begin downloading the files to downgrade your game to version 1.35.
It introduced the personal goal tracking for events. It paved the way for the Beyond the Baltic Sea expansion. If you need to revert to version 1
To download Euro Truck Simulator 2 1.35, follow these steps: