For additional content, consider visiting the ETS2 modding community forums or sites. The community creates a wide range of mods (from trucks to maps) that you can download and add to your game legally. However, always ensure you're downloading from reputable sources.
A complete overhaul of the lighting engine, including new skyboxes and extended HDR. Download Ets 2 1.40 Full Dlc
: The game and its DLCs frequently go on sale (often up to 75% off). Steam also provides the "Steam Workshop," which allows you to install thousands of high-quality mods safely. For additional content, consider visiting the ETS2 modding