As for gratis (free) download options, I couldn't find any reliable sources that offer Euro Truck Simulator 2 version 1.3 for free. Be cautious when searching for free downloads, as they might be:

If you already own the game on Steam and have been forcefully updated to the latest version, but still need V 1.3 for nostalgic or modding purposes, you can use Steam's beta branch feature. Right-click Euro Truck Simulator 2 in your library, select Properties , go to the Betas tab, and select the older desired build from the dropdown list. Official Patches (For Standalone/Non-Steam Versions)

You searched for a "fix". Games, especially heavily modded ones, crash. Here are the most common fixes for ETS2 issues, most of which are free and simple.

Let’s say you actually a legitimate physical copy or a digital key for version 1.3 from 2013. You can upgrade to the modern version for free.

of the game and then apply the 1.3.1 patch before adding any mods back one by one. Remove Incompatible Mods

If you are trying to resolve a or need help finding a particular graphics setting for your hardware, please share those details. I can provide the exact steps to get your truck back on the road. Share public link

If you own the game on Steam, you can often "downgrade" your version by going to Properties > Betas and selecting the desired legacy build from the dropdown menu. Enhancing the v1.3 Experience

Right-click the ETS2 executable file ( eurotrucks2.exe ) and select Run as Administrator . This bypasses Windows permission restrictions that often prevent the game from saving settings or reading mod data.

Always download patches directly from the official SCS Software Update Page.

Saved games fail to load or crash during the loading screen.