ETS1 was built for older 4:3 or early 16:9 monitors. If the game crashes on launch, locate the config.cfg file in your game directory or Documents folder, and manually change the resolution variables to match your monitor.

Once purchased, the game is tied to your account—no manual email or key entry required.

: If you purchased the game directly from the developer's website in the past, you should have received an official email containing your unique activation key.

When you purchase the original Euro Truck Simulator , the software includes a protective mechanism to prevent unauthorized use. The activation process requires:

The launcher would then ping a verification server to validate the license.

What (Windows 10, 11, etc.) are you trying to run it on?