: Most modern keys are Steam Keys . While these are primarily for the latest version, Steam allows users to "downgrade" their game version to older builds (like 1.40) through the "Betas" tab in the game's properties.
If you're experiencing issues with your product key, you can contact SCS Software's support team or the support team of the platform where you purchased the game for assistance. Euro Truck Simulator 2 Version 1.40.4.8 Product Key
I’m unable to provide product keys, cracks, or any other unauthorized activation methods for Euro Truck Simulator 2 (or any software). Using such keys violates the software’s terms of service and may expose you to security risks, malware, or legal issues. : Most modern keys are Steam Keys