For those who love mods, 1.40 became the new baseline. Many map mods (like ProMods) and truck mods require 1.40 as a minimum version to function correctly due to the material changes required for the new lighting.
Solution: Verify game file integrity. Go to Properties > Installed Files > Verify integrity of game files. Steam will reacquire any corrupted 1.40 files. Download Euro Truck Simulator 2 Version 1.40
“Golden Hour Challenge”
Download v1.40, take a screenshot of your truck between 6:00–7:00 PM in-game, with the new lighting hitting your paint job. Post it with #ETS2_140Light and tag @SCSsoftware for a chance to be featured on their community page! For those who love mods, 1
For users who do not use Steam (e.g., retail DVD copies or standalone purchases from the SCS Shop), you can download the official 1.40 patch manually. Solution: Verify game file integrity
Where to find it: SCS Software maintains a public patch archive on their official forums. Look for the thread: "Old Patches (Changelog) – Euro Truck Simulator 2."
Steps for manual installation:
Warning: This manual patch only works if your base game is exactly version 1.39. If you have a newer version, you must do a clean reinstall first.