ETS2 has an incredible debugging tool. Go to Documents\Euro Truck Simulator 2\game.log.txt . Open it with Notepad. Scroll to the very bottom. The last 10 lines will tell you exactly why the game crashed (e.g., "Failed to load 'trailer_def'..."). This is more detailed than any verification tool.
Steam integrity check
: Verifying your files will not overwrite your custom controls, graphics settings, or save profiles, which are stored safely in your user Documents folder. Share public link file euro truck simulator 2 verified