If you do not own the game, SCS Software offers a free demo that usually runs a slightly older version. To download the demo for 1.38:
To download Euro Truck Simulator 2 version 1.38, you can use the , which manages version history through its "Betas" system. This version, released in July 2020, introduced major graphical overhauls like SSAO and map updates for Lille. How to Download Version 1.38 Download Euro Truck Simulator 2 1.38
Once the download finishes:
If you are using the Steam version, you can usually access older versions by right-clicking the game in your library, selecting Properties > Betas , and choosing "temporary_1_38" from the dropdown menu. If you do not own the game, SCS