While there is no "portable" version of Euro Truck Simulator 2 (ETS2) officially released by SCS Software 1.41 update

The Hard Truth About "Euro Truck Simulator 2 Update 1.41 Download Portable"

Let’s address the elephant in the cab. SCS Software does not release an official portable version of ETS2. The game is distributed via Steam (using Steam's DRM) or directly via their website (using serial keys).

Cabins and Cargoes

Alongside the map rework, 1.41 introduced subtle but impactful gameplay additions:

Before downloading and playing the update, make sure your computer meets the minimum system requirements:

Alternative Sources

"Missing Executable" Error

• Cause: Your USB drive letter changed (E: vs F:).
• Fix: Re-add the library folder in Steam settings or use the .bat script with relative paths.

Installation Steps

Via Steam: If you're playing on Steam, updates are usually automatic. Steam will notify you when an update is available, and it will download and install it for you. Make sure your game is set to update automatically.