You're interested in downloading Euro Truck Simulator 2 version 1.45! Here's some information about the game and a few things to consider:

The modding community moves slowly. Many massive map mods (e.g., , RusMap 2.44 , Southern Region 11.0 ) were perfectly stable on 1.45. Newer game versions broke them for months. By freezing at 1.45, players can enjoy a stable, heavily modded map combo without crashes.

Euro Truck Simulator 2 system requirements - PCGameBenchmark

The official method to access Euro Truck Simulator 2 (ETS2) Version 1.45

Before you downgrade, consider these serious drawbacks: