In the piracy scene, a "PROPER" tag means this release was issued to correct a technical flaw in a previous version released by a different group.
The version number 1.25.25 corresponds to an update released in late 2016, marking a significant milestone in ETS2’s development history. This particular build was packaged by the release group as Euro.Truck.Simulator.2.[v1.25.2.5.Incl.44DLC]-ALI213 , a repack that integrates the game along with 44 downloadable content packs. The naming convention “v1.25.2.5” reflects the patch level, and it’s important to note that this version is from a specific period in the game’s evolution. euro truck simulator 2 v12525 incl 44 dlc new