To get your simulation up and running, follow these standard installation steps:
If you are looking for specific, recent, or heavily modified versions of ETS2, keeping the game updated to the latest Steam version is generally advised, though 1.34 remains a classic milestone in the game's evolution. If you have questions, please tell me: Are you using or a non-Steam version? Do you have specific map DLCs you are looking for? Are you planning to use mods ? I can provide tailored instructions for your setup. ATS and ETS2 Update 1.34 - SCS Software's blog