Euro Truck Simulator 2 (ETS2) is a commercial game developed by SCS Software. There is no official "free" zip file version from the developer. If you see a website offering a pre-cracked "ETS2.zip" for free, it is almost certainly a pirated copy. These files carry high risks of:
sell Steam keys that you can redeem within the Steam client. System Requirements for Windows 10 Euro Truck Simulator 2 Zip File Download For Pc Windows 10
While you shouldn't download the game as a zip file, you use zip or .scs files for mods . Once you have the game installed, you can add new trucks or maps by placing their zip files into the Documents/Euro Truck Simulator 2/mod folder on your Windows 10 PC. Euro Truck Simulator 2 system requirements - Can You RUN It Important Warning Before You Download Euro Truck Simulator
For older "non-Steam" retail versions, the developer ( SCS Software ) previously provided installation files that might come in a .zip or multi-part format. However, they strongly recommend the Steam version for ease of updates. ⚠️ A Note on ".Zip" Downloads These files carry high risks of: sell Steam
If you don't have it, install the Steam Launcher.