Crash

[Vøytek]

You can activate it on Steam anyway, you have a key in your box.

[CptCaribbean]

There is no way to return to v1.18 if you don't have it on steam.

There are indeed options to downgrade the ETS2 versions in retail mode.

And if not download the upgrader in the ETS2 official page and choose to downgrade it to 1.18.

[Baloooou]

Thanks guys activated the game on steam and it works