
Note: Downgrading your game isn't always possible. After you know the supported version, try to search for that version in your Steam Settings. You can find that version in the error message when you try to launch ATSMP / ETS2MP. > If SCS updated the game you need to find the latest supported version by TruckersMP.
If TruckersMP is fully updated and supports the new version, you need to select "None". => Here you need to find the correct version.
Right-click on American Truck Simulator / Euro Truck Simulator 2. You can also watch this video on how to downgrade your game. To upgrade/downgrade ATS or ETS2 you need to open Steam. Once we support the newest version, it will be posted on our socials and our Discord. Updating TruckersMP to the new version may take some time, we also do not have an average waiting time for the new updates. Whenever American Truck Simulator or Euro Truck Simulator 2 is updated by SCS Software you will need to downgrade your game until TruckersMP pushes an update to support the new version. The devs also recommend backing up your saves before trying the beta, just in case.If you get the error shown below, this article will help you downgrade or upgrade your game to the correct version of American Truck Simulator or Euro Truck Simulator 2. You’re likely to run into a number of bugs, there’s currently no mod support, and some things – like minor weather patterns – aren’t yet fully synched. Instructions for joining the American Truck Simulator Convoy beta are available on the official forums, but the devs offer the caveat that this is very much an experimental beta. The big benefit it has over TruckersMP right now is synchronised AI traffic, time, and weather, so you won’t be driving empty roads when you’re in a session with friends. Convoy is a much smaller take on multiplayer, with private sessions built for eight players.
The new Convoy mode, as the official multiplayer option is called, has both benefits and limitations compared to TruckersMP, the community option.
Developer SCS Software is now working on that very thing, and you can already play with the multiplayer features in an experimental beta for ATS. Players of both Euro Truck Simulator 2 and American Truck Simulator have had access to multiplayer through community mods for ages, but official multiplayer support has still been a long-requested feature.