The world of OMSI 2 (The Bus Simulator) is vast, but few maps capture the imagination of virtual bus drivers like the add-on. The iconic landmark of the city of Wuppertal, Germany, this upside-down train is a marvel of engineering.
Cons
: Once downloaded and activated via Steam, the add-on can generally be played offline, provided you have the base game installed. Installation OMSI 2 Add-On Wuppertal free offline