These maps can be added to BCS: https://busbetrieb-simulator.de/maps.php?lang=en
If the map isn't in the list, you have to first request it in BCS forums.
Hello
I have question. It is possible to add a DLC map METROPOLE RUHR? Nice map, little bigger than Gladbeck. But is working better and stable
saper https://gogroupvirtual.eu/forum/d/22-map-request-ruhrgebiet/8
