Steam's Remote Play Together has just been enabled for Diesel Railcar Simulator! Remote Play Together allows you to invite your Steam friends to play with you over the internet, as if they were sitting next to you. In Diesel Railcar Simulator this could be used, for example, to teach someone how to drive the train or to take turns in driving the train from station to station. Your friends don't even have to own a copy of the game.
Many thanks to player Overland for suggesting this feature and testing it!
If you have ideas on how to make better use of this kind of co-operative multiplayer for DRS, please post in the discussion thread. Some of the ideas may be implemented in the gameplay update!