There should not be a reason why TSW6 shouldn’t be multiplayer this is the sixth game. I’ve played other train simulator games they all have multiplayer for instance RSU, which is a game on Roblox yes, Roblox does their simulator way better than DOVETAIL which shouldn’t be the case WHY IS A GAME THAT RUNS ON ROBLOX DOING BETTER THAN A COMPANY WHO SOUL PURPOSE IS TO MAKE A RAIL SIMULATION GAMES!!! not only that they got sound that actually sounds realistic, and they also have horns which you can control Foley not just a push it. A button and a sound turns on an actual horn that functions like an actual horn dovetail should be pass this level of realism, but we’re now on the six game and it’s basically the same game over and over again with some minor tweaks. Dovetail needs to do better for the sake of the company and as much as it pains me to say this shame on dovetail for allowing a Roblox game to put them all the shame, Keep in mind they’re able to have multiple servers up and running with 30 people in each servers just think about that thank you.
Honestly I still don't get why so many people are crazy for multiplayer in a sim like TSW. What does it add to the experience? The knowledge, that the train you just passed is being driven by another human being? Is that it? The only thing that comes to my mind to justify multiplayer would be creating small co-op teams to tend to one specific train (i.e. one is the driver, another one the conductor, the third one is dispatch). But even that's a lot of work for arguably small benefit... TSW is just not built to accomodate such things at this point. I stick to my opinion: Let's fix some bugs of the existing game first, before adding big new features...