I am asking, because I think I haven't seen the multiplayer support in any railroad/transport-tycoon game. I remember in Railroad Tycoon 2 and then in Sid Meier's Railroads [0] we could play against NPC. Same as us, NPC is establishing a company and we may buy all his stocks to win.
[0]: https://store.steampowered.com/app/7600/Sid_Meiers_Railroads...