The initial release of Train Fever is single player only. There are plans to develop an expansion pack or sequel which turns the game from single to multi player. However, this will only be realized if the sales of the initial release are satisfactory.
The main reason for this decision is our limited budget. It’s simply not possible to develop the multi-player parts with our limited resources.
I agree that competition could make the game more interesting. Also, the skill system and characters are well-suited for a competition mode. So let’s hope that the initial release will be a success so that we can realize the multi-player parts then 😉