I notice you're asking about – likely referring to Trainz: A New Era (often abbreviated T:ANE, but sometimes confused with "TEW").
: New players often delete dozens of save files just to figure out how to properly use the booking tools. However, putting on a "90+ grade PPV" after mastering the mechanics is considered highly rewarding. Dynamic Living World
The biggest hurdle is the activation server. Many users report that the activation server for TEW 2013 occasionally goes offline. If you get a "Could not connect to server" error: