Awesome but one fatal bug
Love this game, my only qualm is that when you try to add one too many locomotives to a line, a large message covers part of the play area telling you you’re limited to 4 locomotives. The message will not disappear until a few seconds have passed within the games time - meaning if you have a station that is close to overcrowding and it is hidden under the message, there’s basically no way to monitor it without the game being unpaused while you wait for the message to disappear so that you can see what you’re doing. It’s also very hard to keep track (no pun intended) of the number of locomotives per line because when they are at a station they are hidden underneath it. So it’s very easy to accidentally add a fifth locomotive to a line and trigger the message. It would be much better if either the message was unobtrusive, or if there was a locomotive count next to the circle representing each line, like 1/4, and when you reached 4/4 it would (subtly) indicate that you can’t add anymore. Maybe if you tried to add a fifth it would simply not let you and the 4/4 would flash indicating you were trying to exceed the limit. But otherwise this is a very thoughtfully made relaxing game.