I guess your geometry needs to be excellent enough to play this game. I'd say that I do not quite remember the names of each city. Therefore, it's a pain to proceed with the dialogue and ask about the correct route to where I want to go. (But I made it back within 80 days anyway.)

The second half of the dialogue and story is exceptionally well written, and I love the little fantasy about transportation. At the same time, all the economic systems are still stuck in reality and have not gone far.