The Sky games and the first two CS games hold the most charm to me, as they are set in some sort of Renaissance era/early WW1 feel, with cool mechs and airships layered on top. Picturesque French/German villages, travelling across not-Prussia in a cozy train, running down a dirt road in Liberl to warn a village of danger because there are only five telephones in the whole country, etc. The later games eroded that charm. I really dislike Crossbell, the later CS games, and by the looks of it, Calvard, with their generic skyscrapers, flatscreen TVs, people immediately warning each other because everyone has smartphones now, people wearing tuxedos, etc. That's not a fantasy world. That's just mundane real life.