February 28, 2017 – Paradox has just revealed a brand-new expansion for Cities: Skylines! It’s called “Mass Transit,” and it adds several new commute options for mayor-players to add to their towns — including ferries, cable car lifts, and even blimps. There are new transit-focused policies, buildings, and more as well, all designed to help players design new options into their traffic systems.
More details on the expansion are here: https://www.paradoxplaza.com/news/Cities-Mass-Transit-Announcement/