i purchased this game four years ago.
the fact that it is still incomplete and the developers have seemingly abandoned ship is incredibly disappointing. if they are no longer working on this game, they should at least do the right thing and let us know.
i deeply regret supporting these devs since it seems they cannot even be bothered to communicate with us about potential delays or other issues that come up and impact the release of the rest of the routes.
under no circumstances do i recommend you purchase this game as is. it is likely not going to be finished any time soon (if at all) and your money is better spent elsewhere supporting other indie devs who actually take the time to interact with and keep their supporters/customers updated.