"A Train i" is a city development/railroad simulation game. In the game, you are the corporate manager of a railroad company and its affiliated companies with the ability to develop the town by building rental buildings, department stores, and condominiums. The goal of the game is to fully utilize capital and material to build the railroad network and city functions in order to develop the city into a metropolis. Development of a city requires numerous elements, including establishing a stable population, providing jobs for residents, and securing a steady supply of materials. These elements mix and interact to gradually form your city. The city never develops in the same way even when using the same map repeatedly.

The cityscape changes depending on the location of the station and the type of the trains entering the city. On the other hand, the city changes even when players are not actively playing the game. Observe the changes in the city simply by opening your mobile phone. Even beginners and casual players can enjoy the game. It is, of course, possible to arrange the city as you wish to make it into your ideal. Experience the enjoyment of making your city unique to the world. The extent of development and the kind of city produced is totally up to you! Now, which trains do you run and what city do you build?