Tetsudo Nippon! Rosen Tabi EX Seiryu Unten Nagaragawa Tetsudo Hen is a Japanese video game developed and published by Sonic Powered. It is a part of the "Railway Japan! Route Travel EX" series, which focuses on train simulation games set in various regions of Japan. In this particular installment, the game centers around the Nagaragawa Railway, allowing players to experience the operation of trains on this specific railway line.