Train Sim 15 is an online mobile game, train simulator game, detailed maps, amazing trains, you will be able to drive steam, diesel or electric locomotives, complete all the routes on time, by driving freight or people trains, is free to play on Android and iOS devices.
Download the game at:
https://play.google.com/store/apps/details?id=com.ovilex.trainsimulator2015
https://itunes.apple.com/app/id981845808