A free program for Android, by GiantClip Games.

Train Simulator Uphill 2020 is an exciting game where you will drive a train and carry passengers on your way. There are many levels to explore, and the best part of this game is that you can play it offline, no wifi or internet is required to play the game.

How to play Train Simulator Uphill 2020:

When you first start this game you will be given a mission to pick up passengers from different stations. You will also need to pick up some cargo and deliver it to the next station. 

It also includes amazing mini games that will keep you playing for hours.