OpenTTD - An open-source clone of the classic game ...
Open Rails - Open Rails is an open source simulator that is designed to run Microsoft Train Simulator content.
The Paradise Cove - The Paradise Cove is playable, Action-Adventure, Casual, Building, Management, Massively Multiplayer Online, and RTS Simulation created and published by Pocket Games.
Trainz Simulator - Trainz Simulator is a commercial train simulator from Australia.
RollerCoaster Tycoon Classic - Create and run amazing parks on your iPhone or Android.
BVE trainsim - BVE trainsim is a train simulator based on the point of view of the train operator.