Open source simulation game based on Transport Tycoon Deluxe
An open source re-implementation of Chris Sawyer's Locomotion
Under the inspiration of Diablo II, OpenTTD, Discovery and 88 Flak
A NewGRF for OpenTTD to add virtual Korean-style trains
Vehicle simulation with freedom of movement on large map (5x5km).
Fom the developer that brought you FlappyBirdPC comes OpenTTDFree.