Pull on your anorak and lets hit the tracks
Trainz: A New Era offers nearly everything a rail fan could want: from the ability to build your own railway to controlling the trains. With convincing real world physics, weather effects, and the ability to drive modern and historical trains from all over the world, this is the closest most enthusiast get to their dream of driving a 662,000 lb locomotive.
The only issue? If you want all the DLC it might be cheaper to buy your own railroad.