If you know and like Transport Tycoon, Locomotion or even openTDD or simutrans then DO NOT BUY this game. Train Fever is lovely & does offer decent 3D graphics and freeform road/rails/terrain but everything else is just the same or way cut down... in a nutshell: transport tycoon for the dumb.
Disagree with all the five star ratings here... - graphics are nice, although static - lots of text without voiceover, so no atmosphere basically it's an endless stream of - running around the map (like in kings bounty/homm), constantly interrupted by setting up the camp for the night chore - fights that have even less strategic depth & variability than those in kings bounty other mechanics may spruce things up later but it's just too late