For those expecting an expansion on RT2, this game is not.
This game provides a 3-D experience with limits on cargo pickup, expansion and placement of stations. It also requires extensive upgrade of video and ram if on computer. It lacks the full train control of MSTS and ability to load scenarios that made RT2 a fantastic strategy game as well as simulation game.
It would have been better upgrade of the game had RT2 features been extended to add tunnels, varying bridge styles, adding locomotive power for steep grades, signaling and ability for quad-tracks. A greater choice of locomotive power for freight haul versus passenger haul also would have added to the power of the game.