Arguably the best game in the series...made all the better by a georgous new 3D graphics engine.
This game makes it fun to recreate parks that you have been visited, once again because of the wide range of cutomization options.
You can either place a previously built roller coaster, or you can go the more fun route and build it from scratch. You also have the ability to build you own generic rides, like haunted house, go karts, ect.
There are five different themes in the game; sci-fi (rocket ships,space), adventure (jungles, pirates), horror (haunted houses, ghosts), generic (your regular carnival-type rides), and western (coboys, mining villages).
I would reccomend this game to anyone.