I'm a big roller coaster fan and I've bought 3 RollerCoaster Tycoon. I found it great and did it already 1 whole year and it is still my favorite game. You can build attractions and roller coasters and the roller coasters, you can build each track itself. There are in some roller coasters loops, barrel rolls and everything else. So I would recommend RollerCoaster Tycoon 3 for PC.