This is great but the trick is keeping them running and not catching on fire. Six Flags has come on board the game with a series of park inspired updates.

Six Flags Entertainment and Atari today announced a licensing partnership that will feature real-world Six Flags content in the smash hit RollerCoaster Tycoon® Touch™ mobile game.
Prepare for some egg-citing new updates to RollerCoaster Tycoon® Touch™, because Easter is nearly here, and Atari® is celebrating the holiday in their popular theme park management game for iOS and Android devices.
Atari’s incredibly popular free-to-play mobile game "RollerCoaster Tycoon Touch" is celebrating its two-year anniversary today by rolloing out new game features and much more.