If you're looking for a game to make realistic coasters and parks without mods, RCT3 probably isn't what you're looking for. The game is 20 years old and the vanilla version is a little on the cartoony side as far as design goes. Granted it was pretty amazing for it's time. It's still entertaining, and a pretty addicting sim game at that. You can make interesting parks without mods but they're not going to be photo realistic. These are some screenshots of an unfinished park I was working on. I did edit the options text file to allow track intersecting though. I'm not sure if that's even possible on ipad or switch. Not to say some of what I created isn't possible on those platforms, because some scenery does allow to intersect some scenery pieces but not all. That being said I've never played it on anything but PC. The game trailers will give you a better sense of what it will probably look like on ipad or switch.