Just bought Parkitect and my wife and I played for several hours last night. It is exactly like Roller Coaster Tycoon as a kid, but with some fun improvements. I don't think it's as deep as Planet Coaster(I've never played it, just watched a few videos), but for me that's a positive. I love just building the parks, watching the finances, maintaining satisfaction from the customers etc.
One thing I really love about it is that they have pre-made coasters you can choose from just like the old RTC. You have the option to build your own, but I don't have the patience for that so I don't usually bother, I just select a pre-made ride.
We've only played the campaign mode right now, but it's a lot of fun. You go along a set path of parks and have goals that you must accomplish at each park in order to unlock the next one. That, in turn, unlocks each park for Sandbox mode, which I haven't touched yet.
There are fun little elements throughout that make the game more engaging and more fun IMO. For instance, you'll occasionally get a notification that a theme park has closed nearby, and that will draw more customers to your park. Occasionally you'll have a bus full of people dropped off in the parking lot that all enjoy a certain type of ride. If you don't have that type of ride, your park satisfaction will go down a bit. If you do have that ride, you'll get a serious bump. You can have a research team to research new rides, shops, and attractions. They can also do customer research to find out which elements of your park are most appealing. You can start an advertisement campaign that costs some money depending on the type of ad(flyers, billboards, social media, television, radio etc.), but it brings a lot of people to the park.Another little nuance of the title is that you can take out different size loans with different interest rates and pay periods,which allows you to build a huge coaster and then pay it back over time.
The only negative I can come up with is the penalty for guests seeing the infrastructure of your park. For instance, you get a bit of a negative rating if guests can see the bathrooms from other parts of the park. You have to conceal them with trees, rocks, or fences, which I find pretty dumb, but I guess it does give a reason to beautify your park outside of just making it aesthetically pleasing for yourself. You also have to stock all of your shops and food vendors with employees called haulers. If guests can see the haulers bringing the supplies to the various businesses you'll get a negative rating. This one makes a bit more sense because if I was walking through Six Flags I wouldn't really want to see a stack of hot dog buns being wheeled around on a cart throughout the park. You have to conceal the haulers with fences or trees, or you can even build underground tunnels from your supply station to the other parts of the park. That's a bit much to me, but it's pretty much the only negative I can come up with.
There's a lot more to go over, but basically it's casual, silly fun. Only $30 too. I would highly recommend it if you liked RTC as a kid.