I love Animal Crossing New Leaf. It is easily my favourite game on my 3DS and the one that I have put the most hours into. I personally love it because I mean... you can't really lose, haha. I'm pretty bad at games, and I personally don't enjoy playing incredibly challenging ones as I play games simply to relax not to prove to myself I'm good at games, if that makes sense. Animal Crossing New Leaf is extremely casual.
I love how open it is. I mean, yes, there are
some restrictions because the developers can't help that, but there is still quite a bit you have control over.
You can (sort of) pick how your town looks. I mean you have to choose from already created maps, you can't design your layout from the ground up. BUT! I am glad that the game didn't just give *one* map layout and make everyone use it. I like that people can have towns with lots of ponds, or one pond. A curvy river that splits the town more diagonally/vertically in half or more horizontally in half. I like how you can plant trees, bushes, pick where your house goes, pick what your house looks like, customize the inside of your house with furniture to your liking, pick where Public Work Projects go (unless of course, Isabelle doesn't like your placement
) you can put paths in your town or you can not have paths, it's up to you. You can design your own paths or find ones online. You can design clothes for your character, get designs online, or just buy clothing from the shops. If you put in the effort you can fiddle with where villagers put their house (it's a bit of a hassle but it can be useful).
I also like how everything can be done at your own pace. If you want to live in a one bedroom house for four months, Tom Nook has no problem with that. He won't track you down for a house payment.
If you want to leave the museum empty and fossil-less, bug-less, fish-less and without art, you can do that. Blathers won't pester you about it. You don't *have* to do anything. You can do everything at your own pace, it's relaxing. You can just wander around town talking to villagers and doing them favours all day (okay, not all day, as this game kind of runs out of things for you to do haha I mean I have played it for hours on end but that's generally when I'm first starting out and just working on how the town looks), or you could spend the day fishing and catching bugs, there isn't a wrong way to play the game.
Keep in mind, however, that this is a game that benefits from you checking it daily. Villagers can (and will) move in/move out without notice. Weeds will pop up and flowers will wilt (I have a beautiful town ordinance set so flowers dying isn't that big of an issue and I don't get many weeds), you will also miss some events. The games celebrates holidays like Halloween, Christmas, New Years, etc and then they also hold little in game things like fishing contests, bug contests, and so on.
I really love the game. I've had it for... two or so years now? And I still play it a ton. It's well worth the money in my opinion. However folks like
@Spinnerweb disagree.