My wife has put so many hours on this game. She pretty much took over my switch and I had to get a new one. She is not the gamer type, so, I was pleased to see her get into a game. I've been following her progress as she racks-up Nook miles and upgrades her home. The level of detail that Nintendo put on the villagers' interactions and personalities is amazing.
Gameplay: You start on a deserted island. You get a tent for sleeping and off you go to start completing tasks to build up the island and make it the best attraction for future residents. These tasks are catching bugs, fishing, collecting fossils and seashells around the beach, picking up weeds, breaking rocks, chopping trees, collecting materials, and crafting tools and furniture with those materials.
As you complete these tasks you get Nook miles (a type of currency) and coins (a type of currency). There are certain items that you can get with Nook miles only. You use your money and miles to buy upgrades for your living quarters, travel to other islands to gather resources, and meet other residents, get accessories for your character and so for.
With time, you'll be able to invite villagers to become permanent residents of your island. You'll be able to reshape your island to be whatever you want it to be.
Conclusion: This game is addictive and consumes a lot of time. Fun to play for the casual gamer. Very relaxing!