Ten Little Animals is a whodunnit-style murder mystery game built (mostly) inside Animal Crossing. All you'll need to play is a smartphone/
computer and a copy of the game.
The game is entirely free to play, and is accessible at any time! You won't need to bring anything to the island except for your sleuthing skills.
You can access the game with the following Dream code:
Once you've arrived, simply check out the bulletin board at Town Hall.
Good luck, detective!