The multiplayer mode is different this time around. You don't visit each other's farms, but you get sent to an island where you can fish without losing stamina, and there's a giant rock in the center where you can offer 3 items and get 3 new items for it such as jams, jewels, cloths, etc. (offering an item you got from an offering that you don't want counts as 2 BTW. It's 3 per visit.).