Co-op action games for families on Switch let everyone join in the fun. 'Super Mario 3D World + Bowser’s Fury' lets 4 players control Mario, Luigi, Peach, and Toad, navigating colorful levels and fighting bosses together. 'Pikmin 4' has the whole family command tiny Pikmin to carry objects, battle enemies, and solve puzzles, with a cute, accessible design. 'Overcooked! 2' is a chaotic cooking game where players work together to prepare meals in crazy kitchens (e.g., moving trucks, floating rafts), fostering teamwork. 'Luigi’s Mansion 3' lets 2 players explore a haunted hotel—Luigi uses his Poltergust, while a friend plays as Gooigi, a gooey duplicate, to solve puzzles. 'Mario Party Superstars' combines classic mini-games with co-op boards, perfect for family game nights.