Scooby-Doo! and the Spooky Swamp is an open-world action-adventure game for fans of the long-running franchise, starring the whole Mystery Inc. gang. "Those meddling kids" will need to work together to make it through the game's most difficult challenges. Gamers can play as Scooby, Shaggy, Velma, Daphne, or Fred, swapping on-the-fly to make use of each character's special abilities when they're most needed, and a second player can join the action at almost any time, to help overcome obstacles through teamwork. The game plays out in three themed worlds that players are free to explore as they wish, but they'll need to solve platform puzzles and conquer powerful boss characters in order to progress through the spooky storyline. The gang explores the mystery behind a strange girl who lives in a spooky swamp. They'll also find adventure in a snowy Alpine village and a Southwestern ghost town. Along the way, special gadgets can be obtained, to help uncover clues and solve tricky puzzles. As they overcome challenges, players earn new clothing and accessories that can be used to customize the look of the Mystery Inc. characters.