Luigi's Mansion: Dark Moon, known as Luigi's Mansion 2 outside North America and South Korea or as Luigi Mansion 2 in Japan (ルイージマンション２ Ruīji Manshon 2), is a Nintendo 3DS game, and the sequel to Luigi's Mansion, a Nintendo GameCube launch title. This is the third game to feature Luigi as the main character with Mario playing a supporting role (the first two being Mario is Missing! and Luigi's Mansion). An arcade version of the game was released in 2015.
Luigi's Mansion: Dark Moon is the first game that was released as part of the "Year of Luigi," honoring 30 years since Luigi's debut.