Lost Kingdoms II, known as Rune II: Koruten no Kagi no Himitsu (RUNE II(ルーン ツ) ～カルテンの鍵の秘密～, Rūn Tsu ～Koruten no Kagi no Himitsu～) in Japan, is a role-playing video game developed by FromSoftware and published by Activision in North America and Europe. It is the sequel to Lost Kingdoms. Lost Kingdoms II is a card-based action role-playing game where battles are fought in real-time.