"Megido 72" is a smartphone game app developed by Media Vision and operated by DeNA. The service began on December 7, 2017. It is a free-to-play game with in-app purchases. This RPG, an original IP by DeNA for smart devices, is set in three worlds: "Harmalia," inhabited by angels (Haruma); "Vaigard," inhabited by humans (Vita); and "Megidral," inhabited by demons (Megido). The story follows young heroes striving to prevent the world's end, "Harmageddon."