Monster Strike (モンスターストライク: Monsutā Sutoraiku) is a mobile game with elements of RPGs, strategy games and cooperative multiplayer. It is developed by Mixi for the iOS and Android platforms. The game was co-created by Yoshiki Okamoto. In Japan, its name is often shortened to . As of June 30, 2015, the game has daily revenues of $4.2 million. A more traditional RPG of "Monster Strike" was released for the Nintendo 3DS in December 2015.