Monster Strike is a mobile Japanese role-playing physics game with elements of puzzle, strategy and cooperative multiplayer. It is developed by Mixi for iOS and Android platforms. The game was co-created by Yoshiki Okamoto. In Japan, its name is often shortened to MonSt.

The game can be summed up as a cross between Nintendo's Pokémon and Capcom's Metal Walker; the former in that it centers around monster collecting and the latter in that battles take place using catapult mechanics.

Monster Strike has been compared to competitor Puzzle & Dragons and other freemium puzzle games in that the player battles waves of monsters to collect them, fuse them, and evolve them and earn gold and other items through gameplay to get stronger monsters and build a list of friends with monsters to use as well. What sets it apart is that rather than being a tile-matching video game, the player aims and flicks their monsters around on a field, similar to billiards/pool, bumping off of walls and enemies to perform damage.

Monster Strike was originally released in Japan in September 2013, and by November 2013 it was credited with saving Mixi, originally a social media network, after the app became popular in the iOS App Store. In September 2014, it was announced that a North American version and a South Korean version would be released. South Korean support ended on November 30, 2016, while North American support ended on August 1, 2017.

By October 2018, the game grossed over $7.2 billion worldwide, surpassing Puzzle & Dragons to become the highest-grossing mobile app of all time. The game has grossed a total revenue at least $8.13 billion as of 2019.

According to en.wikipedia