"Clash Royale" is a card-based game. Players can combine their own decks (each deck has 8 cards) for online battles. 1V1 battles can win gold coins, trophies and treasure chests. The trophy will be deducted. There are random types of cards in each treasure chest.

The game mode is mainly to find opponents randomly in 1v1 to increase the number of cups to upgrade to a higher arena (or higher league level). In addition, 2v2 game mode is also available, and special modes (party ) And challenges.

In the game, the holy water mechanism is used, and the maximum amount of holy water is 10. Players can use holy water during the game to summon and use their own cards to attack their opponents. Cards are divided into three types: army, architecture, and spell. When some cards or arms attack enemy units, it will cause stop, poisoning, etc., making the gameplay more variable.