Clash Royale is a real-time strategy video game developed and published by Supercell. The game combines elements from collectible card games, tower defense, and multiplayer online battle arena. The game was released globally on March 2, 2016. Clash Royale reached $1 billion in revenue in less than a year on the market. In three years, Clash Royale made $2.5 billion in revenue according to market intelligence company Sensor Tower. It is the first spinoff of Clash of Clans.

Supercell Ltd is a Finnish mobile game development company based in Helsinki. Founded on 14 May 2010, the company's debut game was the browser game Gunshine.net, and after its release in 2011, Supercell started developing games for mobile devices. Since then, the company has fully released five mobile games: Hay Day, Clash of Clans, Boom Beach, Clash Royale, Brawl Stars and Squad Busters, which are freemium fast-paced games and have been very successful for the company, the first two generating revenue of €2 million per day in 2013.