Riot Games is an American video game developer, publisher, and esports organizer best known for its flagship title, League of Legends, a massively popular multiplayer online battle arena (MOBA) game. Founded in 2006, Riot has expanded its portfolio to include other successful games like Valorant (a tactical shooter), Teamfight Tactics (an auto battler), Legends of Runeterra (a digital card game), and Wild Rift (a mobile MOBA). Beyond game development, Riot is a major player in the esports scene, hosting and organizing international tournaments and leagues for its games, contributing significantly to the growth and professionalization of competitive gaming.