Riot Games is an American video games company and eSports organizer. They use their Twitch channel to live stream eSports championships, with a particular emphasis on the North American and European League of Legends Championship Series.
Riot Games was founded by Brandon “Ryze” Beck and Marc “Tryndamere” Merrill in 2006 – initially as an indie game developer. They released League of Legends in October 2009, using the freemium charging model. They operate League of Legends servers across the world, often with localized versions of the game.
They livestream League or Legend tournaments on Twitch and repeat them on days when there are no new tournaments.
— Twitch Prime (@TwitchPrime) October 26, 2018