The video game developer who hosts The Mid-Season Invitational was established in what year?
Riot Games Riot Games is an American video game developer, publisher, and eSports tournament organizer established in 2006. Their main office is based in West Los Angeles, California. They currently have additional offices located in Berlin, Dublin, Hong Kong, Istanbul, Mexico City, Moscow, New York City, St. Louis, Santiago, São Paulo, Seoul, Shanghai, Singapore, Sydney, Taipei, and Tokyo.
Respawn Entertainment Respawn Entertainment, LLC is an American video game development studio founded by Jason West and Vince Zampella, who created and were responsible for the development of the "Call of Duty" franchise at Infinity Ward before 2010.