Complexity Gaming is an American professional esports organization that competes in Counter-Strike: Global Offensive, Call of Duty, Dota 2, Hearthstone, Gwent: The Witcher Card Game, Rocket League, Clash Royale, Fortnite and Madden. From 2006 to 2009 they were a franchise of the Championship Gaming Series known as the Los Angeles Complexity. They have previously sponsored players and teams competing in League of Legends, Counter-Strike: Source, Dead or Alive 4, Forza Motorsport 2, FIFA 07, Smite, Heroes of the Storm, Gwent: The Witcher Card Game, Heroes of Newerth and StarCraft II. CompLexity was founded by Jason "1" Lake in 2003 as a Counter-Strike 1.6 clan.