The International (TI) is an annual electronic sports Dota 2 championship tournament hosted by Valve Corporation, the game's developer. Sixteen teams are given invitations to compete in the tournament. The first tournament took place in Cologne, Germany at Gamescom from August 17–21, 2011 and was held shortly after the reveal of Dota 2, with a total prize pot of $1.6 million and a grand prize of one million dollars. The second International took place from August 31–September 2, 2012 at Benaroya Hall in Seattle, Washington and retained the same $1.6 million prize structure. For the third International, again at Benaroya Hall, Valve introduced an interactive, digital "compendium" which fans could purchase to follow the event and contribute to the prize pool; TI3 spanned August 7–11, 2013 and reached a $2.8 million prize pool with $1.2 million added from compendium purchases. The fourth International, this time held at the larger Seattle venue KeyArena from July 18–21, 2014 and continued the practice of compendium sales and ultimately broke records for having the largest prize pool in eSports history, with a total of $10.9 million.