In 2012, in response to toxicity and harassment in " League of Legends " , Riot Games launched a " player behavior team " of psychologists to combat harassment on its platform.[13][14] Riot Games' tactics to address issues on " League of Legends " , including an opt-in chat function between opposing players, informing banned players of the reasoning behind the ban, and creating a tribunal of players to weigh in on bans, resulted in a 30 percent drop in reported harassment behavior.[13] The efficacy of their results has been questioned by players and the gaming press.[15] By 2013, " League of Legends " was the most-played multiplayer PC game in the world.[16][17] From 2014 to 2016, the number of active " League of Legends " players grew from 67 million to more than 100 million.[6][18]