Twitch Interactive announced late last week that it now averages 100 million global viewers per month. The Amazon-owned site hosts live video broadcasts of gamers competing against each other and has been steadily growing in popularity (its current viewing numbers more than double last year’s figures). The announcement comes as Twitch faces an increasing number of competitors, including Dailymotion, GamingLive.tv, Valve and Google’s YouTube. Twitch generates its revenue through advertising and premium upgrades.

“More people are choosing to stream video of their gameplay, too,” reports The Wall Street Journal. “Twitch says it now has an average of 1.5 million broadcasters a month across the globe, up 67 percent from 900,000 a year ago.”

YouTube’s channel with the most subscriptions belongs to PewDiePie, Felix Kjellberg’s channel that centers on gaming videos. According to Tubefilter, the 25-year-old Swede now has more than 34 million subscribers.

Amazon acquired Twitch last year for nearly $1 billion. It began four years ago as an outlet for gamers to provide live streams and related commentary. It has since become the fourth highest source of Internet traffic in the U.S., behind Netflix, Google and Apple.

“Live tournaments are growing in popularity alongside the rise of e-sports,” explains WSJ. “In October 2013, 32 million people watched the championship of Riot Games’ ‘League of Legends’ on various streaming services like Twitch and Google’s YouTube. That’s more than the number of people who watched the TV series finales for ‘Breaking Bad,’ ‘24’ and ‘The Sopranos’ combined.”