Twitch is the biggest name in live-streaming. Launched in June 2011, Twitch quickly became the go-to home for video game streamers, growing to tens of millions of monthly viewers within just a few years. Amazon acquired the company in 2014, offering the commerce giant a powerful competitor to YouTube, with an audience the Google-owned video platform has struggled to reach. Twitch is best known for being home to Fortnite streamers like Ninja and Tfue; e-sports like Overwatch and League of Legends; and new phenomena, including Grand Theft Auto V role-playing. It’s also expanded beyond games to include activities like social eating and musical performances.