Presentation: Twitch Plays Pokémon: Twitch's Chat Architecture


11:50am - 12:40pm




Twitch connects over 100 million gamers each month. Our architecture lets them watch each other play, socialize about gameplay, dank memes, and life.

Twitch's chat system powers the world's largest chat rooms and sendsout hundreds of billions of messages per day. In February 2014, millions of people played a game of Pokémon Red via Twitch Chat during an event that propelled Twitch into the mainstream.

This event caused such stress on Twitch's chat system that it was on the verge of completely falling over. Twitch Plays Pokémon: Twitch's Chat Architecture walks the audience through Twitch's chat architecture by telling the story about how Twitch's engineers investigated and worked through the issues in what turned out to be a make-or-break situation for the company.

Speaker: John Rizzo

Senior Software Engineer @Twitch

Find John Rizzo at

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