One of the more innovative concepts in streaming history just celebrated the tenth anniversary of its initial launch. The team behind the Twitch Plays Pokémon account has booted up Pokémon Red once again for another collaborative (and chaotic) trip through the Kanto region.

Once upon a time, one million players made Twitch Plays Pokémon the hottest thing on the internet.

The year was 2014. An anonymous developer hauled in more than 15 million total views by employing Twitch chat in a then-unique social experiment.

If you’ve never seen a Twitch Plays stream before, the premise is simple yet frustratingly out of control. Stream viewers enter controller commands in the chat window, and those orders are used to control an in-game character. With only a few players, that system is not so complex, but when you have 80,000 players, as Twitch Plays Pokémon did at its peak, things get out of hand real fast.