People watched Twitch streams of an 11-year-old game more than any other for 2024
It's still going strong.

For game developers, Twitch streams can be an amazing source of marketing. It's essentially word-of-mouth on a much grander scale; all it takes is one big-name streamer to pick up a game, and it can chain-react into a ton of sales. Just look at Among Us, Lethal Company, and Balatro, all of which rode the wave of Twitch streamers to become popular hits.