YouTube Gaming is live.

According to TechCrunch, this means “Twitch’s Archenemy” is now up and running: “YouTube has definitely put a lot of resources into this launch with a service already available on the three main platforms. We will see whether old habits die hard, but YouTube Gaming looks like a heavyweight and Twitch’s most serious competitor to date.”

The post offers this analysis: “In the end, it all comes down to content. If YouTube can convince Riot to stream its League of Legends competitions on YouTube Gaming instead of Twitch, it could make millions of people tune in YouTube Gaming overnight. Counter Strike: Global Offensive, Hearthstone and Dota 2 are going to be important games as well.”

“These competitions boost Twitch’s incredible long tail. When there isn’t any competition, hundreds of thousands of people are still watching streamers. For many people, game streaming means Twitch — if they want to watch something, they browse Twitch.”

Android Authority writes that “YouTube Gaming already contains over 25,000 dedicated game pages. It’s designed to not only support static videos, but also features the ability to stream video games live. The new application makes it easy to find channels you might be interested in, as well as popular titles that are being streamed right now.”

CNBC offers a business take: “Analysts say the addition of a second major streaming service will likely be more of a rising tide lifting all boats situation, rather than a blow against Twitch, which is already deeply established in the gaming culture. And Twitch, which has already beat back assaults from smaller companies like Hitbox.tv and Beam.pro, has long been aware that YouTube was interested in the space and has locked down many of its most popular broadcasters under contract.”