You can also check out the games using on the web. Turning the feature on in the Experiments page makes the Playables show up in the Explore tab of the YouTube app.
This week, YouTube started sending out notifications to Premium subscribers who can play the new games (via Droid Life). We spotted YouTube testing the concept internally as early as June and noticed that testing had expanded to Premium subscribers through the YouTube Experiments section since the first week of September. Although it is nowhere near the scale at which Stadia used to operate, Playables for YouTube will instantly remind you of flash games from a few decades ago, which usually featured simple 2D graphics and simple physics. Playables are the only evidence of Google’s interest in cloud gaming since Stadia was killed off earlier this year.