Jump Into Multiplayer Games On YouTube with Crowd Play
How Crowd Play Works
When someone - whether they’re a popular YouTube creator, a game developer or your friend from across the street - streams a multiplayer game from Stadia, they have the option of turning on Crowd Play if the game’s developer has implemented the feature. The game can either fire up a custom Crowd Play mode or use Crowd Play for an existing multiplayer mode. During the live stream, viewers will see a button on YouTube that allows them to queue up to wait their turn to play. If they aren’t a Stadia user or don’t own the game, they will be asked to become a Stadia player and purchase the game before queueing.
All developers need to do to implement Crowd Play is support the Stadia multiplayer invite system and integrate one additional Crowd Play API so that the YouTube audience is alerted as the state of the lobby changes from closed to open and vice versa. Viewers on YouTube can then click the button that appears on the stream page and jump in to play with the person they’re watching. That’s the magic.
At the end of the game session, the creator can replace the current players with a new group of viewers from the Crowd Play queue. After the new players join, the creator can start the game.
The YouTube creator has control over who they play with, so at any point, they can choose to remove someone from the game, mute them from text and voice chat, or block them completely, which prevents them from joining the queue in the future. Stadia will let the game know about any kick requests, which the game should handle by removing the kicked player in a timely manner from the multiplayer game. Of course, only the host of the Crowd Play session should have the ability to start games and kick players.
Some possibilities for Crowd Play
Because of the one-to-many nature of Crowd Play, where a streamer could have many viewers who are interested in playing with them, Crowd Play works best with games that:
- Are quick to join
- Encourage multiple short matches
- Can pull in many players at once
- Are not in a highly competitive mode
- Are fun to watch
--Catherine Hsiao, Product Manager