I am looking for a way to launch Facebook Instant Games in the native mobile app from an external site. I have managed to launch the game in the desktop site simply by extracting from the built-in play button href's (e.g. https://www.facebook.com/instantgames/play/id_here). However I am having difficulty finding a way to launch the Messenger games from anywhere external.
Not sure if this is possible and far from my best Stack Overflow question, but the docs are helpless, so any help would be greatly appreciated, and also not to be crucified for the question as I don't have much more information to provide unfortunately.
As long as you have a page associated with your Instant Game you can use an m.me deeplink (e.g. m.me/everwinggame?game=everwing).
The format of these links is m.me/{page id}?game={game namespace}.
There's more information here, but appreciate the feedback on our documentation. Thanks!