Android Question Adding multiplayer feature?

[Spright]

What is an efficient and simple way to add a multiplyer feature to your game?

Firebase? Google Play games services? Cloud services, setting up your own server or servers? What other ways would you suggest?

The goal is to connect Android game user-to-user and it's just meant for friends. You dont need to connect with unknown users/guests. But how that would best be implemented in B4a would also interesting to know.

The current one is a boardgame so real-time is not a must, but it would be valuable to to learn something that can scale to realtime-time. TIA!

 

[Andrew (Digitwell)]

I have used Push Notifications. All the phones subscribe to the same topic. This worked surprisingly well. Near real-time with hundreds of people using it concurrently and no noticeable drop out.

I think that MQTT would be a better option but I haven't used that in a production system..