I've done this before myself for a pretty simple game and had to build the system alongside it. It's quite fiddly to get right. I've been working on a new game

I've done this before myself for a pretty simple game and had to build the system alongside it. It's quite fiddly to get right. I've been working on a new game on and off which is a bit less working with websockets directly and I looked at ably[0] to be that firebase like system, I've found it works reasonably well if you squint, though it's definitely not the same thing. You can hack together a pretty nice implementation which gets you started using for example using presence[1] to store a minimal dataset associated with synced state. Then derive gamestate off that. Which you can then expand on. Though maybe you were wanting a more complete solution =)... - [0]: https://www.ably.io https://www.ably.io - [1]: https://www.ably.io/documentation/realtime/presence https://www.ably.io/documentation/realtime/presence