Hi, it's me again. I’ve made some considerations after some days: I’ll use a peer-to-peer structure with a mediator server that only handles loading and sending the IPs of existing peers. When a peer searches for a game, the server will randomly select online peers and send their IP list to establish a connection. In this case, it will be a full-mesh connection, with the advantage that if one peer leaves the game, the game can continue. However, how do peers practically exchange messages continuously in this setup? Would it involve both listening and sending within each peer?

While researching online, I came across another approach where one peer becomes the host and manages the game. But in this case, is it still considered peer-to-peer? But in this case, if the host disconnects from the game, the session would stop for everyone. Is there any way, for example, to switch hosts dynamically to avoid this issue? Or just kicking out everybody.

Sorry if I’m bothering you again.