Some games already use P2P, or provide servers for the community to run, so only the private servers would need replicating. Even in that case, I’d argue that having “some” common API, would make it easier than chasing around everyone’s different implementations.
Steam supports different multiplayer server modes: Steamworks Multiplayer
Some games already use P2P, or provide servers for the community to run, so only the private servers would need replicating. Even in that case, I’d argue that having “some” common API, would make it easier than chasing around everyone’s different implementations.