Thank you for the clarification. I intend to ship an iOS game, so I'm a little confused as to what HTTP server I will be using or have access to, or if it's needed at all.
The game I am making is a space shooter, but if I understand correctly, the plugin simply allows another user to join in the current game. I don't intend for this to be possible in the single-player campaign (no co-op mode). The only time the player will interact with other players will be in multiplayer mode, and that will be its own section.