Player interaction in multiplayer.

And so I created a simple networking board game with the Unity MasterServer. Apart from polishing it here and there I am left with a couple of questions, mainly about player interaction. Currently Player 1 plays against Player 2, that sounds a bit boring.

I could give both players an option to type in a name and sent that trough RPC but i'm looking for some more flavors. Like adding experience, win ratio, etc into the mix. I could store this fairly save on the players device, look into databases or maybe even on the server that I need to setup anyway.

But are there more options? How much can google play, facebook, IOS, etc integration help me out here? I dabbled some with Google play services on the LibGDX framework. Players there don't have just a name but a life so it feels much better to pick that name. I'm wondering what more is possible? Could I add achievements for 10, 25, 50, 100, etc wins and show that when the game start to the other player? What about fair match making? Do I need to reinvent the wheel?

So basically, what are my options to spice things up from a player interaction point of view. I would love to see some handy links together with some answers.