I'm making a card-playing game, similar to Magic Workstation. I've been looking into several options for networking. I have a working LAN version with the build in Unity networking, as well as Photon Cloud. Though I was now looking for a more decentralized way of doing multiplayer on the internet. It would be very very cool if there were no servers involved in finding other people. I would still let players host their own game-rooms others can join.
I Googled around for this, and everything I found was at least several years old. So I was wondering if anything new has popped up since then. I've seen several decentralized chat programs and even voice/video chat without any servers. But nothing for video games yet.
I did find some problems with this kind of networking. Mainly the lack of anti-cheat, but in my case the players check the moves themselves so this shouldn't be a problem. Other than that it's probably a bit slower, but card games are generally not very high-paced :P
Thanks a lot!