If you haven't already,download WOOL - a Rust simulator for iOS
Everyone will connect to a single, persistent, multiplayer server. Wool is turn based, players will have up to a second to take their turn with everyone else. It's a bit of an experiment, so we'll see if it's any fun to play when it's up.
This week I learned how to code a Java based back end server. This will let me write game servers for any kind of multiplayer game. I really should have figured out how to do this years ago, it's not very much different from writing iOS and Android applications. I'm writing a server similar to Rust's servers -- a persistent world that everyone will connect to, and that's going to be a bit complicated for one guy. I'm mainly concerned with latency and performance of the server. I should have something functional in a week if all goes well.
The Leaderboard Update Is still in review @ Apple.