Hello, I’m new here and I couldn’t find the topic anywhere else so I’ll post my question here. Assuming I have already made my iPhone game offline with AI controlled opponents, where should I start to look for instructions on how to make the game able to randomly find opponents who are playing the game at the same time online? I’m open for any advice and direction here. I am fairly familiar with making games but have never delved into having an online lobby or such.
Thank you for your time!
Shade-
Disclosure: I work at Nextpeer. We provide an SDK for Unity (Android and iOS), that provides multiplayer functionality for games, including random matchmaking. Which sounds like exactly what you’re asking for 
if you’re interested, visit us as nextpeer.com.
Having said that, there are a lot of other options. For example, there’s a lot of buzz around Photon, with a 13-part tutorial on YouTube about how to make an Unreal Tournament clone. Then there’s good old GameCenter, if your game is iOS only. Which is best for you depends a lot on the type of your game and what features you’re looking for.
If you have developed game then post it on Google Play Store.
Thanks for the responses guys. I haven’t made the game yet, but when I do I’ll probably take both of your advice. I was just making sure that multiplayer was something I could just add to the game, and not something I would have to embed into the games programming from the start.
Thanks again for your help!
Much appreciated-
-Shade-