Local wifi/bluetooth?

I'm going to need to make a relatively simple game that can be played over local wifi/bluetooth on iOS and Android (no, iOS and Android wouldn't be communicating with each other). There would be up to say 4 players sitting near by. Can I do local wifi/bluetooth with Unity? And if so, where would be a good place to start learning how to do it? I'd prefer to stick with the native Unity solution to the problem rather than having to resort to buying/using a 3rd party. Thanks!

 

to do local only networking, you would first have to discover the IP's in the local network, test each one for a specific port and await a valid reply (from your own local multiplayer hosts)

Unity is used to having a master server which hosts lobby's to connect, so that a direct IP address is not needed and the port can be opened in case of any firewalls. This method relies on fixed IP for the server, making it easier to connect.

You could always find a way to do your own UDP broadcast & receiver, which is probably the easiest way to find local network hosts and advertising your existance on the local network to potential clients. From there you can use the Unity networking to connect and play.

 

For iOS, I've recently released Local Multiplayer for iOS/tvOS/macOS, an asset that supports both Bluetooth and peer-to-peer WiFi for local multiplayer. Check it out!
https://www.assetstore.unity3d.com/en/#!/content/88666?aid=1101lHUy&pubref=unityforum
For Android, I also have a Bluetooth-only solution:
https://www.assetstore.unity3d.com/en/#!/content/9643?aid=1101lHUy&pubref=unityforum