If you want a room + lobby based system for your game project without depending on Photon, then this is for you!
I wrote these solutions for alternative networking packages specifically for the Slendytubbies Guardian Collection.
We are tired of Photon's horrible hacking problems, so these solutions allow us to have a lobby+rooms system without depending on Photon or paying the large photon licensing fees.
Feel free to use these in your own game projects, enjoy!

Think of this solution as a server authoritive (and free) alternative to Photon.
This solution follows the KISS design principle (Keep it simple, stupid).
Features
Dynamic room creation & destruction with automatic server‑side cleanup
SceneInterestManagement–powered isolation: players in Room A can’t see or affect Room B
Basic lobby example ( that uses OnGUI ) for creating a room or joining an existing room from the room list
Player prefab swapping (ReplacePlayerForConnection), LobbyNetworkPlayer & RoomNetworkPlayer prefabs
Auto‑unload of empty rooms and client room‑scene cleanup on disconnect
One server, one port, multiple isolated rooms
Download Mirror version here;
https://github.com/Sean-Zeo/Multi-Room-M...rror-Unity
Download FishNet version here;
https://github.com/Sean-Zeo/Multi-Room-M...hNet-Unity

