U6-First-Person-Multiplayer

Important: This repository is provided as a reference sample only. The maintainers will not and cannot accept pull requests, GitHub review requests, or any other GitHub-hosted issue management requests (bug reports, feature requests, discussions, etc.).

Singleplayer	Multiplayer

Overview

A first-person multiplayer sample project built with Unity 6 demonstrating how to combine Netcode for GameObjects, Unity Relay, and Vivox proximity voice chat into a complete networked experience for up to 4 players.

Players can walk, sprint, jump, and ground-slam through a shared environment, pick up and throw physics objects, and communicate via 3D positional voice chat — all with server-authoritative networking.

Getting Started

1. Clone this repository.
2. Open the project in Unity 6 (6000.3.5f2+).
3. Link the project to a Unity Cloud project with Relay and Vivox enabled via Edit > Project Settings > Services.
4. Open Assets/Scenes/Multiplayer.unity and enter Play mode to host a session, or open Assets/Scenes/Singleplayer.unity for solo play.

Features

• First-person movement — walk, sprint, jump (with coyote time and jump buffering), air control, and ground slam
• Networked item interaction — pick up, hold, rotate, and throw physics objects with server-authoritative positioning
• Lobby and Relay flow — host or join sessions through Unity Relay with a clean lobby UI; supports up to 4 players
• Proximity voice chat — 3D positional audio via Vivox with a visible speaking indicator
• Player differentiation — unique head colours assigned per player (Blue, Pink, Green, Yellow)
• Singleplayer mode — a standalone scene for exploring mechanics without networking
• Connection approval — server-side player cap and designated spawn points

Key Scripts

Script	Purpose
GameManager.cs	Singleton managing game state (Lobby/Playing) via NetworkVariable
LobbyController.cs	Coordinates Relay, NetworkManager, and lobby UI
RelayManager.cs	Unity Relay allocation, anonymous auth, Vivox login
PlayerMovement.cs	FPS CharacterController — walk, sprint, jump, slam, camera look
PlayerInteraction.cs	Raycast-based item pickup, drop, and rotation
PickupItem.cs	Server-authoritative networked physics object
PlayerSpawnManager.cs	Connection approval and spawn point assignment
ProximityVoice.cs	Vivox 3D positional voice channel management

Key Packages

Package	Version
Netcode for GameObjects	2.12.0
Unity Transport	(via NGO)
Unity Relay / Multiplayer Services	2.2.3
Vivox	16.11.0
Input System	1.17.0
Cinemachine	3.1.3
Universal Render Pipeline	17.3.0

Network Architecture

License

Licensed under the Unity Companion License for Unity-dependent projects. See LICENSE.md for details.