unity-multiplayer

Installation
SKILL.md

Unity Multiplayer & Networking

Multiplayer Architecture Overview

Unity's multiplayer ecosystem comprises several layers:

Layer Package/Service Purpose
High-Level Netcode for GameObjects GameObject-based networking logic
High-Level Netcode for Entities DOTS-based networking
Low-Level Unity Transport (com.unity.transport) UDP/WebSocket communication with optional reliability, ordering, fragmentation
Services Relay NAT traversal via cloud relay servers
Services Lobby Matchmaking and session discovery
Services Sessions SDK Player group management
Tools Multiplayer Play Mode Simulate up to 4 players in-editor
Tools Multiplayer Tools Analysis, debugging, testing utilities
Related skills
Installs
15
GitHub Stars
14
First Seen
Mar 19, 2026