Photon Quantum Tutorial: Beginner Guide to Deterministic Multiplayer in Unity
Learn how to download, install, and set up Photon Quantum 3 inside Unity, and build the foundation of a fully deterministic and cheat-resistant multiplayer game.
This step-by-step tutorial walks you through importing Quantum, understanding its Simulation vs. View workflow, creating components and systems using Quantum’s DSL, sending deterministic input, and preparing both local and online multiplayer.
Perfect for developers who want to create fast, rollback-free, fully deterministic gameplay using Photon Quantum.
In the Video You Will Learn
How to download, import, and set up Photon Quantum 3 inside Unity.
You’ll see how Quantum’s Simulation and View layers work together and why the engine separates them.
Which core Quantum systems appear in the Unity scene (such as the Entity View Updater and Debug Input) and what they do.
How to create your first entity and component using Quantum’s ECS workflow and *.qtn files.
How to build a simple SystemFilter to process gameplay logic each simulation tick.
How to send player input from Unity into the deterministic Quantum simulation.
How to spawn and link a player avatar when a player joins the simulation.
How to configure the player avatar prefab and run a basic online test using a Photon App ID.
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► Photon: https://www.photonengine.com/
► Photon Quantum: https://www.photonengine.com/quantum
► What's New in Quantum 3 https://doc.photonengine.com/quantum/...
► Download Photon Quantum 3: https://doc.photonengine.com/quantum/...
► Photon Dashboard: https://dashboard.photonengine.com/
► Photon Fusion Samples: https://www.photonengine.com/samples
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00:00 Introduction to Photon Quantum
00:30 Downloading & Installing Quantum
01:50 Unity Project Setup
02:15 Quantum Folder Structure
03:10 Exploring the Quantum Game Scene
04:21 Quantum ECS Basics
05:56 Creating Your First QTN Component
07:17 Creating a System
09:30 Prefabs & Preparing for Movement Logic
10:19 Sending Input from Unity to Quantum
11:30 Detecting Player Join & Spawning Player Entity
13:19 Processing Input & Moving the Player
14:04 Assigning Player Avatar Prefab
14:21 Online Setup & App ID
15:09 Building & Testing Online Multiplayer
15:20 Closing Remarks
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About Photon
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Photon is the global leader in multiplayer technology, empowering AAA studios, professional teams, indies, and hobbyists alike. Trusted by developers worldwide, Photon powers thousands of live games and connects over 1.4 billion players monthly across all major gaming platforms. Our cutting-edge state-synchronization and deterministic networking solutions simplify the creation and operation of AAA-quality multiplayer games, setting the industry benchmark for performance and scalability. With robust support for leading engines like Unity and Unreal, and 80+ multiplayer samples spanning genres such as FPS, RTS, and more, Photon equips teams to kickstart and excel in their multiplayer projects.
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#PhotonQuantum #Unity #GameDevelopment #MultiplayerGames #DeterministicEngine #Netcode #QuantumSDK #UnityTutorial #IndieDev #OnlineMultiplayer #Unity3D
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