Create A Complete Online Co-Op Multiplayer Game In Godot 4

Learn how to create a complete 2D online cooperative multiplayer game in Godot 4.4+!

What you'll learn

Server-authoritative architecture for online multiplayer games using Godot’s high-level networking tools.

Remote Procedure Calls (RPCs) to synchronize game state across clients and the server.

Twin-stick shooter controls that support cooperative multiplayer gameplay.

Compose game scenes using modular components to create a flexible and maintainable project structure.

Develop UIs using Godot’s Control nodes and UI theming system.

Gameplay systems including a multiplayer lobby, multiplayer connections, combat, & more!

Requirements

Familiarity with general programming concepts

Description

This course teaches you everything you need to know to create a fully playable online cooperative multiplayer game from start to finish using the Godot Engine (version 4.4 or newer).Core features and mechanics you'll learn include:Server-authoritative multiplayer architectureRemote Procedure Calls (RPCs) for state synchronizationGodot’s high-level multiplayer networking systemTwin-stick shooter controlsModular scene compositionUI layout with Control nodes and themingGameplay programming with GDScriptThis is just a highlight - check out the full course outline for a complete list of topics covered!Whether you're just getting started with Godot or looking to get into online multiplayer game development, this course will walk you through the entire process. By the end, you’ll have a solid understanding of the key concepts and systems needed to build and publish a complete online 2D co-op game.This course is perfect for you if:You’re new to Godot and want a hands-on projectYou’re interested in building multiplayer gamesYou have basic programming experience and want to apply it to game devNote: This course focuses on building an online multiplayer game in Godot 4.4+. It does not cover programming fundamentals. Familiarity with coding concepts is strongly recommended before enrolling - any programming experience will do. GDScript is easy to learn!Several lessons are available for free preview - watch them to see if the course pace and teaching style are a good fit for you!

Overview

Section 1: Setting Up the Foundation

Lecture 1 Godot Setup and Orientation

Lecture 2 Creating a Basic Player Scene

Lecture 3 Adding Basic Movement and Input Handling to the Player

Lecture 4 Laying the Groundwork for Multiplayer Connection

Lecture 5 Writing Our First Multiplayer Code

Lecture 6 Basic State Synchronization and First RPC Call

Lecture 7 Replicating Players Across the Network

Lecture 8 Input Authority

Lecture 9 Synchronizing Player Positions

Lecture 10 Display Configuration

Lecture 11 Adding Player Art

Lecture 12 Adding a Weapon to the Player

Lecture 13 Firing Bullets from the Weapon

Lecture 14 Synchronizing Bullets

Lecture 15 Creating Bullets at Proper Intervals

Lecture 16 Beginning Work on an Enemy

Lecture 17 Implementing Bullet Collision

Lecture 18 Adding Basic Enemy Health & Synchronization

Lecture 19 Adding an Arena

Lecture 20 Spawning Enemies

Lecture 21 Basic Enemy AI

Lecture 22 Adding Round Structure for Enemy Spawns

Lecture 23 Creating a Health Component

Lecture 24 Global Signals and Advancing Rounds

Lecture 25 Hurtbox and Hitbox Components

Lecture 26 Making Enemies Damage The Player

Lecture 27 Addressing Warnings

Section 2: Improving the Look of the Game

Lecture 28 Y-Sorting

Lecture 29 Proper Weapon Rotation & Player Flipping

Lecture 30 Adding an Animated Background

Lecture 31 Creating a Weapon Animation

Lecture 32 Synchronizing Weapon Animations

Lecture 33 Creating a Muzzle Flash Particle

Lecture 34 Spawning Muzzle Flashes In Game

Lecture 35 Adding a Visual Timer and Round Counter

Lecture 36 Synchronizing Round Timer

Section 3: Adding More Mechanics

Lecture 37 Improving Enemies

Lecture 38 Adding an Enemy State Machine

Lecture 39 Adding Enemy Dash Attack

Lecture 40 Adding an Enemy Attack Indicator

Lecture 41 Synchronizing the State Machine

Lecture 42 Handling Player Death

Lecture 43 Handling Game Over

Lecture 44 Fixing Player Input Synchronizer

Lecture 45 Handling Peer Disconnection

Section 4: Adding Even More Polish

Lecture 46 Adding Hit Flash

Lecture 47 Adding Impact Particles

Lecture 48 Adding Persistent Ground Particles

Lecture 49 Adding Camera Shake

Lecture 50 Adding a Victory Condition

Section 5: User Interface

Lecture 51 Button Theming & Main Menu

Lecture 52 Creating a Multiplayer Menu

Lecture 53 Enhancing Multiplayer Menu

Lecture 54 Making Multiplayer Settings Configurable

Lecture 55 Handling Connection Errors

Lecture 56 Showing Player Names In-Game

Lecture 57 Player Health UI

Lecture 58 Fixing Single-Player Bug

Lecture 59 Making Health UI Functional

Lecture 60 Fixing Player Name Bug

Lecture 61 Creating a Pause Menu

Lecture 62 Making Pause Menu Functional

Lecture 63 Adding Ready-Up to Lobby

Lecture 64 Adding Ready-Up UI Part 1

Lecture 65 Adding Ready-Up UI Part 2

Section 6: Finalizing Game Mechanics

Lecture 66 Adding an Upgrade System with Custom Resources

Lecture 67 Synchronizing Upgrade Options to Clients

Lecture 68 Allow Clients to Select Upgrades

Lecture 69 Fixing Client Upgrade Authority

Lecture 70 Synchronizing Upgrade Option State

Lecture 71 Making Upgrades Functional Part 1

Lecture 72 Making Upgrades Functional Part 2

Lecture 73 Advancing Rounds After Upgrading

Lecture 74 Adding Visuals to Upgrades

Lecture 75 Showing Upgrade Tooltips

Section 7: Final Polish

Lecture 76 Animations for Player and Enemy

Lecture 77 Adding Acceleration to Player Movement

Lecture 78 Tweaking Enemy Attack Behavior

Lecture 79 Preventing Bullets from Hitting Multiple Targets

Lecture 80 Adding Invulnerability After Taking Damage

Lecture 81 Player Damage Feedback

Lecture 82 Adding a Custom Mouse Cursor

Lecture 83 Adding Sound Effects

Lecture 84 Adding Music

Lecture 85 Creating an Options Menu

Lecture 86 Exporting the Game

Lecture 87 Connecting Over the Real Internet

Lecture 88 Congratulations and Further Areas of Exploration

Aspiring game developers who want to make multiplayer games,Seasoned Godot developers with an interest in multiplayer,Beginner to intermediate Godot users looking for a complete, hands-on project,Programmers new to game development,Hobbyists and developers looking to learn Godot in a comprehensive way