Godot 4 Multiplayer: Make Your Own Online Game from Udemy

What's inside

Learning objectives

Make an online multiplayer game using godot’s 4.x multiplayer framework.
Learn how to sync all these mechanics across the internet so that players can interact with each other and work together to complete puzzles.

Create many common co-op puzzle platformer mechanics, such as pressure plates, movable objects, locked doors and more.
Use w4 games lobbies to connect to other players safely over the internet - coming soon!

Make an online multiplayer game using godot’s 4.x multiplayer framework.
Learn how to sync all these mechanics across the internet so that players can interact with each other and work together to complete puzzles.
Create many common co-op puzzle platformer mechanics, such as pressure plates, movable objects, locked doors and more.
Use w4 games lobbies to connect to other players safely over the internet - coming soon!

Syllabus

Introduction & Setup

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Nathan welcomes you to the course.

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We learn about how online multiplayer games work behind the scenes and discuss how we are going to structure our project.

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We introduce the ways that you can get help, support and contribute to the community.

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Any time we change our project during a lecture we will commit that change to a public source control repository for students to access. In this video, we show you how to access that content.

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Nathan introduces you to the section of the course where you’ll be creating the Player Character features such as movement and animation.

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We create our project and import sprites that we’ll be using for the players, terrain, and objects in the world.

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We set up Tile Sets to allow for quick iteration when designing our scenes.

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We create the Player scene and set up their animations that will later be controlled by our movement code.

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We set up input bindings for moving and jumping.

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We play animations based on what kind of movement the player is performing.

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We extend our player movement code to allow for as many consecutive jumps as you want.

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We have our player spawn in their own camera which follows them.

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We add two layers to our background that we can move at different speeds to create a parallax effect.

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We refactor the player script so that the physics_process method doesn’t end up becoming too bloated.

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Nathan introduces you to the section of the course where you’ll be connecting players together and will be syncing game state.

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We create main menu where players will be able to host a match or enter the IP address of the server they wish to join.

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We allow players to start hosting a game that others will be able to connect to.

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We take a quick break to look at Remote Procedure Calls (RPC) before using them in the following lectures.

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We allow players to join a game and then they will be sent to the gameplay scene when the host hits start.

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When the host is ready, then can hit the start button to send all players to the level scene.

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Now that players are sent to the level scene, they need to each have a player spawned in for them to control.

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For data to be synced over the network, we need to assign authority to the correct client for each player, which will let them take control of their own character.

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Nathan introduces you to the section of the course where you’ll be creating puzzle mechanics for our platformer.

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We refactor the player movement logic into a simple, enum based state machine.

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We create our first object to be used in puzzles, a pressure plate that players can stand on to trigger events.

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We create a door that can be opened by other objects in our game, such as the pressure plate we created in the previous lecture.

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We hook up our pressure plate to our door so that one player can stand on it whilst the other walks through into a locked room.

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We create a treasure chest that can be opened when interacted with by a player to reward them with an item.

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We give the player the ability to press a key to interact with objects, such as the treasure chest.

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We create the key item that will be rewarded when the treasure chest is opened

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We create a door that can be opened with a key to exit the level.

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We use our tilemap, along with all our puzzle objects that we’ve been creating to build out an interesting level.

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We create a bridge that requires both players to be present on pressure plates to make the bridge appear.

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We create a pushable object that is synced over the network, but that causes us some interesting problems.

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We use transferal of ownership over the object to allow pushing clients to move the object without network delay or any glitchy movement.

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We change how we are applying forces to our pushable object to make sure that it doesn’t flip or launch into the sky.

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We create an indicator for when players are off of the screen so you can easily find where they are.

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We implement interpolation for any movement that is being synced over the network to make it all look smooth for all clients.

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We set up a second character that has different stats and sprites. Players are now assigned different characters when starting a game.

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We add the ability to change levels or exit the game when the level has been finished,

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Nathan introduces you to the section of the course where you’ll taking your game online to have people connect from all around the world.

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We have a look at some of the options we have available for implementing online gaming services.

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We get our W4 Games account set up and install their Godot plugin.

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We authenticate players when they launch the game, before giving them access to the main menu buttons.

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We create a W4 lobby when starting to host a game that will be joinable by other players.

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We use a host’s code to join their lobby and start playing with them.

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We add a way for players to leave the lobby and return to the main menu, ready to play again.

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We're finished with the course - good luck with your Godot Multiplayer projects, and please share what you come up with!

Traffic lights

Read about what's good

what should give you pause

and possible dealbreakers

Uses Godot 4's multiplayer framework, which is relevant for developers looking to create networked games with the latest features

Covers syncing game mechanics across the internet, which is essential for creating interactive multiplayer experiences

Explores common co-op puzzle platformer mechanics, which provides practical skills for designing engaging gameplay

Requires a basic grasp of Godot and GDScript, which may exclude absolute beginners without prior experience

Uses W4 Games lobbies to connect players, which relies on a third-party service that may have its own terms and conditions

Teaches project structure and source control, which are valuable skills for collaborative development and version management

Reviews summary

Hands-on godot 4 multiplayer networking

According to students, this course offers a solid and practical introduction to building multiplayer games using Godot 4. Learners say the instructor excels at explaining complex networking concepts like server authority and RPCs in an understandable way. The hands-on approach , involving building a co-op puzzle platformer, is highly praised for allowing students to apply knowledge immediately. While the course is considered a valuable step up from single-player development, it requires prior experience with Godot and GDScript , and some felt certain advanced topics or troubleshooting could use more depth . The inclusion of W4 Games integration is noted as a useful, relevant section .

Integration with W4 Games included.

"The section on setting up and using W4 Games lobbies was a valuable addition."

"Learning how to integrate with W4 Games provides a practical way to get online."

"Appreciated the focus on a specific, relevant online service like W4 Games."

Assumes prior Godot/GDScript knowledge.

"This course is definitely for those already comfortable with Godot and GDScript for single-player games."

"Make sure you have the prerequisites down; it moves quickly past the basics."

"It builds heavily on existing Godot knowledge, not a beginner's first Godot course."

Building a game provides hands-on learning.

"Loved building the co-op puzzle platformer step-by-step; it really cemented the learning."

"The practical project is the course's strongest point for me, applying everything immediately."

"Working on a real game project made the networking concepts much more tangible and easier to implement."

Complex networking ideas are explained well.

"The explanations on server authority and RPCs were incredibly clear, finally making sense of these daunting concepts."

"Found the breakdown of multiplayer syncing and how data is shared over the network very easy to follow."

"Instructor did a fantastic job simplifying complex networking topics into understandable lessons."

Some advanced topics could be expanded.

"Could use more coverage on optimization or handling complex multiplayer scenarios."

"Wish there were more tips or examples for troubleshooting common network glitches."

"Some sections felt a bit brief, leaving me wanting more detail on advanced networking patterns."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Godot 4 Multiplayer: Make Your Own Online Game with these activities:

Review Godot Engine Fundamentals

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Reinforce your understanding of the Godot Engine's core concepts, such as scenes, nodes, signals, and the editor interface, to ensure a smooth transition into multiplayer development.

Browse courses on Godot Engine

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Review the official Godot documentation on scenes and nodes.
Practice creating simple games using Godot's editor.
Familiarize yourself with GDScript syntax and basic programming concepts.

Brush up on GDScript Networking Basics

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Revisit the fundamentals of networking in GDScript, including RPCs (Remote Procedure Calls), network synchronization, and client-server architecture, to prepare for the multiplayer aspects of the course.

Browse courses on Networking

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Study Godot's networking API documentation.
Experiment with simple client-server examples in GDScript.
Understand the concepts of authoritative server and client prediction.

Read 'Godot Engine Game Development Projects'

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Gain practical experience with Godot by working through game development projects, which will enhance your problem-solving skills and prepare you for the challenges of multiplayer game development.

View Godot 4 Game Development Projects: Build five... on Amazon

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Select a project from the book that aligns with your interests.
Follow the book's instructions to build the game step-by-step.
Experiment with modifying the game to add your own features.

Four other activities

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Collaborate on a Simple Multiplayer Prototype

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Practice implementing basic multiplayer functionality, such as player synchronization and simple interactions, with a peer to reinforce your understanding of networking concepts.

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Find a classmate or fellow learner to collaborate with.
Design a simple multiplayer game concept together.
Divide the tasks and implement the game using Godot's networking features.
Test and debug the game together.

Design a Co-op Puzzle Mechanic

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Apply your knowledge by designing and implementing a unique co-op puzzle mechanic that requires players to work together to solve it, solidifying your understanding of game design and multiplayer synchronization.

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Brainstorm ideas for co-op puzzle mechanics.
Choose one mechanic and design its implementation in Godot.
Implement the mechanic using GDScript and Godot's networking features.
Test the mechanic with multiple players and refine its design.

Contribute to a Godot Multiplayer Project

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Deepen your understanding of multiplayer game development by contributing to an existing open-source Godot project, gaining experience with real-world codebases and collaborative development workflows.

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Find an open-source Godot multiplayer project on platforms like GitHub.
Explore the project's codebase and identify areas where you can contribute.
Submit bug fixes, new features, or documentation improvements.
Participate in code reviews and discussions with other contributors.

Write a Blog Post on Godot Multiplayer Challenges

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Reflect on your learning experience by writing a blog post about the challenges and solutions you encountered while developing multiplayer games in Godot, sharing your knowledge with the community.

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Identify the key challenges you faced during the course.
Document the solutions you found to overcome those challenges.
Write a clear and concise blog post explaining the challenges and solutions.
Share your blog post on relevant online forums and communities.

Career center

Learners who complete Godot 4 Multiplayer: Make Your Own Online Game will develop knowledge and skills that may be useful to these careers:

Gameplay Programmer

A Gameplay Programmer is responsible for implementing the core mechanics of a game, including player movement, interactions, and game rules. This course is directly related to the role of a Gameplay Programmer as it extensively covers creating an engaging multiplayer game with Godot's latest framework. The course provides hands-on experience in syncing game mechanics, which is a critical aspect of gameplay programming in multiplayer games. A Gameplay Programmer can also use this course to learn how to create common co-op puzzle mechanics such as pressure plates and movable objects.

See salaries and explore the career path for Gameplay Programmer

Multiplayer Game Developer

A Multiplayer Game Developer specializes in creating the online aspects of a video game. Their job includes coding for player connections, data synchronization, and ensuring a smooth online interaction. The course, focused on making an online multiplayer game using Godot's 4.x framework, directly aligns with the responsibilities of a Multiplayer Game Developer. The course also teaches how to connect players using W4 Games lobbies, which is directly relevant to this role. By delving into syncing game mechanics, this course provides foundational knowledge for a career as a Multiplayer Game Developer.

See salaries and explore the career path for Multiplayer Game Developer

Indie Game Developer

An Indie Game Developer works on game development independently, wearing many hats from design to programming to publishing. This course will be valuable for an Indie Game Developer looking to make a multiplayer game. By teaching Godot 4's multiplayer framework and W4 Games lobbies, the course helps with building the foundational aspects of online gaming. An Indie Game Developer will appreciate the course's approach of breaking down complex tasks like data syncing and server client authority into lessons.

See salaries and explore the career path for Indie Game Developer

Game Programmer

A Game Programmer translates game design concepts into functional code, bringing the game to life. This role involves implementing game mechanics, user interfaces, and network interactions using programming languages. This course helps a Game Programmer by providing training in Godot's multiplayer framework. The course teaches how to synchronize game mechanics across the internet, which is a crucial aspect of online game development. Specifically, the course directly addresses the challenge of connecting players and syncing game state in Godot. This course also covers creating common co-op puzzle platformer mechanics, further expanding the repertoire of a Game Programmer.

See salaries and explore the career path for Game Programmer

Network Programmer

A Network Programmer works with the technical aspects of online games, focusing on the code that allows players to connect and interact. This involves handling data transfer, server management, and ensuring a stable and responsive multiplayer experience. This course helps a Network Programmer by demonstrating the implementation of network functionality in Godot 4. It teaches data syncing across the internet as well as connecting players, which provides the core knowledge needed for working with networking in games. A Network Programmer will also benefit from learning practical skills on using W4 Games lobbies to connect players.

See salaries and explore the career path for Network Programmer

Game Designer

A Game Designer creates the vision for a game including its mechanics, rules, and overall player experience. While Game Designers may not be programming themselves, they need to have a deep understanding of how game mechanics are implemented. This course may be useful for a Game Designer because it dives deep into the implementation of co-op mechanics. Specifically, the course demonstrates how to design and implement interactive puzzles. Game Designers would also benefit from the course's focus on creating network interactions.

See salaries and explore the career path for Game Designer

Backend Developer

A Backend Developer builds the server-side logic and infrastructure that powers applications, often working with databases and APIs. This course is helpful for a Backend Developer because it involves networking and state management, which are key concepts in backend development. Although this course is focused on a game, the lessons on how to sync data between clients and servers is highly relevant to backend work. The course specifically teaches about using W4 Games lobbies to connect players.

See salaries and explore the career path for Backend Developer

Software Engineer

A Software Engineer develops and maintains software applications, often working with complex systems and logic. Though the course is focused on game development, a Software Engineer can benefit from it. The course involves building a fully functional software package from the ground up, including both client and server side functionality. This involves many software engineering principles including state management, working with external libraries and APIs, and testing and iteration. The course shows how to apply software engineering principles in the context of video games.

See salaries and explore the career path for Software Engineer

Educator

An Educator specializing in game development teaches game design and programming to students. This course is useful for an Educator as it provides a practical example of how to build a multiplayer game. By going through the course and learning the steps, an Educator will be able to develop their own lesson plans, assignments and projects. An Educator can also use the course as a model of a well structured project.

See salaries and explore the career path for Educator

Game Engine Developer

A Game Engine Developer works on the core technology that powers video games, building and maintaining systems for rendering graphics, physics, and networking. This course may be helpful for a Game Engine Developer because it dives deeply into the networking layer. The course gives a unique opportunity to study networking implementation on an already existing game engine, Godot 4. A Game Engine Developer can use the knowledge gained about network functionality to better understand how game engines process network interaction with peers.

See salaries and explore the career path for Game Engine Developer

Tools Programmer

A Tools Programmer develops software that helps other game developers, such as level editors and diagnostic tools. A Tools Programmer would find this course beneficial since it goes over many common problems that can occur when making complex games. The course shows how to establish a network connection between clients and servers, but also how to manage the game state. A Tools Programmer would be able to abstract these concepts into a tool for use by other developers who do not have expertise in networking. The course also delves into the design of puzzle mechanics.

See salaries and explore the career path for Tools Programmer

Technical Director

A Technical Director oversees the technical aspects of game development, ensuring that the project meets technical standards. While this role often requires years of experience, learning the underlying technical challenges of multiplayer game development can be helpful for aspiring directors. This course directly addresses the challenges of creating an online multiplayer game. It teaches skills such as syncing game mechanics across the network, and connecting players over the internet. A Technical Director will better understand the challenges of game development through this course and have a stronger foundation in the multiplayer space.

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Simulation Engineer

A Simulation Engineer creates complex simulations to model real-world or theoretical systems. This course may be useful for a Simulation Engineer because it involves creating complex interactive systems. The course teaches methods of synchronizing game state across the network. Although this is applied in the context of the game in the course, synchronizing state is a problem that arises in many simulation contexts. By diving into techniques for synchronizing state, a Simulation Engineer can learn valuable concepts for their work.

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Front-End Developer

A Front End Developer works on building the user interface and experience for software. The course may be helpful for a Front End Developer, as they will get an opportunity to learn practical software development skills. While the course covers game programming and not web based development, there is some overlap in the areas of programming and interface design. By understanding how to build a user interface in the context of a game, a Front End Developer may gain valuable skills that are transferable to web development.

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Technical Artist

A Technical Artist bridges the gap between artists and programmers, optimizing art assets for games and developing tools for artists. A Technical Artist may find this course helpful to gain insight into how game mechanics are implemented. The course covers a wide range of topics from player movement and animation to network interactions. Although not directly related to this role, understanding the technical underpinnings of game development can help a Technical Artist better support the art creation pipeline.

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Reading list

We've selected one books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Godot 4 Multiplayer: Make Your Own Online Game.

Godot 4 Game Development Projects

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Provides practical examples of game development projects using the Godot Engine. It covers a range of genres and techniques, offering valuable insights into project structure, code organization, and game design principles. While not specifically focused on multiplayer, it strengthens your overall Godot skills. This book is useful as additional reading to broaden your understanding of game development in Godot.

Godot 4 Game Development Projects: Build five cross...

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Godot 4 Multiplayer

Make Your Own Online Game

What's inside

Learning objectives

Syllabus

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Reviews summary

Hands-on godot 4 multiplayer networking

Activities

Career center

Reading list

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