Browse free open source JavaScript Games and projects below. Use the toggles on the left to filter open source JavaScript Games by OS, license, language, programming language, and project status.

  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • Context for your AI agents Icon
    Context for your AI agents

    Crawl websites, sync to vector databases, and power RAG applications. Pre-built integrations for LLM pipelines and AI assistants.

    Build data pipelines that feed your AI models and agents without managing infrastructure. Crawl any website, transform content, and push directly to your preferred vector store. Use 10,000+ tools for RAG applications, AI assistants, and real-time knowledge bases. Monitor site changes, trigger workflows on new data, and keep your AIs fed with fresh, structured information. Cloud-native, API-first, and free to start until you need to scale.
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  • 1
    Warzone 2100

    Warzone 2100

    RTS game with the theme of Strategy by Design

    You command the forces of “The Project” in a battle to rebuild the world after mankind has almost been destroyed by nuclear missiles. The game offers a full campaign with optional (but strongly recommended!), videos, battle against four factions, multi-player and single-player skirmish modes, and an extensive tech tree and a full unit designer. Multi-player is also cross-platform, battle your friends with any OS, Windows, Linux or Mac, it all works seamlessly! We also offer 100% portable Windows builds, take the game and install it anywhere! Our source repo is now at https://github.com/Warzone2100/warzone2100 Warzone 2100 works on both 32 & 64 bit Windows 7 or higher, 32 or 64 bit Linux, & macOS 10.14+.
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    Downloads: 2,255 This Week
    Last Update:
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  • 2
    FlightGear - Flight Simulator

    FlightGear - Flight Simulator

    FlightGear Flight Simulator: free open-source multiplatform flight sim

    Founded in 1997, FlightGear is developed by a worldwide group of volunteers, brought together by a shared ambition to create the most realistic flight simulator possible that is free to use, modify and distribute. FlightGear is used all over the world by desktop flight simulator enthusiasts, for research in universities and for interactive exhibits in museums. FlightGear features more than 400 aircraft, a worldwide scenery database, a multi-player environment, detailed sky modelling, a flexible and open aircraft modelling system, varied networking options, multiple display support, a powerful scripting language and an open architecture. Best of all, being open-source, the simulator is owned by the community and everyone is encouraged to contribute.
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    Downloads: 2,820 This Week
    Last Update:
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  • 3
    OriLauncher

    OriLauncher

    Fast, user-friendly cross-platform custom launcher for Minecraft

    OriLauncher is a free and open source custom launcher for the popular game Minecraft designed to streamline the process of launching the game with a modern, user-friendly interface. Built using web and desktop technologies like Svelte, Electron, and Vite, it aims to provide a fast and responsive experience for players across multiple platforms including Windows, macOS, and Linux. The launcher enables users to switch quickly between different Minecraft environments (such as Vanilla, Forge, or Fabric) with just one click, eliminating manual setup steps. It also offers support for managing multiple user accounts, remembering both Microsoft and offline profiles to make logging in simpler and more fluid. Players have control over technical settings like RAM allocation and Java version selection directly within the launcher, allowing them to optimize performance for their system.
    Downloads: 74 This Week
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  • 4
    Mineflayer

    Mineflayer

    Create Minecraft bots with a powerful and high level JavaScript API

    Create Minecraft bots with a powerful, stable, and high-level JavaScript API, also usable from Python. First time using Node.js? You may want to start with the tutorial. Know Python? Check out some Python examples and try out Mineflayer on Google Colab. Supports Minecraft 1.8, 1.9, 1.10, 1.11, 1.12, 1.13, 1.14, 1.15, 1.16, 1.17 and 1.18. Block knowledge. You can query the world around you. Milliseconds to find any block. Miscellaneous stuff such as knowing your health and whether it is raining. Parse and serialize Minecraft packets, plus authentication and encryption. Language independent module providing Minecraft data for Minecraft clients, servers, and libraries. Node.js library to interact with Mojang's authentication system, known as Yggdrasil. Represent a Minecraft biome with its associated data. Mineflayer is pluggable; anyone can create a plugin that adds an even higher level API on top of Mineflayer.
    Downloads: 40 This Week
    Last Update:
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  • Easy-to-use Business Software for the Waste Management Software Industry Icon
    Easy-to-use Business Software for the Waste Management Software Industry

    Increase efficiency, expedite accounts receivables, optimize routes, acquire new customers, & more!

    DOP Software’s mission is to streamline waste and recycling business’ processes by providing them with dynamic, comprehensive software and services that increase productivity and quality of performance.
    Learn More
  • 5
    GDLauncher

    GDLauncher

    GDLauncher is a simple, yet powerful Minecraft custom launcher

    GDLauncher is a simple, yet powerful Minecraft custom launcher with a strong focus on the user experience. Our main focus is to provide a powerful launcher but keeping the UI clean and modern. You'll be able to browse and download any mod pack directly from within the launcher! You can play vanilla, forge and fabric directly from the launcher, without needing to download anything else. You can easily download mods and keep them up to date. You don't need to have java installed on your pc. We will automatically download the best java release to ensure complete compatibility. You don't need to have java installed, a suitable version will be downloaded automatically. It's as easy as pie to install the vanilla game, forge, fabric, and all curseforge modpacks. No further action from the user is required.
    Downloads: 39 This Week
    Last Update:
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  • 6
    Blooklet-utility-mod

    Blooklet-utility-mod

    A userscript for Blooklet, compatible with tampermonkey

    This script is created for research and education purposes. Abusive usage of this script is not tolerated and the author is not responsible for any damage or harm caused due to usage of the script. Features such as skin unlocks work by intercepting blooket's request to its server and modifying the response data to unlock skins. This request only happens once, so once the request is made, the feature can no longer be enabled/disabled. The ability to unlock skins requires the name of the skin to be known, include those of which that are hidden. If you know a skin name and would like to contribute, please open an issue and it will be added. Install Tampermonkey, add the contents of index.js to tampermonkey. Restart your browser and use right ctrl to activate/deactivate the menu.
    Downloads: 34 This Week
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  • 7
    Blockly Games

    Blockly Games

    Games for tomorrow's programmers

    Blockly Games is a collection of educational games that teach core programming concepts using Google’s Blockly visual blocks. Each game introduces ideas like sequencing, loops, conditionals, functions, and variables through playful puzzles that gradually increase in difficulty. Under the hood, the block programs compile to JavaScript, giving learners a bridge from drag-and-drop logic to real code. The activities are self-contained and browser-based, requiring no installation, which makes them suitable for classrooms and workshops. Progression is scaffolded: earlier levels constrain the toolset, while later levels unlock more expressive blocks and optional textual views. The project’s emphasis on immediate visual feedback and forgiving iteration lowers the barrier for first-time programmers while still rewarding mastery.
    Downloads: 30 This Week
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  • 8
    BlooketUI

    BlooketUI

    The best Blooket Multitool out there

    The best Blooket Multitool out there. A script that uses a graphical user interface to make Blooket cheating easier than ever. Copy the code of src.js by pressing CTRL + A, now paste that into your browser console (CTRL + SHIFT + I). Copy the code from bookmarklet.js by pressing CTRL + A, and create a new Bookmark and paste the code you copied in the URL option.
    Downloads: 30 This Week
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  • 9
    PlayCanvas Engine

    PlayCanvas Engine

    Fast and lightweight JavaScript game engine built on WebGL and glTF

    PlayCanvas is an open-source game engine. It uses HTML5 and WebGL to run games and other interactive 3D content in any mobile or desktop browser. PlayCanvas is used by leading companies in video games, advertising and visualization such as Animech, Arm, BMW, Disney, Facebook, Famobi, Funday Factory, IGT, King, Miniclip, Leapfrog, Mojiworks, Mozilla, Nickelodeon, Nordeus, NOWWA, PikPok, PlaySide Studios, Polaris, Product Madness, Samsung, Snap, Spry Fox, Zeptolab, Zynga. The PlayCanvas Engine gives incredible performance, even on devices such as the iPhone 4S. PlayCanvas ensures a fast loading time by using multiple features such as script concatenation, minification, deferred loading of non-essential assets and more. PlayCanvas has many team features such as being able to chat with your teammates directly from within the Editor.
    Downloads: 26 This Week
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  • HOA Software Icon
    HOA Software

    Smarter Community Management Starts Here

    Simplify HOA management with software that handles everything from financials to communication.
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  • 10
    answer.js

    answer.js

    An open source blooket auto-player / cheat

    A bookmarklet-based blooket auto-player that uses the offical blooket api to get question answers. I also made blooket-rng-tool to help with RNG-based game modes, you should check it out. Execute (click on bookmark) on the PIN screen, then enter pin as you normally would. It will auto-play the game for you, and get all questions correct.
    Downloads: 24 This Week
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  • 11
    Blooket Hack game

    Blooket Hack game

    Best blooket hack around

    Best blooket hack around Please star this project. It works Fine if you need help just comment It and I will fix It. Simply select a hack folder and copy it then on your computer left click and click on inspect then go to console and paste the hack in then refresh your browser. Simply made by javascript.
    Downloads: 23 This Week
    Last Update:
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  • 12
    Habitica

    Habitica

    A habit tracker app which treats your goals like a Role Playing Game

    Get motivated to achieve your goals. Now is the time to have fun while completing your tasks! Join more than 4 million Habiticans and improve your life one task at a time. Habitica is a free habit building and productivity app that takes your real life as a game. With in-game rewards and punishments to motivate you and a strong social network to inspire you, Habitica can help you achieve your goals to be healthy, hardworking, and happy. Stay responsible by following and maintaining your Habits, Daily Tasks and To-Do Tasks with habitica's mobile apps and the website, both easy to use. Cross off tasks to level up your Avatar, and unlock in-game features like battle armor, mysterious pets, magical abilities, and even missions! Fight monsters with other Habitica users! Use the Gold you earn to buy in-game or custom rewards, like watching an episode of your favorite TV series.
    Downloads: 19 This Week
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  • 13
    0 A.D.

    0 A.D.

    0 A.D. is a free, open-source, cross-platform real-time strategy game.

    0 A.D. (pronounced "zero ey-dee") is a cross-platform real-time strategy (RTS) game of ancient warfare. It's a historically-based war/economy game that allows players to relive or rewrite the history of ancient civilizations, each depicted at their peak of economic growth and military prowess.
    Downloads: 69 This Week
    Last Update:
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  • 14
    JudoShiai is a set of programs that help to organize a judo tournament.
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    Downloads: 90 This Week
    Last Update:
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  • 15
    Helios Launcher

    Helios Launcher

    Custom launcher for modded minecraft written in Electron and Node.js

    A customizable Minecraft launcher allows players to manage multiple instances and mod packs.
    Downloads: 13 This Week
    Last Update:
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  • 16
    Blooket

    Blooket

    Collection of utilities that interact with the Blooket API / website

    A collection of scripts and programs designed to interact with the Blooket API and website to give users advanced control over stuff. Utilities that interact with the Blooket API / website. For IOS please view the IOS/Apple section of this file, for Android/Samsung/Google OS please view the bookmarklet section. Before running the script on the Blooks page, make sure you click on a non-common blook. Check for any mistakes you may have made. If you are certain it is a problem with the code, go to the Issues tab of the repo and create a new issue.
    Downloads: 11 This Week
    Last Update:
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  • 17
    Sabaki

    Sabaki

    An elegant Go board and SGF editor for a more civilized age

    An elegant Go board and SGF editor for a more civilized age. Sabaki is a modern, elegant, cross-platform Go/Baduk/Weiqi board and SGF editor for a more civilized age. It’s free, open source and uses web technology based on Electron. You can see its code, contribute or report an issue at our GitHub repository. Sabaki offers a variety of board markup tools, including the SGF 4-compliant line and arrow tool. Annotate your positions and moves, set hotspots in your favorite games, write reviews in Markdown. Sabaki also supports SGF game containers, saving and reading multiple games within one file. Score your games using area or territory counting. You can also use the score estimator to see which player is ahead in mid-game. Toggle the life & death status of groups to refine the estimation.
    Downloads: 10 This Week
    Last Update:
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  • 18
    Bitburner

    Bitburner

    Bitburner Game

    Welcome to Bitburner, a cyberpunk-themed incremental RPG! The game takes place in a dark, dystopian future. The year is 2077. Bitburner is a programming-based incremental game that revolves around hacking and cyberpunk themes. Bitburner is a programming-based incremental game that revolves around hacking and cyberpunk themes. The game is currently in the early beta stage of development. Bitburner is a cyberpunk-themed incremental RPG where you, the player, take the role of an unknown hacker in a dark, dystopian world. When a mysterious hacker called jump3R messages you, he/she confirms your suspicions that there is something wrong with the world around you. Now, aided by jump3R, you embark on a quest to gain money and power by any means necessary, in the hopes that this will lead to uncovering the secrets that you’ve been searching for.
    Downloads: 9 This Week
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  • 19
    Tower Building Game

    Tower Building Game

    HTML5 Canvas Tower Building Game

    Tower Building Game is a small game project — likely implementing a classic “tower defense” or “tower-based” game — designed to showcase game-development fundamentals such as rendering, game logic, user interaction, and possibly simple physics or animations. As an open-source repository, tower_game aims not only to deliver a playable game, but also to serve as a learning resource or template: developers can inspect its code, understand how game loops, input handling, asset management, and state updates are organized. This makes it useful for programmers who are curious about games but don’t want to start from scratch. Because simple games often involve fewer dependencies and easier build processes than full-scale games, tower_game can be a good starting point for hobbyist developers, students learning programming or graphics, or for integration as a mini-game inside larger projects. Additionally, its open-source nature lets contributors fork and improve it.
    Downloads: 8 This Week
    Last Update:
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  • 20
    microStudio

    microStudio

    Free, open source game engine online

    microStudio is a free, open source game engine online. It is also a platform to learn and practice programming. microStudio can be used for free. You can also install your own copy, to work locally or on your own server for your team or classroom. microStudio is available online, this is the simpler and the preferred way, you will have access to all the online collaboration features, online publishing, and more export features. You don't even need to create an account, you can start working as a guest. microStudio includes all you need to write code, create sprites and maps for your 2D game. All from your web browser. Your project is stored in the cloud, and accessible from anywhere. Write your game code in microScript, a simple language inspired by Lua. The documentation is always there to help. Create cool demos in just a few lines of code. microScript shines by its simplicity and interactivity. But you can also code in JavaScript, Python, or Lua if you prefer.
    Downloads: 8 This Week
    Last Update:
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  • 21
    Prince of Persia (JS)

    Prince of Persia (JS)

    Prince of Persia reimplementation written in HTML5 / JavaScript

    PrinceJS is a faithful JavaScript remake of the classic 1989 game "Prince of Persia." It recreates the original gameplay, level design, and character animations in modern browsers using HTML5 technologies.
    Downloads: 7 This Week
    Last Update:
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  • 22
    Typing Baba: Hindi Typing Tutor

    Typing Baba: Hindi Typing Tutor

    Typing Baba: Hindi Typing Tutor, Learn Hindi typing

    Typingbaba: Hindi typing tutor is an app made for learners of each and every capacity. It will improve the learning curve of every user. Typing baba is designed for hindi typing learners besides this it will help the intermediate learners to excel via accectuating and refining their skill and strong points. It includes hindi typing lessons which are meant to increase typing speed and accuracy of users. This tutor is designed by taking into account all shortcomings of new users so that in short time they can achieve great progress bu weeding out all the stumbling process of learning. We developed this typing tutor after having more than enough experience in making the individuals trained. Features: Hindi Typing Tutor KrutiDev 010
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    Downloads: 172 This Week
    Last Update:
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  • 23
    IsoCity

    IsoCity

    A isometric city builder in JavaScript

    Isocity is an interactive web-based project that allows users to create their own isometric cities using modular blocks. It's designed as a fun and creative way to build pixel art cities.
    Downloads: 6 This Week
    Last Update:
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  • 24
    Matter.js

    Matter.js

    A 2D rigid body physics engine for the web

    Matter.js is a flexible 2D rigid body physics engine written in JavaScript, designed for use in web applications to simulate real-world physical interactions within the browser. It offers a comprehensive set of physics features like gravity, collisions, restitution (bounces), friction, sleeping bodies, and constraint systems that enable developers to build interacting objects with realistic motion. This engine can power everything from dynamic interactive animations and educational simulations to fully fledged physics-based games, and it works across major browsers and devices. Through modules such as Matter.Body, Matter.Composite, and Matter.Constraint, developers can create complex scenes with multiple bodies, jointed structures, and collision responses. Matter.js is popular in the web development community due to its simplicity, extensibility, and rich documentation, allowing both beginners and experienced programmers to leverage physics without deep expertise.
    Downloads: 6 This Week
    Last Update:
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  • 25
    Shiptest

    Shiptest

    The Shiptest Codebase

    Shiptest is an open source fork of Space Station 13 that replaces the traditional single-station gameplay with multiple player-controlled ships. Instead of being confined to one station, players can design, operate, and explore with their own ships in a shared space environment. The repository contains full source code, assets, and maps to host or develop servers. Shiptest introduces new mechanics around ship construction, navigation, and resource management, creating a sandbox that emphasizes exploration and collaboration. Its modular design allows for diverse playstyles, from engineering and trade to combat and survival. The project is actively updated by its community, pushing SS13 gameplay in a fresh, experimental direction.
    Downloads: 6 This Week
    Last Update:
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