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.

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  • 1
    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: 4 This Week
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  • 2
    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: 4 This Week
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  • 3
    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: 4 This Week
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  • 4
    Claude of Duty

    Claude of Duty

    A Call of Duty-quality FPS in Three.js, built from a single prompt

    Claude of Duty is a browser-based first-person shooter built with Three.js and WebGL2 by an orchestrated fleet of AI coding agents. The project contains roughly 55,000 lines divided across 11 coordinated gameplay and rendering subsystems. It uses no conventional art or audio assets because textures, meshes, animations, weapons, effects, environments, and sounds are generated procedurally from code at runtime. Its systems cover advanced rendering, custom physics, movement, ballistics, enemy AI, spatial audio, and a full combat HUD. The playable market environment includes enterable interiors, instanced props, atmospheric effects, intense combat feedback, and modern shooter controls. The repository also includes deterministic screenshot testing, image-difference checks, profiling, scripted playtests, and an architecture contract used to coordinate the agents.
    Downloads: 4 This Week
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  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

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  • 5
    LayaAir3.0

    LayaAir3.0

    LayaAir is an open-source 2D/3D engine

    The LayaAir engine is a game engine brand under Layabox . The LayaAir engine not only supports 2D, 3D, AR, VR and other types of game development but also can be used in advertising, marketing, education and other fields. In addition to the release of the HTML5 version, it also supports the release of Native-APP, WeChat mini-games, QQ mini-games, Baidu mini-games, Bilibili mini-games, Douyin mini-games, Toutiao mini-games, Alipay mini-games, OPPO mini-games, and vivo mini-games. Games, Xiaomi Quick Games, Huawei Quick Games, and other platforms.
    Downloads: 4 This Week
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  • 6
    FSKneeboard

    FSKneeboard

    FSKneeboard adds a helpful ingame panel to your flight simulator

    FSKneeboard (formerly known as "VFR Map For VR") adds a helpful in-game panel to your flight simulator which brings several different maps, waypoints and tracks, a charts viewer, and a notepad right into your Flight Simulator cockpit! This is is especially helpful for those of us who like to fly in VR. Powerful, highly detailed maps for your next VFR trip. Optimized for VR! Your approach charts, checklists, and notes at your fingertips. Use your mouse to quickly take notes of ATIS and ATC instructions. Automatically create snapshots/savegames from your flights every few minutes so you're able to recover Flight Simulator instabilities and crashes (fully configurable, see Advanced Usage Section for details). Search for any address or POI worldwide right from FSKneeboard and add it as waypoint or even teleport there. Windows Installer for simple installation and configuration.
    Downloads: 3 This Week
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  • 7
    Hypackel Engine

    Hypackel Engine

    JavaScript-based game engine designed to empower developers

    Hypackel Engine is a JavaScript-based 2D game engine designed to provide beginner-friendly tools for creating simple games such as platformers, RPGs, and top-down shooters. It focuses on accessibility by offering a lightweight and easy-to-integrate script that developers can import directly into web-based projects. The engine includes built-in systems for handling physics, collisions, rendering, and animation, allowing developers to focus more on gameplay logic rather than low-level implementation details. Its architecture is structured around modular systems like sprites, particles, and audio, which can be controlled through simple function calls and arrays. The project emphasizes simplicity and rapid prototyping, making it suitable for educational purposes or small-scale game development. It also includes example files and documentation to guide users through setup and usage. Overall, HYPACKEL-ENGINE-1 serves as an entry-level framework for experimenting with game development.
    Downloads: 3 This Week
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  • 8
    LittleJS

    LittleJS

    The Tiny JavaScript Game Engine That Can!

    LittleJS is a super lightweight 2D JavaScript game engine with fast WebGL rendering. It is designed to be small, simple, and easy to use for various applications, from game jams to commercial releases. This engine has everything necessary to make high-quality games, including fast rendering, physics, particles, sound effects, music, keyboard/mouse/gamepad input handling, update/render loop, and debug tools. It is recommended that you start by copying the LittleJS Starter Project This file is mostly empty with just a few things you can use to get started or remove. You can also download and include engine.all.js or engine.all.min.js. In order to load files like images you will need to run a small web server like http-server on npm. I recommend an editor that does this for me automatically like Brackets or VS Code with the Live Server plugin.
    Downloads: 3 This Week
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  • 9
    The Game Center

    The Game Center

    The Game Center offers unblocked games

    The Game Center offers unblocked games which does not require an administrator or really anything to run, and that are adjusted for lower-end computers or laptops. Things such as Grand Theft Auto, Minecraft, or many types of web game applications are completely free to download!
    Downloads: 3 This Week
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  • 10
    minecraft protocol

    minecraft protocol

    Parse and serialize minecraft packets, plus authentication

    Parse and serialize Minecraft packets, plus authentication and encryption.
    Downloads: 3 This Week
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  • 11
    REMLAB Web Mech Designer

    REMLAB Web Mech Designer

    A web-based Battletech Mech designer

    REMLAB is a fully functional cross-platform web-based Battlemech designer for the tactical board game Battletech. REMLAB is built entirely on HTML, PHP, and JavaScript with Ajax functionality.
    Downloads: 44 This Week
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  • 12
    QuickPlay

    QuickPlay

    Retro-Gaming Multi-Emulator Frontend. Frontend-of-Frontends

    Welcome to the QuickPlay homepage. QuickPlay - MAME Edition is a powerful Windows universal emulator frontend, which has support for countless emulators, systems, game sets and other emulation frontend projects. Its main focus is on being user friendly, simple to set up, yet thorough: its a combined searchable library for all of your retro-gaming...It has a novel Emulator Finder system that takes the hassle out of initial setup and ongoing maintainance
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    Downloads: 17 This Week
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  • 13
    Egret Engine

    Egret Engine

    Egret is a brand new open mobile game and application engine

    The Egret Engine is a HTML5 game engine. It provides modules to handle common game development tasks such as 2D and 3D rendering, GUI systems, and audio and resource management. The Egret engine is flexible and suitable for 2D or 3D projects. It allows developers to work without worrying about low-level browser implementation, HTML5 performance, or fragmentation issues. Egret projects are developed using TypeScript, which is a superset of JavaScript. Please refer to the TypeScript manual for more information. The Egret API and ActionScript3 (AS3) are very similar. It will be easy to get started with Egret if you are familiar with AS3. By default, the entry point for Egret game projects is src / Main.ts.
    Downloads: 2 This Week
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  • 14
    TauCeti Classic

    TauCeti Classic

    Frankenstein lived

    TauCetiClassic is an open source fork of Space Station 13 maintained by the Tau Ceti Station community. It builds upon the original SS13 codebase, offering a distinct roleplay-focused experience with custom mechanics, sprites, and maps. The repository includes the full game source, assets, and build scripts necessary to host servers and contribute to development. TauCetiClassic emphasizes immersive roleplay scenarios, detailed station environments, and unique content compared to other SS13 forks. The project is actively developed, with ongoing updates from its community of players and coders. By extending SS13, it provides both a playable multiplayer environment and a collaborative platform for experimentation.
    Downloads: 2 This Week
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  • 15
    melonJS

    melonJS

    A fresh & lightweight javascript game engine

    melonJS is an open-source HTML5 game engine that empowers developers and designers to focus on content. The framework provides a collection of composable entities and support for a number of third-party tools. Giving you a powerful combination that can be used wholesale or piecemeal. melonJS is a lightweight yet powerful HTML5 framework designed from the ground up to provide a true plugin-free 'write-once, run-everywhere' gaming platform. melonJS is an open-source project and supported by a community of enthusiasts. See our Gallery for a few examples of games powered by melonJS. melonJS integrates the popular Tiled map format, allowing designers easily create levels using the Tiled map editor, and to focus on the game features itself. A fresh and lightweight 2D sprite-based engine. Fast WebGL renderer for desktop and mobile devices with fallback to Canvas rendering.
    Downloads: 2 This Week
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  • 16
    VGamepadWeb

    VGamepadWeb

    Turn your phone into a wireless Xbox controller via any web browser.

    VGamepadWeb is an open-source tool that turns your smartphone or tablet into a wireless Xbox controller for Windows PC using any web browser. No apps or cables required! How it works: Run the lightweight desktop server on your PC to get a local link. Open it on your phone to get a responsive virtual controller. The PC server captures touch inputs and translates them into native gamepad signals via the ViGEmBus driver. Windows sees your phone as a real Xbox 360 controller, making it instantly compatible with any game. Powered by WebRTC and WebSockets, it delivers ultra-low latency for a smooth gaming experience.
    Downloads: 45 This Week
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  • 17
    ClanSphere

    ClanSphere

    web cms for clans and esport related pages

    This project has grown in the past years and became the most advanced web cms for clan and esport related pages. It features modul management, template and language switching and so on. It supports a wide range of php versions and database drivers.
    Downloads: 25 This Week
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  • 18
    JS_CSS_Poker

    JS_CSS_Poker

    Free Texas Holdem Poker game using HTML5, CSS and JavaScript

    A free online Texas Hold'em poker game written in JavaScript and a web-gui using HTML5 and CSS, all source included Works as a solitaire, it is you against the robots No money - but you will not win that much either. No registration - I am just glad if you give some feedback if you find any problems. All source code included Totally bug free Climate positive Want to see it? https://js-css-poker.sourceforge.io/ Want to play it? https://js-css-poker.sourceforge.io/poker.html This is a merge of the Texas hold 'em game from https://sourceforge.net/projects/jsholdem/ and the js/CSS/HTML frontend from https://github.com/tansey/js_poker Compatibility: Any modern browser, such as Firefox, Chrome and Edge, on any OS, Windows, Linux, Mac works nilssonopel@users.sourceforge.net
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    Downloads: 13 This Week
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  • 19
    KoLmafia
    KoLmafia is a cross-platform desktop tool which interfaces with the online adventure game, Kingdom of Loathing. KoLmafia is written in Java ( Java 17 required), with binary releases in JAR format. We have moved to https://github.com/kolmafia/kolmafia, please come and find us there!
    Downloads: 6 This Week
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  • 20
    Tools for the recipe collector :-) RecipeFox: A addon to FireFox to grab recipes from the net (like the MasterCook addon in Internet Explorer) A recipe converter: It converts recipes from one format to another, and supports the following formats: - AccuC
    Downloads: 6 This Week
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  • 21
    NeonLauncher

    NeonLauncher

    A minimal Minecraft: Java Edition launcher.

    A minimal Minecraft: Java Edition launcher.
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    Downloads: 27 This Week
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  • 22
    CMSS13

    CMSS13

    Contains the code for CM-SS13

    cmss13 is an open source fork of Space Station 13 that adapts the game into a Colonial Marines-inspired setting. Developed and maintained by the cmss13 community, it emphasizes tactical combat, military roleplay, and survival against xenomorph threats. The repository includes the complete source code, sprites, maps, and configuration files needed to run servers or contribute to development. Compared to traditional SS13 forks, cmss13 introduces unique mechanics such as marine squads, advanced weaponry, and alien abilities, offering a combat-heavy multiplayer experience. The project thrives on active contributions from its community, ensuring continuous updates and balancing. It provides both a platform for immersive gameplay and an open development environment for fans of the SS13 ecosystem.
    Downloads: 1 This Week
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  • 23
    Clumsy Bird

    Clumsy Bird

    A MelonJS port of the famous Flappy Bird Game

    Clumsy Bird is an open-source HTML5 game inspired by the gameplay of Flappy Bird. It was built with the MelonJS game engine and runs directly inside a web browser. Players control an animated bird while avoiding vertically arranged obstacles and attempting to achieve a higher score. The project includes gameplay states for starting, active play, scoring, collisions, and game-over results. Developers can replace the background, bird animation, pipes, ground, logos, and interface graphics to create customized versions. A local development server can be launched with Node.js, npm, and Grunt. The repository was archived in 2019, so it now functions primarily as a customizable game example and learning resource.
    Downloads: 1 This Week
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  • 24
    Grid Garden

    Grid Garden

    A game for learning CSS grid layout

    Grid Garden is an interactive browser game for learning CSS Grid layout. It teaches Grid concepts by asking players to water carrots and avoid weeds using CSS grid properties. The game makes grid placement, sizing, and alignment feel concrete through visual levels instead of static documentation. Learners practice properties such as grid-column-start, grid-column-end, grid-row-start, grid-row-end, grid-template-columns, grid-template-rows, and order. The repository includes the web game source, assets, translation files, and localization guidance for contributors. Overall, it is a practical tutorial for anyone who wants to understand CSS Grid through short, playful, hands-on exercises.
    Downloads: 1 This Week
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  • 25
    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: 1 This Week
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