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.

  • The AI workplace management platform Icon
    The AI workplace management platform

    Plan smart spaces, connect teams, manage assets, and get insights with the leading AI-powered operating system for the built world.

    By combining AI workflows, predictive intelligence, and automated insights, OfficeSpace gives leaders a complete view of how their spaces are used and how people work. Facilities, IT, HR, and Real Estate teams use OfficeSpace to optimize space utilization, enhance employee experience, and reduce portfolio costs with precision.
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  • Rezku Point of Sale Icon
    Rezku Point of Sale

    Designed for Real-World Restaurant Operations

    Rezku is an all-inclusive ordering platform and management solution for all types of restaurant and bar concepts. You can now get a fully custom branded downloadable smartphone ordering app for your restaurant exclusively from Rezku.
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  • 1
    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: 6 This Week
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  • 2
    particles.js

    particles.js

    A lightweight JavaScript library for creating particles

    particles.js is a very lightweight JavaScript library that can be used to create particles, in a simulated environment where particles float and move across the screen. Build a JavaScript library and customize your particles in an easy to use and easy to build simulation.
    Downloads: 6 This Week
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  • 3
    Ct.js

    Ct.js

    Ct.js is a desktop game engine that makes learning programming fun

    ct.js makes learning programming fun and game development easy by its visual tools, good docs and flexible, modular library. It is free, open-source, and is loved by hobbyists, professionals, teachers, and their students. Bad tools hinder your performance. Ct.js is designed to be like a brush with which you create games, not to be an enemy you will fight with. ct.js bundles come with offline docs, tutorials, and editable examples and demos. The code editor highlights errors and provides documentation right while writing your code. ct.js is based on Pixi.js, works on WebGL and provides great performance in browsers and desktop environments. Modules add new powers, and when ct.js is not enough, you can add any JS code or library. A small stylized adventure with AI-powered sea battles, violent environment, and little puzzle sections. Join the voyage to save a colony from a deadly disease!
    Downloads: 5 This Week
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  • 4
    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: 5 This Week
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  • Next-Gen Encryption for Post-Quantum Security | CLEAR by Quantum Knight Icon
    Next-Gen Encryption for Post-Quantum Security | CLEAR by Quantum Knight

    Lock Down Any Resource, Anywhere, Anytime

    CLEAR by Quantum Knight is a FIPS-140-3 validated encryption SDK engineered for enterprises requiring top-tier security. Offering robust post-quantum cryptography, CLEAR secures files, streaming media, databases, and networks with ease across over 30 modern platforms. Its compact design, smaller than a single smartphone image, ensures maximum efficiency and low energy consumption.
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  • 5
    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
    Downloads: 33 This Week
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  • 6
    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: 116 This Week
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  • 7
    Blocker

    Blocker

    Multiplayer online game using Phaser + WebSocket (Socket.IO)

    Blocker is a work-in-progress multiplayer online game developed using Phaser and WebSocket (Socket.IO). It features real-time player interactions in a 2D environment, allowing users to control characters using mouse or keyboard inputs.
    Downloads: 4 This Week
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  • 8
    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: 4 This Week
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  • 9
    minecraft protocol

    minecraft protocol

    Parse and serialize minecraft packets, plus authentication

    Parse and serialize Minecraft packets, plus authentication and encryption.
    Downloads: 4 This Week
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  • Premier Construction Software Icon
    Premier Construction Software

    Premier is a global leader in financial construction ERP software.

    Rated #1 Construction Accounting Software by Forbes Advisor in 2022 & 2023. Our modern SAAS solution is designed to meet the needs of General Contractors, Developers/Owners, Homebuilders & Specialty Contractors.
    Learn More
  • 10
    vgstation13

    vgstation13

    Multiplayer space station roleplaying game built on BYOND engine

    vgstation13 is an open-source multiplayer roleplaying game set on a space station, where players assume different roles such as engineers, doctors, security officers, or even traitors. The game is built using the BYOND engine and emphasizes emergent gameplay, teamwork, chaos, and storytelling. It is a fork of the original Space Station 13 and continues to be developed by a vibrant community focused on balance, new content, and performance improvements.
    Downloads: 4 This Week
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  • 11
    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: 3 This Week
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  • 12
    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: 2 This Week
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  • 13
    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: 2 This Week
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  • 14
    TerraGov Marine Corps

    TerraGov Marine Corps

    TGMC: TerraGov Marine Corps, a SS13 mod

    TerraGov Marine Corps (TGMC) is an open source multiplayer game built on the BYOND engine, forked from the Space Station 13 (SS13) codebase. It is a tactical, role-playing game that pits groups of human marines against alien forces in large-scale, cooperative and competitive scenarios. The project focuses heavily on teamwork, coordination, and immersive gameplay, providing players with different roles such as engineers, medics, or combat marines to ensure strategic variety. TGMC offers a persistent, evolving experience where community contributions shape mechanics, balance, and lore. The codebase serves as both a live game server foundation and a development platform for contributors who want to expand gameplay features, design new mechanics, or refine existing systems. With its mixture of roleplay, tactical combat, and science fiction setting, TGMC provides a distinctive twist on the SS13 lineage.
    Downloads: 2 This Week
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  • 15
    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: 2 This Week
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  • 16
    Live Game Server List (LGSL)

    Live Game Server List (LGSL)

    LGSL (Live Game for PHP 5.4-8+: online status for various gameservers

    LGSL (Live Game Server List) for PHP 5.4-8.3+: online status for Discord, FiveM, Rust, CS, SA:MP, GMOD, Minecraft, Source Query, etc.
    Downloads: 24 This Week
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  • 17
    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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  • 18
    ZED Online

    ZED Online

    An online multiplayer real time strategy game

    A remake of the 1996 classic game Z. The project is currently in the early stages. More updates will come in the following weeks. Please visit zzone.lewe.com for more. ZED Online world rankings: https://zedonline.sourceforge.io/highscore.php See the wiki for more information: https://sourceforge.net/p/zedonline/wiki/Home/ Information on the different control styles can be found here: https://sourceforge.net/p/zedonline/wiki/controls/ Demo videos: https://www.youtube.com/watch?v=RKmKpTe-gVo https://www.youtube.com/watch?v=OnAJTml5znY https://www.youtube.com/watch?v=3UZSFsY6sSA https://www.youtube.com/watch?v=SFmoCg_F22w Online Multiplayer - Port forwarding In order to connect online the player who creates the game needs to enable port forwarding on their network router/NAT. The game will use port 8000 TCP. If the game can not bind the server to port 8000 it will try the next port until 8009. We recommend to forward all ports 8000-8009 TCP
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    Downloads: 12 This Week
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  • 19
    FakeNES GT
    FakeNES is a highly portable, Open Source NES and Famicom emulator. It runs on all modern operating systems and has an actively maintained DOS port for enthusiasts. Support for phones and other mobile platforms is under development. The majority of the project is entirely original code released under the zlib/libpng license. Contributed and third-party code is included under GNU licenses.
    Downloads: 15 This Week
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  • 20
    Apollo Station

    Apollo Station

    The best code this side of the galaxy

    ApolloStation is a community-driven SS13-derived codebase aiming to evolve the genre. Though specifics are sparse in the repo itself, it builds on SS13 principles with an emphasis on modularity and maintainability.
    Downloads: 1 This Week
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  • 21
    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: 1 This Week
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  • 22
    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: 1 This Week
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  • 23
    NSV13

    NSV13

    NSV13, a Ship-to-ship Combat SS13 Server

    NSV13 is a standalone fork/mod of Space Station 13, themed around ship-to-ship combat. Set aboard warships, it allows players to perform roles such as captain, gunner, pilot and crew. It requires compilation via DreamMaker or custom build tools (Windows batch or Unix scripts). The game emphasizes teamwork, wartime strategy, and immersive multiplayer gameplay.
    Downloads: 1 This Week
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  • 24
    webmc

    webmc

    PoC Minecraft client written in Javascript

    WebMC is an experimental proof-of-concept Minecraft client written in JavaScript that runs directly inside a web browser. Instead of requiring a traditional desktop installation of the game, WebMC allows users to connect to Minecraft servers from a browser environment. The client communicates with a WebSocket proxy that bridges the browser connection with the standard Minecraft server protocol. By leveraging browser technologies and modern JavaScript libraries, the project demonstrates how a voxel-based game client can run using web-based graphics and networking systems. WebMC also showcases how browser-based applications can interact with multiplayer game servers using real-time communication channels. The project is primarily intended as a technical experiment and educational demonstration of browser-based game development.
    Downloads: 1 This Week
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  • 25
    pgn4web

    pgn4web

    javascript chess games viewer for websites, blogs and live broadcasts

    pgn4web is a javascript chess games viewer for websites, blogs and live broadcasts. "pgn4web has a clean design, and is easily integrated and configured in wordpress. And yet, below that layer of simplicity, it has enough bells and whistles to allow for more baroque needs and taste. A truly great plugin." GM Tiger Hillarp, using the pgn4web plugin for wordpress on his site chess at the bag of cats, May 2013. "We wanted a live viewer that could work on tablets and mobile phones. pgn4web did fit very well on every platform, is stable and matched our visual design. Also the horizontal view for the commentators and the vertical view for smartphones was a real plus." H.S. from the Max Euwe memorial tournament committee, using pgn4web for live broadcast and game reports, November 2011.
    Downloads: 6 This Week
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