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.

  • Ship Agents Faster Icon
    Ship Agents Faster

    Transform your applications and workflows into powerful agentic systems at global scale.

    Gemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
    Start Free
  • Build Data Resilience - Take the Assessment Today Icon
    Build Data Resilience - Take the Assessment Today

    Can you recover when it matters most? Take this quick assessment to identify gaps and build greater recovery confidence.

    Is your recovery strategy as strong as you think? Take this quick self-assessment to check your recovery readiness and gain tailored insights. In only 2 minutes, you'll learn where you fall on the recovery readiness scale.
    Take the Assessment
  • 1
    Reldens - MMORPG Platform

    Reldens - MMORPG Platform

    You can make it - Open Source MMORPG Platform

    Welcome to Reldens, a platform designed to empower developers in creating multiplayer games. With a wide array of features, Reldens enables developers to craft a rich gaming experience without grappling with the complexities usually associated with making a multiplayer game secure and efficient over any network. Built with popular development tools such as NodeJS, Parcel, Colyseus, Phaser, and Firebase, integrated with various database engines, and following robust development practices, the platform ensures security, ease of use, and high customization for developers. While the current stage of the platform is tailored for developers, ongoing improvements to the administration panel aim to make game creation accessible to non-developers in the future.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 2
    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: 1 This Week
    Last Update:
    See Project
  • 3
    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: 1 This Week
    Last Update:
    See Project
  • 4
    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
    Last Update:
    See Project
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • 5
    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: 14 This Week
    Last Update:
    See Project
  • 6
    WebChess
    A PHP Web Application that you can install on your own web server. It allows you to play chess with other users across the internet or sitting at the same screen. It only permits valid moves and can automatically detect check and checkmate status.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 7
    Scrolling Game Development Kit 2
    All-in-one program for creating 2D scrolling games. Compile your games into stand-alone .NET executables or customizable C# source code. The IDE and framework are build on OpenTK, which wraps OpenGL, so generated games can be cross-platform.
    Leader badge
    Downloads: 5 This Week
    Last Update:
    See Project
  • 8
    php strategy game engine
    PhpSgeX 3 IS COMING! This is an engine for creating a php browser game, like ikariam, travian and ogame. Whit mysql database!!! You can create your own strategy game without knowing PHP and MySql! PhpSgeX has different templates, translations and plugins! It's 100% customizable!
    Leader badge
    Downloads: 4 This Week
    Last Update:
    See Project
  • 9
    A cross-platform, user-modifiable three-dimensional space trading and combat game.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 99.99% Uptime for MySQL and PostgreSQL Databases Icon
    99.99% Uptime for MySQL and PostgreSQL Databases

    Sub-second maintenance. 2x read/write performance. Built-in vector search for AI apps.

    Cloud SQL Enterprise Plus delivers near-zero downtime with 35 days of point-in-time recovery. Supports MySQL, PostgreSQL, and SQL Server.
    Start Free
  • 10
    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
    Leader badge
    Downloads: 7 This Week
    Last Update:
    See Project
  • 11
    QMC2 is a Qt based multi-platform GUI front end for MAME NOTE: A new version is hosted and developed at https://github.com/qmc2/qmc2-mame-fe
    Downloads: 15 This Week
    Last Update:
    See Project
  • 12
    An HTML5 chess game written in Javascript.
    Leader badge
    Downloads: 8 This Week
    Last Update:
    See Project
  • 13
    British Bingo

    British Bingo

    90-ball bingo with sound

    Play by yourself in a web browser like Chrome or Safari. The game simulates the other players. Runs best on a desktop computer or laptop. Also tries to adapt to an iPad or tablet. Players can make mistakes and can leave and join. You can cheat and get the game to correctly mark your board. There is no limit to the number of players (try 300,000). You can adjust the speed of the game and most sizes. The game can play for you. You can hear the caller reading out the numbers and the players talking (easiest with the online game at https://bbingo.xyz.)
    Downloads: 4 This Week
    Last Update:
    See Project
  • 14
    World of Phaos is a browser based RPG written in PHP.
    Downloads: 14 This Week
    Last Update:
    See Project
  • 15
    Firefox Extension for the MMOG Travian to show additional informations and easyer navigation.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 16

    The Alchemist's Puzzle

    A Sigmar's Garden-Style Solitaire Game

    The Alchemist's Puzzle A Sigmar's Garden-Style Solitaire Game Sigmar's Garden is a logic puzzle game where your goal is to clear a board by pairing marbles according to a set of alchemical reaction rules. Success requires planning ahead, managing limited resources, and carefully unlocking the metals in the correct sequence. While the rules are simple to learn, finding a complete solution can be surprisingly challenging. Play the game now, directly in your web browser: https://the-alchemists-puzzle.sourceforge.io/ The game is written entirely in JavaScript and runs locally in your web browser. No installation or registration is required. Your solutions are stored locally on your computer.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 17
    WOW Raid Manager, an online, web-based Raid and Group management system for the online MMORPG Game World of Warcraft. The original system came from the phpRaid software.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 18
    Way Of The Warrior is a web boardgame of fantasy battle. As a boardgame is turn based and at last 2 player are neeed, but there is no limit. The game is fully customizable, from the unit to the board tile all in an easy way.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 19
    HTLiveSight

    HTLiveSight

    HTLS is an Hattrick live match viewer, based on the old Livefox.

    With HTLiveSight, you can view your matches in a new way: you have explanations near the actions, live league table, popups and sound to advise you that something is happening in matches, even if you're doing other things on your pc! You can also add friends, so their matches are automatically added when you launch the program! Now we added the Relive feature, so you can watch your matches even if you're not at home when they're played! This application is a browser plugin and doesn't need any installation: the only requirement is have Mozilla Firefox and Google Chrome (soon Opera, Safari and mobile browsers) installed! So it's compatible with all the operating systems! And there are a lot of new things in development...check out the forum!
    Downloads: 2 This Week
    Last Update:
    See Project
  • 20
    Scorched Earth Online War

    Scorched Earth Online War

    Online War system for IL-2 Sturmovik and Iron Front in ArmA 2

    SEOW is a dynamic multiplayer campaign system for running on-line wars using the IL-2 combat simulator together with Iron Front in ArmA 2. SEOW is a free add-on for IL-2 and Iron Front in ArmA 2 released under the GNU Public Licence. For an install of SEOW, you need the MP, the DB and the DCS, 3 downloads in total. Check out the Files tab above for direct downloads.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 21
    BlackNova Traders
    BlackNova Traders is a web-based, multi-player space exploration game inspired by the popular BBS game of TradeWars. It is coded using PHP, SQL, and Javascript.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 22
    wsnow

    wsnow

    Let it snow in your browser

    Wsnow creates a Christmas-conform background in your browser. So wsnow is not restricted to Linux, but will run in every decent browser: Filerfox, Explorer, Edge, Safari, etc. Linux user? Have a look at https://sourceforge.net/projects/xsnow .
    Downloads: 9 This Week
    Last Update:
    See Project
  • 23
    Hugin is a web-based mini-map for tabletop roleplaying games.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 24
    A web-based LanParty administration tool - lanparty internet/intranetsystem <br> #[Features] Online-registration, Seatplan, Tournament-management, Catering system, Board, Messenger, Poll, News, FAQ, Pic-gallery, FTP-webinterface, Troubletickets and much
    Downloads: 5 This Week
    Last Update:
    See Project
  • 25
    UnityMol

    UnityMol

    Molecular viewer and prototyping framework

    !!! New website is https://unity.mol3d.tech and new releases/source code are now on Github : https://github.com/LBT-CNRS/UnityMol-Releases !!!! Implementation of a visualization prototype for molecular structures and networks using the Unity3D game engine. Implementation of numerous graphical methods as spheres, particle systems, bond, etc.. as well as our recent HyperBalls methodology (see: www.hyperballs.sf.net).
    Leader badge
    Downloads: 5 This Week
    Last Update:
    See Project