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.

  • 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.
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  • $300 Free Credits to Build on Google Cloud Icon
    $300 Free Credits to Build on Google Cloud

    New customers can spin up VMs, build with AI, and query data at no cost.

    Put your $300 in credit toward real workloads, then keep building with free monthly usage for 20+ products. No commitment and no charge until you upgrade.
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  • 1
    Maze War SVG

    Maze War SVG

    The famous Maze War game recreated as a modern web application.

    Maze War SVG is a web-based recreation of the Maze War game written for the Macintosh, circa 1987. That, in turn, was inspired by the first Maze War game, which was created in 1973 by Steve Colley, Howard Palmer and Greg Thompson.
    5.0 out of 5 stars 1 Review
    Downloads: 6 This Week
    Last Update:
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  • 2
    Shoddy Battle (later known as Pokémon Lab) is a Pokémon simulator created by Cathy and bearzly and first released in July 2007. It allows users to play Pokémon matches against other people online. Shoddy Battle was highly influential on the game of competitive Pokémon because it was free and open source, scalable (700,000 battles per month during its peak), user customisable and extensible, and it provided unprecedented statistical data on player skill and Pokémon usage trends. Visit the web site for more information.
    Downloads: 7 This Week
    Last Update:
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  • 3
    MOAGG is a 2D gravity game, combining the idea and fun of several existing games, such as Space Taxi (C64) and Gravity Force (Amiga).
    Downloads: 6 This Week
    Last Update:
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  • 4
    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!
    4.9 out of 5 stars 32 Reviews
    Downloads: 1 This Week
    Last Update:
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  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
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  • 5
    X-Core

    X-Core

    The original Xivio.com World Server Core

    Xivio.com was a commercial children's virtual world website created in 2006 by Gavin Conrad. This is the legacy World Server Java Core made available to the world to do with as it wishes.
    5.0 out of 5 stars 1 Review
    Downloads: 3 This Week
    Last Update:
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  • 6
    Hale

    Hale

    An RPG with turn based combat

    Hale is a turn based RPG with deep tactical combat and character customization. Included is a lengthy and varied campaign with many quests, items and monsters, visiting a variety of locales. The entire system is built to be moddable from the ground up.
    3.7 out of 5 stars 9 Reviews
    Downloads: 2 This Week
    Last Update:
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  • 7
    Sensa

    Sensa

    Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..

    Sensa is not an operating system, is a work environment compatible with Android © 4.4.4, Firefox OS ©, Linux Ubuntu 12.12 ©, MacOS Classic 7 ©, MS -DOS © operating systems, and Microsoft Windows 8.1 ©; whose distribution is free, and with source code available under GNU GPL 2.0 license .
    Downloads: 5 This Week
    Last Update:
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  • 8
    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
    4.7 out of 5 stars 6 Reviews
    Downloads: 1 This Week
    Last Update:
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  • 9
    winebox

    winebox

    Run Windows applications on any computer.

    WineBOX is an Open Source implementation of the Windows API and a program loader, allowing many unmodified Windows binaries to run on x86-based computers with out need a operative system.
    Downloads: 4 This Week
    Last Update:
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  • Host LLMs in Production With On-Demand GPUs Icon
    Host LLMs in Production With On-Demand GPUs

    NVIDIA L4 GPUs. 5-second cold starts. Scale to zero when idle.

    Deploy your model, get an endpoint, pay only for compute time. No GPU provisioning or infrastructure management required.
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  • 10
    The fortbattle player replays a fortbattle of the browser game "The West" (http://www.the-west.net). It displays the battle like the ingame flash player, but you can control the speed, skip rounds and see some statistics. Ingame use req. GreaseMonk
    5.0 out of 5 stars 2 Reviews
    Downloads: 1 This Week
    Last Update:
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  • 11
    The name of this project is not a joke, but the name of a massively multiplayer online game playing in the time of the homo errectus. The entire game is easily customizable via XML to satisfy your
    Leader badge
    Downloads: 2 This Week
    Last Update:
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  • 12
    Dark Destiny
    Dark Destiny is a turn-based online space strategy game playable in internet browsers. The game tries to draw the players attention to long-term strategic decisions and extensive diplomacy.
    5.0 out of 5 stars 1 Review
    Downloads: 1 This Week
    Last Update:
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  • 13
    Escape Route is a puzzle/strategy type game, in which you must escape from the enemys, and win a level.
    Downloads: 1 This Week
    Last Update:
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  • 14
    FreeDip is a strategic, multi-player, board game written in Java and JSP
    Downloads: 1 This Week
    Last Update:
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  • 15
    12 Ways to Die on an Asteroid is a science-fiction/murder mystery adventure game. The engine is built in Java and designed to be modular. Included is a set of game-development tools, which enable anyone who knows JavaScript to make an adventure game.
    Downloads: 0 This Week
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  • 16
    Alcibiade Chess

    Alcibiade Chess

    Next generation web chess club

    From the creator of MKGI Chess Club comes this next generation chess club. Completely re-written from scratch on the latest software frameworks, it features: social networks connection, scalable data storage, stunning graphics and much more to come. This project has two parts: - A Java Chess library containing board models, rules and PGN format management - A complete Chess web application based on the core Java library
    Downloads: 0 This Week
    Last Update:
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  • 17

    Aliza Gaming API

    An extensible development framework for roleplay games.

    AlizaGameAPI is a robust, open-source Java-based framework designed to streamline and enhance the development of 2D and 3D games. It offers a comprehensive set of tools, utilities, and libraries, empowering developers to create immersive and dynamic gaming experiences with ease. Key Features: Modular Architecture, Rich Graphics and UI Components, Comprehensive Game Logic and Character Management, Environment and World-Building Tools, Statistical and Mathematical Utilities, Enhanced Debugging and Logging, Data Management and Integration, Integrated LLM for NPC Dialog, Cross-Platform Compatibility Dive into the world of game development with AlizaGameAPI. Download the latest version, explore the detailed documentation, and join the community of developers pushing the boundaries of gaming technology.
    Downloads: 0 This Week
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  • 18
    Real-time space based strategy game utilizing both economic and military strategies.
    Downloads: 0 This Week
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  • 19
    Astro-Online - Widget Based Astrology
    Astro-Online is a web (now widget) based astrology program that can be downloaded and installed on any web server. Widgets (horoscopes) can also be shared through a share button on websites and personal pages (no installation necessary).
    Downloads: 0 This Week
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  • 20
    AtreyuMS is a server emulator which replicates the functionality of a MapleStory server. The emulator is cross-platform compatible since it is coded in Java.
    Downloads: 0 This Week
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  • 21
    Online Strategy-RPG. No map adventures. Just duels. Fight with team of your heroes NPCs or another players to gain new abilities, spells and items. The game is inspired by Disciples and Heroes of Might & Magic series. See http://btrgame.com
    Downloads: 0 This Week
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  • 22

    Bengine

    Free strategy browsergame engine.

    Galactic strategy Open Source browsergame. Replacement of the former game Net-Assault.
    Downloads: 0 This Week
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  • 23
    A small web application (Java ServerPages, MySQL) enabling users to enter tipps into a league based betsystem.
    Downloads: 0 This Week
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  • 24
    This is our Bleach game. We have a fairly large team of developers so have made our code SVN!
    Downloads: 0 This Week
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  • 25

    C-Lesh and SMW Engine

    C-Lesh is a game programming language for 2D games.

    C-Lesh is a game programming language for 2D games - mainly arcade and platform games. When combined with the Super Mario World (SMW) engine you can create awesome 2D platform games like Super Mario World. This language evolved from a "clone" of TI-BASIC which I began developing when I was having memory (segmentation fault) bugs with C. C-Lesh lacks memory allocation and destruction. There is no need to use pointers and you can never get memory leaks or program crashes caused by memory leaks. As C-Lesh is somewhat primitive you may like it if you are into C. I'd say its a step up from C for 2D games. Everything is set - all you need is a sprite sheet and some programming knowledge.
    Downloads: 0 This Week
    Last Update:
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