Open Source JavaScript Games
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JavaScript Games
View related business solutionsBrowse 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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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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Blooket Cheats
05k0nz's legacy is safe
Blooket-Cheats is a repository containing scripts and a small web interface for Blooket game modifications. It organizes cheat scripts by game mode and provides methods for loading them through bookmarklets, a GitHub Pages interface, or browser console execution. The repository includes folders for cheats, tutorials, auto-update logic, page styling, and front-end code. From a software perspective, it is a browser-script collection focused on manipulating a web game environment. However, using cheats can violate platform rules, undermine fair play, and create problems in classroom or competitive settings. It is best described neutrally as a JavaScript-based browser scripting repository rather than as a recommended gameplay tool. -
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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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Steamunlocked
Keep track of newly added games
Steamunlocked is an open-source repository associated with providing access to preconfigured downloadable game packages that can be installed and played without requiring traditional distribution platforms. It focuses on simplifying the process of acquiring and running games by offering ready-to-use versions that eliminate the need for complex installation steps or additional configuration. The repository itself typically serves as a hub for organizing links, tools, or resources related to these packaged games rather than hosting the files directly. It is designed to streamline user experience by reducing friction in accessing and launching games, particularly for users who prefer simplified workflows. The project often includes instructions, supporting tools, or references to external sources that host the actual game files. -
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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. -
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Google Snake Mod Loader
All Google Snake mods combined into one
Google Snake Mod Loader is an open-source browser-based modification framework that extends the classic Google Snake game by enabling custom mods, gameplay enhancements, and visual changes directly within the web version of the game. It works by injecting JavaScript into the Google Snake page, allowing users to dynamically alter game behavior without needing to download or modify the original source code. The loader provides a centralized system for managing multiple mods, making it easy to toggle features such as new mechanics, custom maps, altered physics, or additional UI elements. Designed for accessibility, it allows users to install and run mods through simple scripts or bookmarklets, lowering the barrier for non-technical players to customize their experience. Developers can also create and distribute their own mods using the loader’s structure, contributing to a growing ecosystem of community-created enhancements. -
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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. -
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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. -
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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. -
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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. -
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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. -
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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. -
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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. -
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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. -
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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. -
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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. -
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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. -
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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. -
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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. -
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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. -
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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. -
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Uptime Kuma
A fancy self-hosted monitoring tool
Uptime Kuma is an easy-to-use self-hosted monitoring tool. It is a temporary live demo, all data will be deleted after 10 minutes. Use the one that is closer to you, but I suggest that you should install and try it out for the best demo experience. Monitoring uptime for HTTP(s) / TCP / HTTP(s) Keyword / Ping / DNS Record / Push / Steam Game Server / Docker Containers. Notifications via Telegram, Discord, Gotify, Slack, Pushover, Email (SMTP), and 90+ notification services, click here for the full list. -
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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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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.