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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DLSS 5 Swapper
Install, tune and restore DLSS 5 in your games with one click
DLSS5 Swapper is a Windows application for installing, configuring, and restoring DLSS 5 Neural Rendering in compatible PC games and emulators. It scans libraries from Steam, Epic, GOG, Xbox folders, and manually added locations. Multiple installation routes support native DLSS titles, DLSS5-Feeder, OptiScaler, RenoDX, and multipass rendering. Automatic backups and installation history make it possible to restore original game files when necessary. An in-game overlay provides access to supported DLSS settings while a title is running. The application also includes graphics-API detection, search filters, diagnostics, emulator support, and community compatibility reports. Recent releases add live community discussions and GPU-specific compatibility filtering. -
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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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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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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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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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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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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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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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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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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. -
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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. -
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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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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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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. -
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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. -
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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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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. -
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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! -
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Flexbox Froggy
A game for learning CSS flexbox
Flexbox Froggy is an interactive browser game for learning CSS Flexbox. It teaches layout concepts by asking players to move frogs onto lily pads using real CSS properties. The game turns abstract alignment rules into visual challenges, making it easier for beginners to understand how Flexbox behaves. Players practice properties such as justify-content, align-items, flex-direction, order, align-self, flex-wrap, and align-content. The project is localized into many languages through community translations, which makes it accessible to a wide learning audience. Overall, it is a friendly educational tool for students, designers, and developers who want to learn Flexbox through practice instead of passive reading. -
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ChronoChime
Reliably notify people at the right time, based on the conditions they
ChronoChime is a calm, reliable temporal-notification desktop app. It remembers time on your behalf and notifies you at the moments you define — single reminders, recurring schedules, and composite routines — without becoming a task manager or productivity suite. -
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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. -
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VBR Dashboard
Simhub dashboard for simracing
This is a simhub dashboard with some screens that show important data to help simracers know the car status -
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Make AJAX/PHP avatar worlds on websites. Build visualized, real multi-user communities, fora and chat rooms. See your buddies wander around. From card games to virtual RPG worlds, DutchPIPE makes it possible. The future: interconnected DutchPIPE sites.
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Sleuth-remix
A murder mystery IF game remaking/remixing a DOS ASCII game.
This is a remake/remix of an old DOS game called "sleuth0". It is being remade bigger and better both as an Interactive Fiction game for DOS and a Visual Novel for HTML5. I'm also remaking some other DOS games as experiments... -
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2GB
a binary game
This game is based on the original version of 2048. Other versions are derivatives or fakes, and should be used with caution. Click below to play it online.
