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Top 18 JavaScript Multiplayer Projects
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PokeMMO-Online-Realtime-Multiplayer-Game
🕹️ A simple realtime Pokémon MMO game build with Phaser 3, Colyseus.io & Webpack 4
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CommandAndConstruct
An open-development multiplayer real-time strategy (RTS) game project made in Construct.
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togetherness
A virtual and 🕊liberated🕊 tabletop. Make, play, and share your tabletop games with dice, cards, tokens, and more.
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visual-ts-game-engine
Typescript project based on matter.ts, used webpack, GamePlay based on canvas2D. Multiplayer real time for platformer gameplay. Video chat webRTC supported by kurento OV server signalling. RocketCraftingServer used for account session. Node.js for server part. Powerfull ! ®zlatnaspirala
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magic-three
Using power of Three.js and Ammo.js .Class oriented , script type module. No build no extra time spend needed. Networking with webRTC/Node.js signaling server. First person shooter Multiplayer solution
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SKALE-Physics
Immensely scalable 2D Arcade Physics Engine for massive simulation games (Dwarf Fortress, Rimworld, etc), (and multiplayer games) that need 100,000+ bodies.
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multiplayer-game
A multiplayer game. Created with Socket.io, Three.js, Node.js, Express, HTML5 and CSS3 (by MegaTKC)
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Jetpunk-together
This project allows anyone to host their own server, enabling them to solve quizzes together with friends on the Jetpunk.com website.
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tic-tac-turbo
Experience the next level of tic-tac-toe with our dynamic multiplayer game. Engage in intense matches, forge rivalries, and rise through the ranks. Sharpen your tactics, dominate the grid, and cement your status as the ultimate XOXO tactician!
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Or check out on GitHub: devfrend
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pong-wars-reloaded
A full multiplayer evolution of the original Pong Wars — the eternal battle between Day and Night, now with rackets, powerups, AI, rotation, and more.
Project mention: Show HN: I turned the Pong Wars simulation into a multiplayer game | news.ycombinator.com | 2026-04-07
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
JavaScript Multiplayer discussion
JavaScript Multiplayer related posts
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No-Code Game Development: Using AI to Build Your First Game
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An Interactive Intro to CRDTs
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Online multiplayer real-time sword fighting game
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Swordbattle.io, an online multiplayer sword fighting game, with leaderboards, skins and accounts!
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Backend architecture for multiplayer browser text game with a short gameloop?
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Show HN: Yboard is a multiplayer desktop-like workspace based on CRDT
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Great self-hostable multiplayer web games (like Massivedecks?)
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A note from our sponsor - SaaSHub
www.saashub.com | 15 Jun 2026
Index
What are some of the best open-source Multiplayer projects in JavaScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | GDevelop | 23,689 |
| 2 | rpc-websockets | 624 |
| 3 | reldens | 562 |
| 4 | PokeMMO-Online-Realtime-Multiplayer-Game | 325 |
| 5 | hyperfy | 293 |
| 6 | CommandAndConstruct | 88 |
| 7 | togetherness | 48 |
| 8 | pictionary | 36 |
| 9 | visual-ts-game-engine | 24 |
| 10 | magic-three | 13 |
| 11 | Krunker-Editor-Plus | 7 |
| 12 | landofmana | 6 |
| 13 | SKALE-Physics | 4 |
| 14 | multiplayer-game | 3 |
| 15 | Jetpunk-together | 2 |
| 16 | tic-tac-turbo | 0 |
| 17 | agentcafe | 0 |
| 18 | pong-wars-reloaded | 0 |
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