boardgameio/boardgame.io

boardgameio/boardgame.io has 12,484 GitHub stars and 835 forks. GitHot measured -1 stars in 24 hours. Last checked 2026-11-07 02:04 UTC. Last push 2026-10-30.

How these counts are measured

State Management and Multiplayer Networking for Turn-Based Games

12,484 stars 835 forks

What you can do

State Management: Game state is managed seamlessly across clients, server and storage automatically.
Multiplayer: Game state is kept in sync in realtime and across platforms.
AI: Automatically generated bots that can play your game.
Game Phases: with different game rules and turn orders per phase.

Measured star growth

in 24h: -1
in 7 days: Collecting history
in 15 days: Collecting history
in 1 month: Collecting history

Net star changes over overlapping periods, not daily totals. Missing measurements are left blank. Stars measure attention, not software quality.

README.md

Original

Read the Documentation

boardgame.io is an engine for creating turn-based games using JavaScript.

Write simple functions that describe how the game state changes when a particular move is made. This is automatically converted into a playable game complete with online multiplayer features, all without requiring you to write a single line of networking or storage code.

Features

State Management: Game state is managed seamlessly across clients, server and storage automatically.
Multiplayer: Game state is kept in sync in realtime and across platforms.
AI: Automatically generated bots that can play your game.
Game Phases: with different game rules and turn orders per phase.
Lobby: Player matchmaking and game creation.
Prototyping: Interface to simulate moves even before you render the game.
Extendable: Plugin system that allows creating new abstractions.
View-layer Agnostic: Use the vanilla JS client or the bindings for React / React Native.
Logs: Game logs with the ability to time travel (viewing the board at an earlier state).

Usage

Installation

npm install boardgame.io

Documentation

Read our Full Documentation to learn how to use boardgame.io, and join the community on gitter to ask your questions!

Running examples in this repository

npm install
npm start

The examples can be found in the examples folder.

Using VS Code?

This repository is ready to run in a dev container in VS Code. See the contributing guidelines for details.

Changelog

See changelog.

Get involved

We welcome contributions of all kinds! Please take a moment to review our Code of Conduct.

🐛 Found a bug?
Let us know by creating an issue.

❓ Have a question?
Our Gitter channel and GitHub Discussions are good places to start.

⚙️ Interested in fixing a bug or adding a feature?
Check out the contributing guidelines and the project roadmap.

📖 Can we improve our documentation?
Pull requests even for small changes can be helpful. Each page in the docs can be edited by clicking the “Edit on GitHub” link at the top right.

License

MIT