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0.24.0 • Public • Published

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Full Documentation: link

The goal of this framework is to allow a game author to essentially translate the rules of a game into a series of simple functions that describe how the game state changes when a particular move is made, and the framework takes care of the rest. You will not need to write any networking or backend code.


  • State Management: Game state is managed seamlessly across clients, server and storage automatically.
  • Cross-platform Multiplayer: All clients (Web / Android / iOS) connected to the game are synced in real time.
  • AI Framework: Create bots that are highly customizable and debuggable.
  • Game Phases: with different game rules (including custom turn orders) per phase.
  • Secret State: Secret information (like the opponent's cards) can be hidden from the client.
  • Prototyping: Debugging interface to simulate moves even before you render the game.
  • Logs: Game logs with the ability to time travel (viewing the board at an earlier state).
  • UI Agnostic: Client API for React, React Native or plain JS.
  • Component Toolkit: Components for hex grids, cards, tokens.



$ npm install --save

Running examples in this repository

$ npm install
$ npm run examples


See changelog.


See the contributing guidelines. Also take a look at the roadmap to find things that you could contribute to.


This is not an official Google product. It's a Googler's hobby project that's supported by contributions from the community.


npm i [email protected]





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