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A cross-platform JS game engine inspired by React

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Declarative API

Replay works differently to traditional OOP game engines. Game logic and rendering is neatly separated using pure functions.

Open Source

Replay is free to use and developed in the open on GitHub.

Tooling

Build your game once using the latest frontend tools. Avoid bugs with a built-in testing library, then deploy to web, iOS and Android!

Replay is still in early development, but you can stay up to date on progress by subscribing here: