React components and a bidirectional message-passing bridge for embedding Defold game engine builds in web applications.
Defold’s HTML5 export can run in a browser, but wiring it into a React application — handling the canvas lifecycle, loading the dmloader script, and getting data flowing in both directions — is more work than it should be. React Defold wraps all of that into a set of composable components.
The DefoldApp component handles canvas creation, dmloader initialization, and application instantiation from a single JSX element. Drop it anywhere in your React tree with a root path, an app name, and dimensions, and the game loads. The companion DefoldAppContextProvider and useDefoldAppContext hook layer in a message queue for bidirectional communication: React can send commands to Defold, Defold can send events back, and both sides stay in sync through a simple tick() pattern that Defold polls from its update() function.
The bridge uses a window-namespaced queue rather than any proprietary runtime coupling, which keeps the Defold side minimal — just standard html5.run() calls with JSON-encoded payloads. For developers building hybrid experiences where a Defold game lives inside a React UI — custom overlays, leaderboards, storefronts, or tool integrations — this package removes the boilerplate and lets both sides speak naturally to each other.