The engine in a browser tab
In 2009, Minecraft spread because clicking a link put you in the game. That trick was a Java applet riding a local runtime. The 2026 version is WebAssembly + WebGPU — and as of tonight, the DFD engine does it for real.
Unified physics in a browser tab
The entire engine — the DFD field, the light that bends through it, the forest, the atmosphere, the day cycle — now runs on WebGPU in a Chrome tab. Not a port of the renderer: the same engine and the same physics gates. The browser build brings the field up on your GPU when the page loads (you watch the same progress bar the native client shows), then you fly over New Earth at interactive rates.
The work was mostly discipline, not rewriting. A few desktop-only systems sit out of the browser build, and the browser version is sized to fit a browser's memory. The world server we shipped yesterday will serve browser players unmodified — that's the next milestone, along with streaming the real textures and characters in (tonight's build wears placeholder materials).
Verified the way we verify everything now: headless Chrome booted the page, the console logged the world coming up on the GPU, and the screenshot shows dusk falling over New Earth's curved horizon — from a web page. Native build untouched: all four physics gates green, 28/28 tests.
Engine v0.13.0. No public link yet — the play button appears on ractr.com when the game is done, and now we know exactly how it'll work when it does.