Avoid the cubes while the speed progressively increases! Can you beat the rainbow level?

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Winner of the 2022 React Open Source Awards in the category Fun Side Project of the Year!

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The game is inspired by an old flash game I used to play in the late 2000s called Cubefield. My version is in full 3D and built with React, THREE.js and react-three-fiber to glue them together.

I went for a synthwave aesthetic, including some self-composed music, which the visual effects are synced to (so turn the music on!).

High scores are stored by the Mobius wrapper in highscores.json, with a namespaced localStorage fallback for standalone development.

The development process will be detailed on my website.

Screenshots

Controls

• Left: A, LeftArrow

• Right: D, RightArrow

Touch devices have on-screen controls.

Mobius package

This fork includes a Mobius package:

• mobius.json is the install manifest.
• index.jsx is the Mobius wrapper. It probes the packaged build, requests fullscreen/immersive shell chrome, bridges high-score storage, and emits app_ready, error, run_ended, high_score, and item_updated signals.
• build/ is a prebuilt CubeRun static bundle served by Mobius under /app-embeds/by-id/<app_id>/.
• src/ is the editable third-party game source. Gameplay knobs live in src/constants/index.js.
• icon.png is the Mobius home-screen icon.

Install URL:

https://raw.githubusercontent.com/mobius-os/app-cuberun/main/mobius.json

Data contracts:

• Durable high scores: window.mobius.storage path highscores.json, value shape [number, number, number] sorted descending.
• Standalone fallback keys: cuberun:highscores and cuberun:musicEnabled. Bare legacy keys are read only for migration and corrupt values fall back to safe defaults.

Rebuild and repackage loop:

1. Install dependencies with npm install or yarn install.
2. If the old CRA toolchain fails, run tools/fix-postcss-safe-parser.sh and tools/fix-three-loaderutils.sh.
3. Run npm run build. The script sets the Webpack 4/OpenSSL compatibility flag needed on current Node versions. The build must keep relative asset paths (./static/...), not root-absolute paths.
4. Regenerate or update mobius.json static_assets to match the new hashed files in build/.
5. Run npm run verify:mobius.
6. Reinstall the app package in Mobius and smoke the wrapper. The package is not marked offline-capable until every build asset is proven cached under /app-embeds/by-id/cuberun/.