# Extended Reality (XR) Resources  on ZEEF

> Human-curated extended reality (xr) resources  resources by named experts. Not algorithm-ranked results.

ZEEF is a human-curated link directory. Every page is built by a named person, not ranked by algorithm. Multiple curators can build competing pages on the same subject, so readers see multiple expert perspectives.

## Curator pages on this subject

- [Extended Reality (XR) Resources  by Marco Romero](https://extended-reality.zeefdev.com/maromero): Rebuilt from the internet's first collaborative VR database (2016). I'm Marco Romero — 3D designer and XR specialist. This is an unbiased, expert-moderated shortlist: no ads, no marketing, just what professionals actually use.
  - [A-Frame](https://aframe.io) — Mozilla's open-source web framework for building VR and AR experiences with HTML and an entity-component system — runs in any WebXR-capable browser.
  - [Ultimate XR Dev Guide (GitHub)](https://github.com/authorTom/ultimate-XR-dev-guide) — Community-maintained, comprehensive list of XR/VR/AR development resources — engines, SDKs, spatial audio, photogrammetry, and WebXR tools in one repo.
  - [Godot Engine](https://godotengine.org) — Open-source engine with growing XR support via OpenXR. Lightweight, MIT-licensed, and a serious alternative to Unity for indie and enterprise XR projects.
  - [Immersive Web Community Group (W3C)](https://immersive-web.github.io/) — W3C working group developing the WebXR spec. Follow here for official proposals, explainers, and the roadmap for browser-based immersive experiences.
  - [Three.js](https://threejs.org/) — The most widely used 3D JavaScript library, with built-in WebXR support. Foundation of countless browser-based VR and AR experiences on the open web.

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