Supported platforms
Required Unity, URP, operating system, and development-tool versions.
Unity and UI framework
- Unity 6 (
6000.3.0f1or newer). - Unreal Engine and Godot are not supported.
- Vite + Solid.js for the UI. React and Vue adapters are not included.
Operating systems
| OS | Editor | Player builds |
|---|---|---|
| macOS Apple Silicon | Supported | Supported |
| Windows x86-64 | Supported | Supported |
Mobile, console, Linux, and WebGL builds are not supported.
Render pipeline
Loom requires URP 17.3.0 or newer. The Built-in Render Pipeline and HDRP
are not supported.
Graphics API
| OS | Graphics API |
|---|---|
| macOS | Metal |
| Windows | Direct3D 11 or Direct3D 12 |
Live RenderTexture images support the same graphics APIs.
Development tools
Install these on development and build machines:
- Node.js 22 or 24 LTS for the UI dev server and production UI build.
- npm 10 or 11, normally bundled with those Node.js releases.
- Public npm-registry access during initial setup for Solid, Vite, and their third-party dependencies. Loom’s matching UI packages are bundled locally; a configured registry mirror or cache can supply the other packages.
- Firefox (optional) for
Tools > Loom > Open Browser DevTools.
After setting up Loom, enter Play mode and run Tools > Loom > Doctor. It checks whether Unity can find these tools; a tool available in your terminal may be missing from Unity’s PATH.