generated: '2026-07-21'
method: searched
source: https://developer.varjo.com/downloads + https://github.com/varjocom + registry probes
notes: >-
  Varjo ships native and engine-plugin SDKs for its XR headsets rather than web-API
  client libraries. No first-party packages exist on npm, PyPI, NuGet, RubyGems,
  Packagist, crates.io, or OpenUPM (all probed 2026-07-21; the only hits are
  third-party: Silk.NET.OpenXR.Extensions.VARJO bindings on NuGet). Official SDKs
  are distributed from developer.varjo.com/downloads, GitHub (varjocom), and the
  Unreal Fab marketplace.
packages:
- language: c
  registry: vendor-download
  name: Varjo Native SDK
  url: https://developer.varjo.com/downloads
  docs: https://developer.varjo.com/docs/native/introduction-to-varjo-sdk
  version: 4.15.0
  official: true
  notes: Native C API for custom engines — rendering, foveated rendering, mixed reality, eye/hand tracking, DataStream API, spatial audio, video post-processing.
- language: csharp
  registry: github
  name: Varjo XR Plugin for Unity (com.varjo.xr)
  url: https://github.com/varjocom/VarjoUnityXRPlugin
  docs: https://developer.varjo.com/docs/unity-xr-sdk/getting-started-with-varjo-xr-plugin-for-unity
  version: 3.7.3
  official: true
  notes: Unity XR SDK plugin providing display, input, and mixed reality support; installed as a Unity package from GitHub.
- language: cpp
  registry: fab
  name: Varjo OpenXR Plugin for Unreal Engine
  url: https://developer.varjo.com/downloads
  docs: https://developer.varjo.com/docs/unreal/ue5/unreal5-getting-started
  version: 1.2.7 (UE 5.7)
  official: true
  notes: Available from the Fab marketplace or manual download; versions per Unreal Engine release (UE 4.26 through 5.7).
- language: csharp
  registry: github
  name: XR3-VR3 Ultraleap SDK for Unity
  url: https://github.com/varjocom/XR3-VR3-UnityModules
  official: true
- language: cpp
  registry: github
  name: XR3-VR3 Leap Motion SDK for Unreal Engine
  url: https://github.com/varjocom/XR3-VR3-LeapUnreal
  official: true
registries_probed:
- npm (no first-party results)
- pypi (404)
- nuget (third-party Silk.NET bindings only)
- openupm (com.varjo.xr not published, 404)