Legacy: Unreal Engine 4 Installation and Compatibility

Updated: Feb 16, 2026

Legacy guidance: Meta ended support of Unreal Engine 4.27 in Meta XR SDK v62, and no further updates will be made. See Installing Unreal Engine for instructions on installing the recommended version. The information on this page is preserved for teams maintaining existing UE4 projects.

Installing UE 4.27, Meta’s fork

This installation includes Unreal Engine 4.27, the Meta XR plugin, and additional features and fixes that make UE work seamlessly with Meta Horizon OS. It is not necessary to install the plugin separately when installing Meta’s fork of UE 4.27.

Prerequisites

Before you begin, ensure you have:

A verified Meta Developer Account

Linked Epic Games and GitHub accounts

For detailed guidance and hardware requirements, see Prerequisites for installing Unreal Engine.

Steps

In the Oculus-VR fork of Unreal Engine on GitHub⁠, open the branch list, and then select the Tags tab.

In the search box under the Tags tab, enter 4.27 (or scroll down to the 4.27 releases), and select a version. The first version number in the tag name, such as 4.27.2, is the Unreal Engine version, and the last version number, such as v62.0, is the Oculus Platform SDK version. Select the most recent version of 4.27.

Screenshot of Tags list in the Oculus-VR fork

Click Code, and then click Download ZIP to download the files.

Note: If you prefer, follow the instructions under Getting Up and Running in the repository’s README file to clone your own private fork and then compile and run the UE editor.

Unzip the folder to the preferred location on your development machine.

Important: Unzip the UE source to a short local path (for example, C:\UE) to avoid exceeding the Windows maximum path length⁠, which causes build failures. Do not use a network share, as this significantly slows down the build process. If you need a shorter path, create a junction point⁠ to your target directory.

Changes in Meta’s fork of UE 4.27

To review the changes in Meta’s fork of UE 4.27, see the comparison instructions in the repository’s README on the 4.27 branch of the Oculus-VR fork⁠.

UE4 Feature Compatibility

The table below shows which features are available in UE 4.27 via the Oculus-VR fork.

Features

Feature	UE 4
Hand Tracking	✓
Movement SDK	✓
MR Occlusions (Depth API)	-
Passthrough	Limited
Scene SDK	Limited
Spatial Anchors	✓

Performance

Feature	UE 4
Application Space Warp	✓
Dynamic Resolution	✓
Eye Tracked Foveated Rendering	✓
Fixed Foveated Rendering	✓
Iteration Time Improvements	✓
Late Latching	✓
Layer Supersampling and Sharpening	Limited
Mobile compositor layer depth testing	-
OS Splash Screen	✓
Additional Perfetto Markers	✓
Software Occlusion Culling	✓
Tonemap Subpass	✓
VR MobileHDR	-
Mobile Deferred	-
Enhanced LightGrid Based Dynamic Local Lights	-
Uniform Based Dynamic Local Lights	-
Emulated Uniform Buffer	-
Adreno Occlusion Path	-
Meta Quest Super Resolution (MQSR)	-

Next steps

Legacy: Oculus VR Plugin for UE 4.27

Legacy: UE 4.27 Samples

Installing Unreal Engine 5 (recommended)

Did you find this page helpful?