Enlighten UE5 4.03 is based on Unreal Engine 5.4.0 through 5.6.0.

Enlighten UE5 is distributed as a collection of .zip files containing modifications to the base Unreal Engine version. The distribution .zip files are named as follows:

EnlightenUE5-[Version]-[Unreal Engine Version]-[Type].zip

Version is the version of Enlighten. This comprises:

the Enlighten version number
R denotes the initial release; Pn denotes patch n
the internal build number

Unreal Engine Version is the version of Unreal Engine this package is compatible with

Type may be:

Base — Required. This zip contains the modified engine files and the Enlighten libraries and tools.
Samples — This zip contains maps and assets demonstrating Enlighten, contained in EnlightenSamples.uproject.
Platform specific files — Extra files required to run on console platforms. These are provided only to registered platform developers.

For example EnlightenUE5-4.03.R.12345-UE5.4.0-Base.zip contains the Base files for the initial release of Enlighten UE5 version 4.03 compatible with Unreal Engine version 5.4.0.

Enlighten license

The Enlighten Precompute requires a valid Enlighten license. Please place the license file in Engine/Binaries/ThirdParty/Enlighten.

Each licence file is valid for a limited period. For licensing support, contact Enlighten Support.

Build Enlighten UE5

To build the Enlighten UE5 editor:

Install an unmodified copy of a supported version of Unreal Engine. This must be the major release, not a hotfix.
Download the Enlighten packages compatible with your Unreal Engine version.
Extract the Enlighten packages on top of your unmodified copy of Unreal Engine, overwriting files where necessary.
Delete the Engine/Intermediate folder, if it exists.
Run GenerateProjectFiles.bat.
Rebuild at least the following projects:
1. UnrealFrontend Development Win64
2. UnrealLightmass Development Win64
3. ShaderCompileWorker Development Win64
4. UE5 Development Editor Win64

To evaluate Enlighten with a hotfix release of Unreal Engine you can perform a three way merge between:

Left: your Unreal Engine source tree with the hotfix
Right: the base Unreal Engine + Enlighten source tree.
Common Ancestor: the unmodified copy of Unreal Engine.

Supported Visual Studio versions

Visual Studio 2022 - MSVC 14.38

Supported console SDKs

	PS4	PS5	Xbox GDK	Switch
UE5.4	11.508	9.000	October 2023 Update 3	16.2.3
UE5.5	12.008	10.000	June 2024 Update 2	18.3.1
UE5.6	12.508	11.000	April 2025	20.5.6