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Tech riderRev. 20 Sept 2026

UE4SS

Ch 235.6of 25 Game Mod Loaders
  1. 1Runs onWindows
  2. 2CostsNot stated by the maker
  3. 3Supported platformsWindows
  4. 4Mod loading methodinjection
  5. 5Load-order controlYes
4 lines stated Written from the maker's own pages: docs.ue4ss.com
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The UE4SS homepage

Overview

UE4SS is ranked #23 of 25 in game mod loaders on Specifiction. It runs on Windows.

Compared on game mod loaders

Supported platforms
Windowsdocs.ue4ss.com
Mod loading method
injectiondocs.ue4ss.com
Load-order control
Yesdocs.ue4ss.com

Facts

Purpose
UE4SS is a Lua scripting system, C++ modding API, SDK generator, blueprint mod loader, live property editor, and set of dumping utilities for Unreal Engine 4/5 games.docs.ue4ss.com · 4 Oct 2026
UE support
The documentation lists target Unreal Engine versions from 4.7 to 5.8.docs.ue4ss.com · 4 Oct 2026
Lua mods
Its Lua scripting API supports writing mods based on the Unreal Engine object system.docs.ue4ss.com · 4 Oct 2026
Blueprint mods
Blueprint modloading can spawn blueprint mods automatically without editing or replacing game files.docs.ue4ss.com · 4 Oct 2026
Live property editor
The Live Viewer can search, view, edit, and watch properties of loaded objects to help debug mods and inspect runtime changes.docs.ue4ss.com · 4 Oct 2026
Code generation
UE4SS can generate Unreal Header Tool compatible headers for a mirror project and standard C++ headers from reflected classes and blueprints.docs.ue4ss.com · 4 Oct 2026
File and map utilities
Its dumpers can generate .usmap mapping files for unversioned properties and dump loaded actors to generate .umaps in-editor.docs.ue4ss.com · 4 Oct 2026
Installation options
The installation guide describes basic and developer packages, experimental builds, manual injection, and a central install location for multiple games.docs.ue4ss.com · 4 Oct 2026
Intended users
The basic install is intended for end users using UE4SS-dependent mods, while the developer install is intended for mod developers or users who need debugging, dumping, or other utilities.docs.ue4ss.com · 4 Oct 2026
Compatibility limitation
UE4SS is not described as a plug-and-play solution that works with every game; users may need to update AOBs themselves.docs.ue4ss.com · 4 Oct 2026
Platform
The build documentation lists Win64 as its supported platform and says Linux support might happen later, but not soon.docs.ue4ss.com · 4 Oct 2026
Security reporting
The project asks users to report sensitive security issues by emailing [email protected] rather than posting them to the issue tracker.docs.ue4ss.com · 4 Oct 2026
Support channels
The documentation directs users to search existing issues and documentation first, then open an issue with context, platform versions, and logs when available.docs.ue4ss.com · 4 Oct 2026

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