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Welcome to the Quest UE4 Modloader wiki — a universal Lua modding framework for Unreal Engine 4 games on Meta Quest.

What is this?

Quest UE4 Modloader is a C++ shared library (libmodloader.so) that injects into UE4 games on Meta Quest headsets, providing:

• Lua 5.4 scripting — Write mods in Lua with a rich API
• UE4 reflection access — Read/write any property, call any function
• ProcessEvent hooking — Intercept any Blueprint or C++ UFunction
• Native ARM64 hooking — Hook stripped C++ functions with Dobby
• Live debugging — TCP bridge for real-time code execution via ADB
• PAK injection — Mount custom content packs before engine init
• SDK generation — Auto-dump all game classes, structs, and enums

Quick Navigation

Page	Description
Getting Started	Setup, installation, your first mod
Creating Mods	Mod development guide with examples
Lua API Reference	Complete API documentation
Debug Menu API	In-game mod menu system
Architecture	Internal design and components
Porting Guide	Adapt to other UE4 Quest games
Troubleshooting	Common problems and solutions

Supported Games

Game	Status
Resident Evil 4 VR	✅ Fully supported
Other UE4 Quest titles	🔄 Universal design — see Porting Guide

Community

• GitHub Issues — Bug reports & feature requests
• GitHub Discussions — Questions & community