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BepInEx fork of Il2CppAssemblyUnhollower is now Il2CppInterop!

Looking for old README and guides? Check out legacy-unhollower branch.

Il2CppInterop is a framework for bridging together Unity's Il2Cpp and .NET's CoreCLR runtimes. The framework various interoperability tools:

• A tool to generate .NET assemblies from Cpp2IL's output.
• A runtime library to work with Il2Cpp objects in CoreCLR.
• Libraries to integrate other tools with Il2Cpp.

The framework allows the use of Il2Cpp domain and objects in it from a managed .NET domain. This includes generic types and methods, arrays, and new object creation.

This project started out as fork of knah/Il2CppAssemblyUnhollower but has been since been modified with new API and fixes to be a standalone project.

Getting started

For plugin developers:

• Class injection
• Implementing interfaces
• Components and AssetBundles

For tool integrators and advanced user:

• Using the command line tool
• Generating assemblies and bootstrapping runtime

Used libraries

Bundled into output files:

• iced by 0xd4d, an x86 disassembler used for xref scanning and possibly more in the future

Used by generator itself:

• Mono.Cecil by jbevain, the main tool to produce assemblies