mono

ILSpy

+82

.NET Decompiler with support for PDB generation, ReadyToRun, Metadata (&more) - cross-platform!

BepInEx

+40

Unity / XNA game patcher and plugin framework

MelonLoader

+23

The World's First Universal Mod Loader for Unity Games compatible with both Il2Cpp and Mono

uno

+15

Open-source platform for building cross-platform native Mobile, Web, Desktop, and Embedded apps from a single C#/XAML codebase. Work from any IDE/CLI with Hot Reload, Visual Designer, MCPs, and Skills built for modern .NET workflows. 200M+ NuGet downloads.

Harmony

+7

A library for patching, replacing and decorating .NET and Mono methods during runtime

LiteNetLib

+4

Lite reliable UDP library for Mono and .NET

pythonnet

+4

Python for .NET is a package that gives Python programmers nearly seamless integration with the .NET Common Language Runtime (CLR) and provides a powerful application scripting tool for .NET developers.

Paket

+2

A dependency manager for .NET with support for NuGet packages and Git repositories.

mono/CppSharp

+2

Tools and libraries to glue C/C++ APIs to high-level languages