<img src="https://raw.githubusercontent.com/pardeike/Harmony/master/HarmonyLogo.png" alt="Harmony" width="180" /> Version 2.3 A library for patching, replacing and decorating .NET and Mono methods during runtime.

About

Harmony gives you an elegant and high level way to alter the functionality in applications written in C#. It works great in games and is well established in titles like

• Rust
• Rimworld
• 7 Days To Die
• Stardew Valley
• Subnautica
• Oxygen Not Included
• Besiege
• Cities:Skylines
• Kerbal Space Program
• Resonite
• BattleTech
• Slime Rancher

and others like Ravenfield, Sheltered, Staxel, The Ultimate Nerd Game, Total Miner, Unturned, SCP: Secret Laboratory ...

It is also used in unit testing WPF controls at Microsoft and Google and in many other areas.

How it works

If you develop in C# and your code is loaded as a module/plugin into a host application, you can use Harmony to alter the functionality of all the available assemblies of that application. Where other patch libraries simply allow you to replace the original method, Harmony goes one step further and gives you:

• A way to keep the original method intact
• Execute your code before and/or after the original method
• Modify the original with IL code processors
• Multiple Harmony patches co-exist and don't conflict with each other
• Works at runtime and does not touch any files

Installation

If you want a single file, dependency-merged assembly, you should use the Lib.Harmony nuget package. This is the preferred way.

If you instead want to supply the dependencies yourself, you should use the Lib.Harmony.Thin nuget package. You get more control but you are responsible to make all references available at runtime.

pardeike/Lib.Harmonyv2.3.4

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How it works

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