HarmonyX is a library developed for patching, replacing and decorating .NET and Mono methods during runtime. In the context of Cities Skylines 2, it helps in modifying the behavior of existing game functions.
- Download the latest version.
- Extract and place it in the BepInEx/plugins folder inside your Cities Skylines 2 directory.
- Make sure to reference the library when you’re creating mods that require method patching.
This is not a standalone mod for Cities: Skylines II.
Together with BepInEx it’s a base for creating mods in Cities: Skylines II.