HKInvulnerability

An invulnerability mod for Hollow Knight and Hollow Knight: Silksong.

Features

• Full invulnerability: no damage, no knockback — enemies, spikes, acid, and lava pass straight through you.
• Toggle any time with a single key press, with an on-screen message confirming the change.
• Rebindable toggle key through a simple config file.

Installation

1. Install BepInEx (Mod Loader)

   • Download BepInEx_x64_...zip from the BepInEx Releases page.
     

     Warning: Do NOT download the _x86 version. Hollow Knight is a 64-bit game and requires the x64 version.

   • Extract the contents of the zip file directly into your game folder.

   • Run the game once. BepInEx will create a new plugins folder.
     

     Click here if you need help finding your game folder.

     • Steam: In your Library, right-click the game > Manage > Browse local files.
     • GOG: In GOG GALAXY, select the game > Settings Icon > Manage installation > Show folder.

2. Install the Mod

   • Go to the Releases Page and download the zip for your game:
     • Hollow Knight: Invulnerability-HollowKnight-vX.X.X.zip
     • Silksong: Invulnerability-Silksong-vX.X.X.zip
   • Extract Invulnerability.dll from the zip into the BepInEx/plugins/ folder that was just created. The final file path should look like this: .../Hollow Knight/BepInEx/plugins/Invulnerability.dll

3. Launch the Game

   • That's it! The mod is now installed and ready to use.

How to Use

• The mod is enabled by default when you start the game.
• Press the F3 key on your keyboard to toggle invulnerability on or off.
• A colored message will appear at the top of your screen confirming whether the mod is Enabled or Disabled.

Changing the toggle key

After running the game once with the mod installed, open BepInEx/config/DG.Invulnerability.cfg in any text editor and change the ToggleKey value. Any UnityEngine KeyCode name works, e.g. F3, K, or Keypad5. The mod is also compatible with ConfigurationManager if you prefer changing it from an in-game menu.

Bug Reports & Feature Requests

Found a bug or have an idea for the mod? Open an issue on the Issues page.

For bug reports, please include:

• Which game you're playing (Hollow Knight or Silksong) and the game version.
• What happened, and where (e.g. the area/room you were in).
• Your BepInEx log if possible (BepInEx/LogOutput.log in your game folder).

Disclaimer

This mod fundamentally alters the gameplay experience and is intended for practice or casual enjoyment. This mod may not be compatible with other Hollow Knight mods that also alter player health or damage mechanics. Use at your own discretion.