LostSinner

v1.0.0·Updated 2025-10-06

Mods the First Sinner boss from Hollow Knight: Silksong to be slightly more difficult.

About this mod Author’s original text

Lost Sinner

Mods the First Sinner boss from Hollow Knight: Silksong to be slightly more difficult.::

GitHub release:

Installation intructions

Manual download

  • Download and install BepInEx.
  • Ensure that the game has run at least once so that a plugins folder is generated in the BepInEx folder besides the game executable.
  • Download the.zip file from one of the sources listed above.
  • Extract the.zip file to the generated plugins folder.
  • Launch the game and enjoy!

Important Notes

  • This modded boss is only accessible in Act 3 of the game.
  • A save file user3.dat right outside the boss room is provided.
  • Under the Miscellaneous files section page.
  • Inside the.zip file.
  • Downloadable from GitHub releases.
  • To use the save file, navigate to the saves folder of your Hollow Knight: Silksong game and move the user3.dat to the folder where the other user#.dat files are located.
  • Windows: %USERPROFILE%/AppData/LocalLow/Team Cherry/Hollow Knight Silksong/
  • macOS: ~/Library/Application Support/unity.Team-Cherry.Silksong/
  • Linux: ~/.config/unity3d/Team Cherry/Hollow Knight Silksong

Install & use Install: BepInEx plugin

  1. The archive from playbuff is the mod itself — usually a BepInEx plugin (a .dll or a plugin folder once unzipped).
  2. Recommended: use a community mod manager (such as r2modman) — pick this game, import the mod, and the manager sets up BepInEx and its dependencies for you.
  3. Manual route: install the BepInEx loader in the game folder, then drop the unzipped .dll or plugin folder into BepInEx/plugins/.
  4. Launch the game — the BepInEx console logs every plugin it loads; seeing this mod in the log means it is installed.

Mods with listed dependencies need those installed too, or they will not load. Options are usually changed in-game or in the plugin's config file.

Dependencies

Install these first, or the mod will not work:

BepInEx-BepInExPack_Silksong

File & checksum

Filename
LostSinner-1.0.0.zip
File size
6.3 MiB