FifthChorus
Reworked Fourth Chorus Bossfight
About this mod Author’s original text
Fifth Chorus
A Silksong mod that reworks the Fourth Chorus boss, adding a faster fight flow, extra phases, and some quality-of-life features when fighting it.
Features
- Reworked Fourth Chorus Boss Fight
The Fourth Chorus encounter is reworked to create a more difficult, but fun fight.
Patterns are adjusted to avoid repeats, boss logic is smarter, and the boss has a completely new 4th phase.
Watch the showcase on YouTube
- In-Game Boss Config Menu
Press F6 (configurable) to open a custom Boss Config menu:
- Choose a difficulty, see a description, then press Start to jump into the fight
- Difficulty Presets (Free Play / Easy / Medium / Hard)
Each difficulty configures the player’s stats before teleporting:
- Free Play
Use your current save’s gear, tools, masks, and silk. No changes applied.
- Easy
7 masks, 9 silk, no upgrades.
- Medium
6 masks, 9 silk, no upgrades, no non-combat silk skills (except dash and cloak).
- Hard
5 masks, 9 silk, no tools, no upgrades, no non-combat silk skills (except dash and cloak).
- Instant Teleport to Fourth Chorus Arena
Upon starting the fight, the mod warps directly to the Fourth Chorus room:
- Scene: Bone_East_08
- Gate: right1
This can be done at any time once loaded in, as long as the game is not paused.
- Save Blocking (Safe Sandbox Mode)
All calls to GameManager.SaveGame are intercepted and skipped:
- No autosaves or manual saves while the mod’s patch is active
- Your real save file won’t be altered by using this mod
As a result, you do not need a dedicated save file to play with this mod. Any save you have will work.
It is still always recommended to back up your save when playing with mods.
Installation
- Install BepInEx for Silksong (follow the standard setup for your platform).
- Build this project to produce FifthChorus.dll (or grab it from releases).
- Drop FifthChorus.dll into:
- Silksong/BepInEx/plugins/ (or any folder inside plugins).
- Launch the game.
Usage
- Load your save as normal.
- Once in-game, press F6 (default) to open the Fifth Chorus Config Menu.
- Pick a difficulty:
- Free Play / Easy / Medium / Hard
- Read the description, then press Start to:
- Apply the preset stats
- Teleport to the Fourth Chorus arena
Install & use Install: BepInEx plugin
- The archive from playbuff is the mod itself — usually a BepInEx plugin (a .dll or a plugin folder once unzipped).
- 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.
- Manual route: install the BepInEx loader in the game folder, then drop the unzipped .dll or plugin folder into BepInEx/plugins/.
- 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.
Install these first, or the mod will not work: