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KnY Extra Additions

Addon for Kimetsunoyaiba Tweaks that adds non-cannon content
by Clfrca
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3,606 downloads
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Updated Jul 6, 2026
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Adventure and RPG

Join the discord for updates and support: 

 
This project is still work in progress
 
This requires KimetsunoyaibaTweaks
 

KnY Extra Additions

A Forge addon mod for Kimetsu no Yaiba that adds custom breathing styles, nichirin swords, and demon slayer entities using the KimetsunoYaiba Tweaks API.

Minecraft: 1.20.1 | Forge: 47.4.0+ | Java: 17

 

Join the discord for updates and support: 

 

Features

Custom Breathing Styles

  • Frost Breathing - 7 forms with ice/snow effects
  • Ice Breathing - 7 forms with freezing abilities
  • Alcohol Breathing - 7 forms with intoxicating effects
  • Forest Breathing - 6 forms with nature-based attacks

Nichirin Swords

Sword Breathing Style Category
Nichirinsword Frost Frost (6 forms) Nichirin
Nichirinsword Komorebi Frost (7 forms) Special
Nichirinsword Golden Golden Frost Special (Hidden)
Nichirinsword Ice Ice (6 forms) Nichirin
Nichirinsword Shimizu Ice (7 forms) Special
Nichirinsword Alcohol Alcohol Nichirin
Nichirinsword Sakebito Alcohol Special
Nichirinsword Forest Forest Nichirin
Nichirinsword Shinrinsha Forest Special

Custom Entities

  • Setsu Komorebi - Frost Breathing master with all 7 forms
  • Akira Shimizu - Ice Breathing master with all 7 forms
  • Ice Slayer - Generic Ice Breathing demon slayer
  • Frost Slayer - Generic Frost Breathing demon slayer

Projectile Entities

  • Thrown Sword - Used by Frost Breathing 6th Form: Polar Mark

Requirements

Installation

  1. Install Minecraft Forge 1.20.1
  2. Download and install the Kimetsu no Yaiba base mod
  3. Download and install Kimetsunoyaiba Tweaks from Modrinth
  4. Download KnY Extra Additions and place in your mods folder

Usage

Obtaining Swords

All nichirin swords are available in the KnY Additions creative tab. Hidden swords like the Golden Frost sword are obtained through gameplay mechanics (7th form transformation).

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knyextraadditions-1.1.127.jar
MC Client, 1.20.1, Forge, Server
Release 2026-03-27 Get

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