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Kimetsu no Yaiba Addon | Mugen Castle Dimension Fix

Kimetsu no Yaiba Addon | Mugen Castle Dimension Fix

DATA PACK
Fixes structure generation inside the Mugen Castle Dimension and protects the player from falling into the void
by Krebton
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Updated Oct 14, 2026
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Miscellaneous Mod Support
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This is a simple lightweight datapack that fixes structure generation separation inside the Mugen Castle Dimension preventing structures from overlapping aggressively with each other, which makes it really difficult to explore and fight inside the Mugen Castle.
It also prevents the player from falling into the void by teleporting him back to ~ 100 ~ once he reachs y=-20 so he won't go deeper inside the void to the point where he starts to take damage.
Please, be aware that this datapack doesn't ELIMINATE structure overlapping completely, however, it reduces it to the point where it won't be hard to explore or fight inside the Mugen Castle.

Supported Mod:


Features:

  • Reduces structure overlapping inside the Mugen Castle by increasing structure separation
  • Protects the player from falling into the void

Showcase:

Before:

After:


Credit:

Orca_san_ -  Author of the mod Kimetsu no Yaiba (Demon Slayer)

 

Available On:

MugenFix_1.20.1.zip
MC 1.20.1
Release 2026-06-07 Get

Requirements & install

How to use this data pack in Minecraft
Mods needed
None, works in vanilla
Minecraft
1.20.1
Install folder
saves/<world>/datapacks

How to install data packs

  1. Download the data pack .zip file (do not extract it).
  2. New world: click Data Packs on the world creation screen and drop the .zip in. Existing world: open .minecraft/saves/<world>/datapacks.
  3. Put the .zip into the datapacks folder of the world (servers: world/datapacks).
  4. Run /reload in game (or rejoin the world) and check it with /datapack list.
Browse more: Data Packs for 1.20.1 All data packs

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