
Kimetsu no Yaiba Addon| Mugen Castle Dimension Fix
Java data pack listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.
Fixes structure generation inside the Mugen Castle Dimension and protects the player from falling into the void
⬇ Download on Modrinth


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
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
- Downloads as MugenFix_1.20.1.zip
- Download size: 3 KB
- Download link checked 24 Oct 2026 — working
These come from our own check of the pack file, not from the source page.

