Adds a mechanic to the Iron Door, so that when you place an emerald block next to it, it becomes permanently blocked, preventing any redstone signals from reaching the door. And how can I open it?
**With the Data Diver!**
_This is your master key, which allows you to open any door that is locked with the aforementioned lock,_![Data Diver recipe!]
Remember,
Spoiler
FOR IT TO WORK PLACE AN EMERALD BLOCK NEXT TO THE IRON DOOR!
(https://cdn.modrinth.com/data/cached_images/13419751a2055502b2c813a7dc75125b80c4f7ab.png)
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- 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 — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as fnc-1.0.0.jar — drop this file into the mods folder
- Download size: 34 KB
- Download link checked 6 Sept 2026 — working
These come from our own check of the pack file, not from the source page.