this mod brings back the old 1.17 anvil break dupe glitch back so you can relive the old memories and make a knockoff unstable smp video and do whatever you want
idk its cool to like get an admin to add this as an optimization mod and dupe stuff for you for funsies hahahaha
THIS IS A SERVER-SIDE MOD!!!
HOW TO DUPE:
1:have your inventory full
2:rename shulker with an anvil thats about to break
3:rename shulker until it breaks
4:enjoy
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- 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 anvildupe-1.0.jar — drop this file into the mods folder
- Download size: 4 KB
- Download link checked 7 Sept 2026 — working
These come from our own check of the pack file, not from the source page.