
Modrinth · Minecraft mod
Safe Crystals
Prevents punching obsidian while holding an end crystal (client-side).
Quick answer
Which Safe Crystals release should I use?
Safe Crystals S1 targets 1.21.1 with Fabric. It must be installed on the client. Do not install it on the dedicated server. All 1 required mods have matching files.
Where it goes
Is Safe Crystals required on the client, server, or both?
It must be installed on the client. Do not install it on the dedicated server.
This file is marked client-only.
What else does Safe Crystals S1 need?
S1. Change the file and its required mods may change too.
Install Fabric API first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Safe Crystals without breaking your instance.
Built for Safe Crystals S1. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use S1. It targets 1.21.1 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric API first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
It must be installed on the client. Do not install it on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside S1. It opens that exact file at the source.
About this project
What does Safe Crystals add?
Safe Crystals
Safe Crystals is a lightweight client-side Fabric mod that helps prevent accidental obsidian punching while placing end crystals.
The mod blocks obsidian attack actions while you are holding an End Crystal. This helps keep crystal placement smooth and prevents unwanted block-breaking interactions during crystal PvP.

Features
- Prevents accidental obsidian punching while holding End Crystals
- Helps keep crystal placement smooth and uninterrupted
- Blocks unwanted obsidian breaking animations
- Includes an in-game toggle keybind
- Shows an actionbar message when toggled
- Configurable through Mod Menu
- Client-side only
How it works
If Safe Crystals is enabled and you are holding an End Crystal, attacking obsidian is blocked.
This helps prevent accidental obsidian punching during fast crystal placement and keeps the placement flow more consistent.
If the mod is disabled, Minecraft behaves normally again.

Configuration
Safe Crystals can be configured through Mod Menu.
You can configure:
- Whether the mod is enabled
- Whether actionbar messages are shown
- The toggle keybind

Toggle Keybind
Safe Crystals includes an in-game keybind for quickly enabling or disabling the protection.
By default, the toggle key is:
B
When toggled, the mod can show an actionbar message telling you whether Safe Crystals is enabled or disabled.

Requirements
- Fabric Loader
- Fabric API
- Cloth Config
Optional
- Mod Menu, recommended for in-game configuration
Contact
If a version is missing or there is a specific request, feel free to contact me on Discord.
Project description from Modrinth.
Pick your setup
Safe Crystals by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.3
1 loader build26.2
1 loader build26.1.2
1 loader build26.1.1
1 loader build26.1
1 loader build1.21.11
1 loader build1.21.10
1 loader build1.21.9
1 loader build1.21.8
1 loader build1.21.7
1 loader build1.21.6
1 loader build1.21.5
1 loader buildShowing the newest 12 of 17 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Safe Crystals versions and loaders
S1
nocrystalbreak-S1+mc1.21.1-fabric.jar
4 Oct 2026
S1
nocrystalbreak-S1+mc1.21.2-fabric.jar
4 Oct 2026
S1
nocrystalbreak-S1+mc1.21.3-fabric.jar
4 Oct 2026
S1
nocrystalbreak-S1+mc1.21.4-fabric.jar
4 Oct 2026
S1
nocrystalbreak-S1+mc1.21.5-fabric.jar
4 Oct 2026
S1
nocrystalbreak-S1+mc1.21.6-fabric.jar
4 Oct 2026
S1
nocrystalbreak-S1+mc1.21.7-fabric.jar
4 Oct 2026
S1
nocrystalbreak-S1+mc1.21.8-fabric.jar
4 Oct 2026
S1
nocrystalbreak-S1+mc1.21.9-fabric.jar
4 Oct 2026
S1
nocrystalbreak-S1+mc1.21.10-fabric.jar
4 Oct 2026
S1
nocrystalbreak-S1+mc1.21.11-fabric.jar
4 Oct 2026
S1
nocrystalbreak-S1+mc1.21-fabric.jar
4 Oct 2026
Looking for an older file? The official Modrinth project page is in Resources.