Fabric Reinforced Obsidian
Java mod listed for Minecraft 1.18–1.21. Downloads from the MC Java Mods app on Android.
Fabric Reinforced Obsidian adds the reinforced obsidian, which is a wither-proof block, that is, it can't be damaged by explosions, not even ones from the…
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Fabric Reinforced Obsidian
This mod adds a block called reinforced obsidian, that can't be broken by the Wither. It also adds reinforced bars used to create the reinforced obsidian. The block itself comes from EnderIO and although the textures are similar, I recreated them in paint.net myself. This also means that they are subject to change.
There are reinforced obsidian slabs, stairs and walls, plus reinforced glass and tinted glass. They all serve the same function.
Reinforced obsidian blocks allow the player to build a safe Wither cage with as little as 6 of them! (You could potentially just use the bedrock on the nether roof as a substitute for the block below the Wither. Anywhere else, though, that block is needed)
How to use
To make reinforced iron bars, substitute the iron ingot on the center slot of a vanilla iron bar recipe for a netherite ingot. You can craft the reinforced obsidian with four iron ingots, four reinforced iron bars and one obsidian:
From version 1.18.1-1.0.5 forward, both reinforced glass and reinforced tinted glass have been added to the game. Just like their reinforced obsidian counterpart (and its variants), both blocks are wither resistant as well! The reinforced obsidian glass can be crafted with four obsidian, four reinforced iron bars and one glass. The reinforced tinted glass can be crafted with one reinforced glass and four amethyst shards.
F.A.Q.:
Q: Will you port this to Forge?
A: No. If you want to do it, please contact me.
Q. Can you port this to [older version]?
A: No.
Q: I don't like the recipes! How do I change them?
A: Use datapacks.
Q: Can I translate this mod and provide the lang file?
A: Of course! Feel free to do so. Submit a PR!
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.8, 1.21.7, 1.21.6
- 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 CurseForge — 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.
- Ships as fabric-romod-1.21.6-1.2.12.jar — drop this file into the mods folder
- Download size: 33 KB
- Download link checked 25 Sept 2026 — working
These come from our own check of the pack file, not from the source page.