How do I install Reinforced Construction?

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. Opens on CurseForge — not every file is mirrored on our own servers.

What Minecraft version does Reinforced Construction work with?

The listing gives Minecraft 1.21.1, 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

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Reinforced Construction

Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.

by PorotoMz · on CurseForge

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader NeoForge1 build
Mod loader Forge1 build

Minecraft version

Minecraft 1.21.1Newest

Minecraft 1.20.1Newest

⬇ Download for 1.21.1 · NeoForge ⬇ Download for 1.20.1 · Forge

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

Reinforced Construction — Minecraft Java mod, screenshot 1

Reinforced Construction — Minecraft Java mod, screenshot 2

Reinforced Construction — Minecraft Java mod, screenshot 3

Reinforced Construction adds +70 new Blast Resistance blocks to Minecraft using a new Obsidian Block.

Recommended if you have a very hostile world and don't want to protect your base using vanilla obsidian only.

How to obtain the new blocks:

You have to smelt an Obsidian block to obtain the new block Smooth Obsidian.
The Smooth Obsidian is used in most of the recipes from this mod, such as new Obsidian Blocks or Reinforced Blocks.
You can make new Blast Resistance Glass by smelting the Smooth Obsidian to obtain Crystallized Obsidian.

Extra Info:

Some types of block have their unique Hardness and Resistance value.
All blocks are EnderDragon immune.
Reinforced Netherite Blocks are WitherProof.
Reinforced Gold Blocks are Piston Pushable.
You have to use a LOT of obsidian blocks.

Fusion is REQUIRED. (from v1.0.1)

Available versions: 1.20.1, 1.21.1

Tested using: 1.20.1-forge-47.3.29, neoforge-21.2.122.

You can use Reinforced Construction in your Modpack ^^

All textures are made by PorotoMz.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.1, 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 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.

File checked by MCModsHub

Ships as reinforced_construction-1.1.0-forge-1.20.1.jar — drop this file into the mods folder
Download size: 635 KB
Download link checked 28 Sept 2026 — working

These come from our own check of the pack file, not from the source page.

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