How do I install Middle Magnum Opus?

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 Middle Magnum Opus work with?

The listing gives Minecraft 1.21.1, 1.20.1, 1.19.2. This is the version stated by the author or source site, not something we verified ourselves.

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Middle Magnum Opus

Java modpack listed for Minecraft 1.19–1.21. Downloads from the MC Java Mods app on Android.

by magnam_indie · on CurseForge

An exploration and building based modpack with numerous dungeons and mystical artifacts scattered throughout the world.

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 Forge2 builds

Minecraft version

Minecraft 1.21.1Newest

Minecraft 1.20.1Newest
Minecraft 1.19.2

⬇ Download for 1.21.1 · NeoForge ⬇ Download for 1.20.1 · Forge ⬇ Download for 1.19.2 · 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 →

Here in Middle Magnum Opus, you can have all the adventure with much less lag! See the numerous dungeons dotted throughout the wondrous landscapes as you construct machines to your liking. Adventure at your own pace and enjoy traversing the Aether dimension! It's well worth it however you decide to play. Feel free to send me your feedback and critiques!

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.1, 1.20.1, 1.19.2
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

Downloads as Middle Magnum Opus-0.99.zip
Download size: 1.6 MB
Download link checked 17 Oct 2026 — working

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

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