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Extreme Monsters (EM) project artwork

CurseForge · Minecraft mod

Extreme Monsters (EM)

Think Minecraft was too easy? This mod cranks up the challenge and pushes your survival skills to the limit!

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Extreme Monsters (EM) release should I use?

Updated 2 months ago
Latest stable file extreme_monsters-1.12.6.1-neoforge-1.21.1.jar
Game version 1.21.1
Loader NeoForge

Extreme Monsters (EM) extreme_monsters-1.12.6.1-neoforge-1.21.1.jar targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.

Where it goes

Is Extreme Monsters (EM) required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release NeoForge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

What else does Extreme Monsters (EM) extreme_monsters-1.12.6.1-neoforge-1.21.1.jar need?

extreme_monsters-1.12.6.1-neoforge-1.21.1.jar. Change the file and its required mods may change too.

All 1 required mods have matching files

Install GeckoLib first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.

4 listed on this file 2 pulled in by those mods
Curios API Optional for Extreme Monsters (EM) extreme_monsters-1.12.6.1-neoforge-1.21.1.jar
optional
Matching file found Matched file: curios-neoforge-9.5.1+1.21.1.jar
FerriteCore ((Neo)Forge) Optional for Extreme Monsters (EM) extreme_monsters-1.12.6.1-neoforge-1.21.1.jar
optional
Matching file found Matched file: ferritecore-7.0.3-neoforge
GeckoLib Needed by Extreme Monsters (EM) extreme_monsters-1.12.6.1-neoforge-1.21.1.jar
required
Matching file found Matched file: NeoForge 1.21.1 4.9.3
Just Enough Items (JEI) Optional for Extreme Monsters (EM) extreme_monsters-1.12.6.1-neoforge-1.21.1.jar
optional
Matching file found Matched file: 19.70.0.469 for NeoForge 1.21.1
MezzConfigGUI Needed by Just Enough Items (JEI)
pulled in
Matching file found Matched file: MezzConfig GUI mc1.21.1-0.5.5 for NeoForge
MezzConfig Needed by Just Enough Items (JEI)
pulled in
Matching file found Matched file: MezzConfig 0.7.1 for NeoForge 1.21.1

2 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.

Before you install it

Add Extreme Monsters (EM) without breaking your instance.

Built for Extreme Monsters (EM) extreme_monsters-1.12.6.1-neoforge-1.21.1.jar. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use extreme_monsters-1.12.6.1-neoforge-1.21.1.jar. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    Install GeckoLib first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.

  3. 03

    Put it on the correct side

    The project page does not say whether this file belongs on the client, dedicated server, or both.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside extreme_monsters-1.12.6.1-neoforge-1.21.1.jar. It opens that exact file at the source.

About this project

What does Extreme Monsters (EM) add?

Official Downloads The only two platforms where I officially publish this mod are CurseForge and Modrinth. Downloads from other websites don't really support me, so please download the mod from one of the official pages if possible. :') Any listings on websites other than CurseForge and Modrinth are not uploaded or managed by me.

⚠️ WARNING ⚠️

Do NOT install this mod carelessly! If you haven’t made a backup, a Flying Tracker may hunt you down and ruin your precious world. It’s strongly recommended to either:

-Start in a new world, or

-If you want to keep play in your current world, disable Flying Tracker spawns in the config first.

This mod no longer supports version 1.20.1.
Previous 1.20.1 builds made before the migration no longer include the latest features.

This mod places emphasis not only on combat but also on technology, so be sure to keep that in mind as you play.

E xtreme Monsters takes Minecraft survival to the next level with a full progression system built around powerful new materials, deadly Hyper mobs, and massive late-game challenges.

Your journey begins simple: gather resources, build your first industrial machines, and prepare yourself for what’s coming. But danger is always close—linger too long in one spot, and Trackers will find you. Defeat them to earn the mysterious Black Hole Matter, the very first step in a chain of progression that changes everything.

From there, you’ll unlock new tiers of Matter by taking down increasingly dangerous Hyper bosses:

  • Craft with Dark Matter to push past the early game.
  • Face the Hyper Magma Cube and claim Inferno Matter.
  • Challenge the mighty Hyper Ender Dragon for Dragon Matter.
  • Conquer the Hyper Wither and obtain the rarest Wither Matter.

Every victory opens the door to stronger gear, more advanced machines, and incredible automation. Collect souls, power up your Simulation Chamber, and push toward the ultimate goal: forging the near-mythical Perfect Matter. With it, you can craft devastating weapons, unbreakable armor, and legendary machines like the Infinity Matrix—capable of replicating entire Matters.

Extreme Monsters isn’t just about survival—it’s about escalation. Each step forward unlocks new dangers, bigger rewards, and a sense of power unlike any

You need help? Join our Discord sever!

Note1: Perfect Matter is optional. That’s why its recipe is extremely difficult. so no complaining!

Note2: We highly recommend using AE2 and Pipez mods when playing this mod.(I’m sure they’ll install JEI on their own, right?)

Note 3: Some items have multiple modes or extra functions.
Press C to use an Extra Function.
Press V to switch between modes.

Note 4: How to use Multi-Blocks?

-Fictional Planet Miner
How to build Fictional Planet Miner Multi-block?
How to work Fictional Planet Miner?

-Matter Catalyst BoilerHow to build and use Matter Catalyst Boiler?

-QSS (Quantum Superposition Simulation)How to build and use QSS Chamber?

-NSDR (Neutron Star Dyson Ring
How to build and use NSDR?

-MVS (Microverse Simulator)
How to build and use MVS

Project description from CurseForge.

Pick your setup

Extreme Monsters (EM) by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

1 available setups

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

Extreme Monsters (EM) versions and loaders

50 of 50 releases match

Looking for an older file? The official CurseForge project page is in Resources.