MYSTIC'S
MONSTROSITY
The Ultimate Minecraft Modded Completion Modpack
Up to 15,000 mods. One legendary journey.
Welcome, Adventurer
Prepare yourself for the ultimate Minecraft experience
Welcome to Mystic's Monstrosity 1.12.0 in 1.20.1 version of MM, only has 700+ mods, but is way more stable. All other builds have 1000+ mods. This is a monster of a modded completion modpack. Completion means completing all achievements in the game! This features too many mods to name here.
"Your PC will cry. Your RAM will weep. But the adventure? Worth every gigabyte."
Choose Your Monstrosity
Five builds. Five levels of insanity.
v1.20.1 (v1.12.0)
Minecraft 1.20.1Recommended for most players
v1.19.2 Forge
Minecraft 1.19.2Solid modded experience
1800 Mods Build
Minecraft 1.19.2For the dedicated
5000 Mods Build
Minecraft 1.19.2Your PC was warned
15000 Mods Build
Minecraft 1.19.2We asked if we could, not if we should.
Can Your PC Handle It?
Spoiler: probably not for the 15K build.
Minimum
v1.20.1 (700+ mods)
Recommended
1000-1800 mod builds
Extreme
5000-15000 mod builds
⚠️ Builds with 1000+ mods require 27GB+ RAM. 64GB storage required for all versions. SSD strongly recommended for larger builds. Your RAM sticks WILL file a restraining order.
What's Inside
A glimpse into the chaos that awaits
Completion Gameplay
Complete every single achievement. All of them.
New Dimensions
Hundreds of dimensions to explore and conquer.
Mobs & Bosses
Thousands of new creatures lurking in every corner.
Tech Mods
Create, Mekanism, Applied Energistics, and more.
Magic Mods
Ars Nouveau, Botania, Thaumcraft, and beyond.
Building & Decor
Thousands of blocks to build your dream world.
World Generation
Completely overhauled terrain and biomes.
Quality of Life
JEI, inventory sorting, waypoints, and more.
Custom Quests
Guided progression through the madness.
Journey Map
Never get lost (in the overworld, at least).
Performance Mods
Optimized so your PC suffers slightly less.
Shader Support
Make the monstrosity beautiful.
Getting Started
Five steps to modded glory
Visit adoptium.net to download Temurin JDK 17 or later. Make sure to select the correct version for your operating system. During installation, allow it to set JAVA_HOME.
Download CurseForge from curseforge.com. Other supported launchers include MultiMC, Prism Launcher, and ATLauncher. CurseForge makes modpack installation easiest.
Select the version that matches your hardware capability. v1.20.1 with 700+ mods is recommended for most players. Import the downloaded zip into your launcher.
In your launcher settings, find JVM Arguments or Memory Allocation. Set minimum and maximum RAM. For v1.20.1: 8-12GB. For 1000+ mod builds: 27-32GB. Never allocate ALL your system RAM — leave 4-8GB for your OS.
First launch will take significantly longer as mods initialize. This is normal — grab a coffee. Subsequent launches will be faster. If you encounter issues, check the FAQ or join our Discord.
💡 Pro Tips
- • Install on an NVMe SSD for dramatically faster load times
- • Add JVM args: -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200
- • Close Chrome and other RAM-hungry apps before launching
- • First launch takes 5-15 minutes. Don't panic. Go touch grass.
Mod Ecosystems
Interconnected systems working in chaotic harmony
See the Monstrosity
Pixel previews of the adventure ahead
Epic Builds
New Dimensions
Boss Fights
Tech Setups
Magic Rituals
Underground
FAQ
Questions you're too afraid to ask (but should)
Each mod loads assets, classes, and data into memory. With 1000+ mods, that adds up fast. The 15K build basically turns your PC into a space heater that occasionally renders blocks.
We strongly recommend v1.20.1 (700+ mods). It's the most stable, requires the least RAM (8GB+), and still provides an incredible modded experience. Start there and scale up when your wallet recovers from the RAM upgrade.
The v1.20.1 build? Possibly, if your laptop has decent specs and an SSD. The 5000+ mod builds? Your laptop would achieve flight from the fan speed alone. Not recommended.
Yes, but server requirements match or exceed client requirements. You'll need a beefy dedicated server with adequate RAM allocation for the mod count you're running.
Open an issue on our GitHub repository with your crash log, mod version, and a description of what happened. You can also report in our Discord support channel for faster responses.
It means the goal is to complete ALL achievements across ALL mods. This is a massive undertaking that will keep you busy for hundreds (or thousands) of hours.
Technically yes, but proceed at your own risk. Many mods have interdependencies, and removing or adding mods can break progression, cause crashes, or corrupt your world. We've carefully balanced these mod lists.
Different versions cater to different hardware capabilities and play preferences. Not everyone has 64GB of RAM, and not everyone needs 15,000 mods. We offer options so everyone can find their sweet spot of chaos.
Need Help?
We've got your back (and your crash logs)
"I'm always happy to help! Reach out on Discord and I'll personally assist you. Whether your game crashes, your RAM catches fire, or you just want to chat about mods — I'm here."
— Mystic