CurseForge · Minecraft mod
Extreme Randomizer
Think you're good at Minecraft? Or want a completely random Minecraft for a challenge? Try beating it whilst everything is random : biomes, mob spawns, boss spawns and loot. Good luck!
Quick answer
Which Extreme Randomizer release should I use?
Extreme Randomizer extreme-randomizer-1.5.jar targets 26.2 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Extreme Randomizer required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Extreme Randomizer extreme-randomizer-1.5.jar need?
extreme-randomizer-1.5.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Extreme Randomizer without breaking your instance.
Built for Extreme Randomizer extreme-randomizer-1.5.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use extreme-randomizer-1.5.jar. It targets 26.2 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside extreme-randomizer-1.5.jar. It opens that exact file at the source.
About this project
What does Extreme Randomizer add?
It is suggested to start a new world with structures enabled and atleast normal difficulty.
Normal mode (highly encouraged for casual playthroughs, ideal with Biomes o Plenty,Terralith
and Repurposed Structures) :
- Random biome generator in all dimensions including the Nether, End and in caves.
- Random mob spawns, daytime has a 1/40 chance to spawn a hostile mob.
- Chests contain random loot.
- Mob spawners found in caves, mineshafts etc. will cycle through random hostile mobs.
- Villages can spawn everywhere! In every dimension as well as in caves.
Complete Chaos mode (for all the true GAMERS, can you defeat THE Enderdragon in the End?):
- Random biome generator in all dimensions including the Nether, End and in caves.
- Random mob spawns including bosses during day and nighttime.
- Chests contain random loot.
- Killed mobs will also drop random loot.
- Mob spawners found in caves, mineshafts etc. will cycle through random hostile mobs.
- Villages can spawn everywhere! In every dimension as well as in caves!
- Higher levels of enchantment available!
This mod is currently only on Fabric and the latest version is compatible with Biomes o Plenty,Terralith
and Repurposed Structures.
Project description from CurseForge.
Pick your setup
Extreme Randomizer by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Extreme Randomizer versions and loaders
extreme-randomizer-1.5.jar
extreme-randomizer-1.8.1.jar
30 Aug 2026
Extreme-randomizer-1.4.jar
29 Aug 2026
Extreme Randomizer 1.3
Extreme Randomizer 1.3.jar
29 Aug 2026
Extreme Randomizer 1.1.jar
29 Aug 2026
extreme-randomizer-1.0.2.jar
29 Aug 2026
Looking for an older file? The official CurseForge project page is in Resources.