Minecraft Java 1.20 Mods
Browse 17 free mods for Minecraft Java 1.20 — popular picks include Brutal Nightmare : Insane Difficult, The Day Of The Beast, Cursed Fate: Cursed Tweaks (New Boss Fights!).
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Brutal Nightmare : Insane Difficult
Minecraft too easy? Try this mods with nearly 40 modifiers - settings new mini bosses, which made minecraft become hard & insane. Enhanced hostile mobs' AI & Angry passive mob. Zombie place/break blocks. Skeleton,Spider,Creeper,Enderman.
The Day Of The Beast
Introduces The Devil, a new boss fight in the game.

Cursed Fate: Cursed Tweaks (New Boss Fights!)
This is an Add-On for the Minecraft mod Jujutsu Kaisen Cursed Fate Mod! This mod is solely an extension for the original mod by ImNotHURAGAN and does not work independently.

Sporeadds
Mod that adds 4 survivors origins and 1 boss origin based of an infected from the spore mod
KinglyBosses
KinglyBosses is a Minecraft plugin for managing custom bosses. It allows summoning powerful bosses, generating custom items, and enabling player spectating. It also offers features like boss lists, spawn zone management, and easy configuration reloading.
Refined Bossbars
A refined look of minecraft bossbars
the hiker
the hiker, a scary mod that adds a new boss named the hiker, it also add a new biome, the hikers forest. and different variants of the hiker!
Piglin Wither
Adds a new piglin wither boss
The Dulling
A Cosmic Horror Story with Bosses, Dimensions, Magic, and more!
Bossmode
Bossmode is the difficulty above hardcore that turns every mob into a boss fight, including passive mobs. Can you survive?
Dino Rumble
A very expansive and quality dino mod adding food items bosses and more!
Mob Heart: Killing Mobs Give you 1 permanent Heart
Get permanent extra hearts by killing mobs! Every mob type gives +1 heart ONCE, works across deaths, fully automatic. Includes passive, neutral, hostile, and bosses!
Integrity Bossfight Spawner
Makes Integrity from The Broken Script spawn on a custom day!

Great Soup
This mod is focused on adding soups with various effects. It also adds bosses, new mechanics, biomes, and glue, but the most important thing is the soups.
The Rake Horror Mod (1.20.1) – Night Stalking Boss Hunter
The Rake Horror Mod adds The Rake, a dangerous night creature inspired by popular Roblox horror games. It focuses on fair but intense survival combat and nighttime hunting mechanics. Features: Basic Behavior Spawns only at night Lives in a special cave structure (its base) Leaves the cave at evening and returns at sunrise Normally stays […]
Gundam Mech vs Horror & Boss Mods
Contains the Gundam Mech from Pomkot Mech Expansion Pack, along with Horror & Boss Mods to fight against. The Mechs cannot be crafted, only able to spawned in Creative!
The Retch: Trauma's Echo
(NOTE - ON HOLD) The Retch is an adaptive psychological horror boss mod featuring relentless mob and strict anti-cheese mechanics. CONTENT WARNING: This mod features themes of severe psychological torment, trauma, and unyielding persecution from my youth.