Fabric Mods for Minecraft 1.20
Browse 21 free Fabric mods for Minecraft 1.20 — popular picks include Ender Dragon Fight Remastered, Brutal Nightmare : Insane Difficult, Boss Blades 2.0.
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Ender Dragon Fight Remastered
A difficulty increase of Minecraft's final boss, with a focus on a somewhat Vanilla feel.
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.
Boss Blades 2.0
Adds new and unique weapons to every boss in Minecraft!
Piglin Wither
Adds a new piglin wither boss
Wands & Wizardry
Bringing Noita's spell system to Minecraft with fully modular wands, over 60 spells, a new boss fight and more!
Bossmode
Bossmode is the difficulty above hardcore that turns every mob into a boss fight, including passive mobs. Can you survive?
BLACKSOULS II
A hardcore dark-fantasy RPG mod with custom stats, skills, bosses, souls, weapons, accessories, and brutal combat mechanics.
Into The Unkown
Into the Unknown is a Minecraft modpack that introduces new biomes, challenging bosses, and unique game mechanics.
Crunch
Modpack aiming to enhance Survival mode experience by adding new weapons, bosses, mechanics and changing structures along with enchantments and its system
BetterWitherDrop
Wither boss has chances to drop again from 1 to 2 wither skeleton skulls
SQBubliks: Restart 2
This is a COMPLETE rebirth of the SQBubliks: Restart project — the world is now filled with dozens of unique bosses, a deep ability system, advanced RPG mechanics, and a fully revamped, living world generation.
Passive Boss Bars
This is a lightweight, server-side mod for modpack creators that allows you to make boss bars only appear when a boss is aggro. The mod "Mob Boss Bars" is required for this to work.

Skillbound-RPG
Skillbound transforms Minecraft into a classic RPG with level-based skills, improved combat progression, magic, prayers, Slayer tasks, bosses, new equipment, and rewarding unlocks as you advance from levels 1–99.
Boss area woof
BossArea is a Fabric 1.20.1 mod designed for custom adventure modpacks to make fight areas in a RPG style
Hell Guardian
This mod for Fabric 1.20.4 adds a custom new end-game bossfight: The Hell Guardian🔥
Mob AI Tweaks Mod (26.2, 1.20.1) – From Sniffers To Skeletons
Mob AI Tweaks Mod transforms Minecraft’s mob behavior, boss mechanics, and combat dynamics into something far more intelligent and challenging. Features: Wither and Ender Dragon Reworks: Multi-phase combat, enraged states, smarter healing, new visuals, and combat patterns. Elder Guardian Bossified: Beams, dashes, oxygen-draining mines, boss bar, and more. Mini-Bosses: Ravagers, skeleton horsemen, and enhanced Illagers. […]
Combat Effects Mod (1.21.1, 1.20.1) – Trigger Effects When Entities Enter Combat
Combat Effects Mod provides an effects system when entities participate in combat, helping to enhance the combat experience. Supports the use of regex to customize the effect activation conditions. Various effects can be applied to each situation, from boss fights to PvP, creating flexible combat mechanisms. Features: Trigger effects when entities enter combat. Regex support […]
Archon Mod (1.20.1, 1.19.2) – Sorcery, Necromancy, Bosses & More
Archon Mod is a vanilla-style magic mod for Minecraft that introduces mana, magical weapons, spells, necromancy, summonable bosses, new structures, and various magical mechanics. Features: Mana System: Players accumulate mana, which can be used for casting spells, magic weapons, and tools. Mana regeneration speed and capacity can be improved. Magical Crafting: The mod encourages mining […]
Better Bosses Mod (1.20.4, 1.20.1) – Improved Boss Fights
Beating the Ender dragon is considered to be the end of the survival game. But the dragon fight has remained the same for a very long time. The fighting mechanics have remained unchanged for many years. Beating the dragon is no longer a difficult task for experienced players. Better Bosses Mod is here to change that. […]
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.