Fabric Mods for Minecraft 1.20
Browse 89 free Fabric mods for Minecraft 1.20 — popular picks include Tiny Mob Farm Boss Addon, Goety Boss Servants, Harrowing Hells.
Updated daily
Tiny Mob Farm Boss Addon
An unofficial addon for Tiny Mob Farm that extends the Lasso to safely capture Vanilla and modded bosses and complex modded entities without crashing, using custom simulated loot.
Goety Boss Servants
Takes bosses from multiple mods and makes them servants
Harrowing Hells
[NOW SURVIVAL SUMMONABLE] Adds the Cinderscourge, a highly developed boss entity with a diverse arsenal of attacks at its disposal. Usable in mob battles.
Boss Checklist - Friends & Foes Compat
Adds Friends & Foes compatibility to the Boss Checklist mod!
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!
Boss Checklist - Mob AI Tweaks Compatibility
Integrates the Ominous Phantomare boss as well as the reworked Elder Guardian and Ravager from Mob AI Tweaks as entries in the Boss Checklist mod.
DarkenDepths
A Mod extending the Deep Dark and creating a new biome adds a new boss and other cool items
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.
Blobby Mod
Add’s a new biome in the void dimension. It also gives you a new Boss in swamps.

PlasmaMod (UNMAINTAINED)
A fabric mod that adds a full set of new tools and mobs including a boss that is all plasma themed.
Planetary Diaries
Epic Space Mod to extend your two week survival fase! With a brand new dimension with all new PLANETS you can discover over 20+ structures, new resources, blocks, creatures and even custom BOSSES!
Summoner Mod
A mod that adds 4 bosses and 4 structures. Almost no dependencies!
Kevosaurus Rex
Adds new boss - Kevosaurus Rex and Kevocitaptor, it's minion.
The Echo
A terrifying Fabric horror mod featuring system glitches, fake player activities, and sanity day progression. Escape a stalking entity in nightmare dimensions and stabilize the simulation by defeating the final boss, The Echo.
Cube' Em
This mod takes the Rubik's cube to a whole new level and adds it all to Minecraft! We got new structures, new items, a new block, and an OP new sword that you can only get from killing my new boss!
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.
Matadora
Short Description Matadora is a progression-based magic mod for Fabric that adds mana, spell schools, ritual crafting, magical artifacts, mastery progression, bosses, and rare world structures.
Low Tier God
This mod adds Low Tier God into the game as a small boss you can fight.
eclipse-of-divinity
"The Ender Dragon has evolved. Can you survive the ultimate 3-phase boss fight?"

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.
Lalka Mod
Adds Lalka King boss to the End Highlands and a legendary troll sword.
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. […]
Mini-Boss Boss Bars Mod (1.21.1, 1.20.1) – Stop Guessing Mini-Boss Health
Mini-Boss Boss Bars Mod adds health bars to tough enemies that usually hide their health. It works with base game mobs like the Warden and Elder Guardian, plus creatures from many other mods. You just need to hit the monster one time to make the bar show up on your screen. If you run more […]
Marium's Soulslike Weaponry Mod (1.21.1, 1.20.1) – Formidable Bosses
Marium's Soulslike Weaponry Mod is a combat-focused mod for Minecraft that introduces over 20 new weapons, each with unique abilities and epic designs. Beyond weaponry, the mod also adds 15+ new mobs, including 4 bosses, as well as some armor and thematic blocks connected to these fearsome foes. Features: New Weapons – Most weapons are […]
Craftable Totem Of Undying – The Craftables Series Mod (1.21.1, 1.20.1)
The Totem Of Undying is arguably one of the most powerful items in the game. With this item in your hand, you can defeat death. This will specially be useful when dealing with boss mobs and other difficult situations. Obtaining a Totem Of Undying in survival is a difficult task. You'll need to hunt down […]
Anarchy Mod (1.21.1, 1.20.1) – Powerful Minibosses
Anarchy Mod introduces tougher minibosses and rare wandering hostile mobs “Forsaken Adventurers” with unique gear and drops. There are special “Ancient Trials” structures where stronger versions of these minibosses roam, and defeating them gives access to more powerful loot. Features: Several minibosses, each with different combat styles (Juggernaut, Rogue, Mercenary, Fire Archmage, Templar). Rare boss […]
Slayer's Beasts Mod (1.21.4, 1.20.1) – Diverse Mobs and Bosses
Slayer's Beasts Mod is an RPG mod in development, adding a large amount of fantasy content to the game. You will have access to new biomes to explore, new blocks, various dungeons, monsters, and much more. Features: Ant colonies Praying mantis Wither spider Ambient damselflies Ents (Oak & Birch – more to come) White/Black mushrooms […]
Custom Entity Attributes Mod (1.21.8, 1.20.1) – Flexible Mob Attribute System
Custom Entity Attributes Mod lets you add attribute modifiers to entities, either globally or under specific conditions. Attributes can vary by dimension, biome, difficulty, time, or even random chance, giving more depth and unpredictability to mobs. Features: Modify mob and boss attributes to make them stronger or weaker. Apply attributes conditionally based on dimension, biome, […]
Repurposed End Mod (1.21.8, 1.20.1) – New Mobs, Boss Rework, And Endgame Gear
Repurposed End Mod adds to the End dimension with new mobs, a reworked Wither, and powerful post-Ender Dragon upgrades. Features: Adds 3 new End-based mobs: Ender Skeleton. Crying Wither Skeleton. Reworked Wither (spawned with Crying Obsidian). Reworked Wither has more health and new loot. New enchantment: Wither Effect Enchantment (adds wither effect to sword, axe, […]
Mob Origins Mod (1.20.2, 1.20.1) – Many Mob Themed Origins
Mob Origins Mod is an origins addon that currently adds over 10 unique origins, each with different powers and abilities. Features: Totem Chance Spiked Riptide Override Remove Mob Hostility Action on Entity Tame Action on Breed Animal Modify Attack Distance Scale Illuminate Dyeable Model Color Walk on Powdered Snow Mimic Enchant Fog Health Boss Bar […]
Wither Spawn Fix Mod (1.21.1, 1.20.1) – Overcoming Spawning Obstacles
Wither Spawn Fix Mod is designed to address the common issue of small blocks like grass, snow layers, flower pots, and carpets obstructing the spawning of the Wither boss. Features: Prevents small blocks from obstructing Wither spawning, ensuring a seamless summoning process. Makes it easier for players to spawn the Wither without needing to clear […]
Enchanted Monsteroom Mod (1.21.5, 1.20.1) – Harder Fights, Better Loot
Enchanted Monsteroom Mod revamps Minecraft’s basic dungeon rooms into high-stakes battlegrounds. Features: Overhauled dungeon-style monster rooms. Randomized boss encounters and stronger mobs. Environmental hazards and hidden treasures. Greater difficulty and strategic combat. Screenshots: Enchanted Monsteroom Mod Download Links For Minecraft 1.21.5 NeoForge Version: Download from Server 1 – Download from Server 2 For Minecraft 1.21.4 […]
Eldritch End Mod (1.20.1, 1.20) – Lovecraft’s Touch On The End
Eldritch End Mod expands the End with eerie new biomes, a corruption system, and terrifying creatures. Players can explore the barren Hasturian Wastes or the corrupted depths of the Primordial Abyss, each filled with unique hazards. Alongside new blocks, ores, and crafting materials, the mod introduces aberrations and bosses inspired by Lovecraftian horror, including Hastur, […]