Minecraft Java 1.20 Mods
Browse 168 free mods for Minecraft Java 1.20 — popular picks include [SMS]Spirit Mediumship Spell - Iron's Spells Addon, Overgrown's Origins: Wither Unleashed, BossCraft Respawn : Unofficial Port.
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[SMS]Spirit Mediumship Spell - Iron's Spells Addon
This mod adds fresh spells to Iron's Spells 'n Spellbooks that let you summon all kinds of wizards, tough vanilla and Iron's Spells 'n Spellbooks foes, and even boss mobs from mods like Cataclysm.
Overgrown's Origins: Wither Unleashed
Dare to face the ultimate challenge in Minecraft? Upgrade your game with Origins: Wither Unleashed, a pack designed to transform the Wither boss battle into a ferocious and thrilling experience reminiscent of the Bedrock Edition's intensity.

BossCraft Respawn : Unofficial Port
Unofficial Port of BossCraft 1.3.2
Gateway of Doom
Throw a Devil Eye to open a configurable combat gateway. Survive random or fixed waves, bosses and timed challenges for rewards—or suffer debuffs. Includes auto gateways, custom mobs, profiles, admin menus, commands, diagnostics, plus a stable add-on API.
Paladin's Oath
This Mod Adds Mobs Bosses Armor Weapons And Abilities To your Minecraft World Can You Be the Best Paladin?
Shuumatsu no Valkyrie: Project Ragnarok
This mod is based off the manga and anime Shuumatsu no Valkyrie: Record of Ragnarok. It has skills, weapons, enchantments, transformations, races, abilities, dimensions. biomes, structures, bosses, mobs, stats, and most importantly, BUDDA
Boss Keys
Conquer Monster Spawners using new Dungeon Keys
vtubruh LOTR Mobs
RPG mod that adds new structures, mobs, weapons, armor, bosses, pets, magic, quests, and achievements. It will suit not only LOTR fans but also regular content-mods seekers for their modpacks!
Strange Aeons: Sword and Sorcery
A dark-fantasy survival RPG where you become the monster—or hunt it—while earning power through cursed dimensions, ancient dungeons, and brutal bosses.
Daily Boss x Annoying Villagers
Compatibility between Daily Boss and AnnoyingVillagers.
Final Adversaries
This mod is heavily inspired by Elden Ring's gameplay. Immerse yourself in a small story revolving around the monk Netero, who has been sealed away. To free him, you must embark on a journey to different NPCs, structures and bosses.
Fiw Bosses
A data-driven custom boss framework for Forge, NeoForge and Fabric Define multi-phase bosses and minions with configurable abilities entirely through JSON no coding, no restarts.
honkai_craft
Inspired by Honkai Impact 3rd's settings, incorporating mod elements such as weapons, bosses, and terrain corruption
New Utopia
New Utopia tries to give the Player a better Game experience with many new Additions to make the overall Gameplay more enjoyable including new Mobs & Bosses, overhauled Dimensions and a variety of magical and tecnical Improvements.
Elarion
A polished 700 modded massive modpack that adds tons of new structures, mobs, tools, biomes, bosses, quests and many other things to make minecraft much more immersive
Contoro's Ores+
This mod adds ores and new tools and armor, but with a twist. The player needs certain leveled tools to get stronger ores. This mod also adds a new dimension and a new boss.
The Dulling - A Final Challenge
Adds an eldritch threat to your world, with Bosses, Dimensions, Magic, & more!

BossCraft Respawn : Overlord
Unofficial Port of BossCraft and BossCraft2 Content
Chaos World
Add a list of weapons with great abilities. A struction and a powerful boss.

Warden bossfight
Turns a player into a boss with warden and sculk-based abilities
Lijm's Expanse
Lijm’s Expanse expands Minecraft with firearm manufacturing, vehicle assembly, magic, spell tomes, new bosses, and even cheesemaking. A vast new expanse of possibilities awaits!
Knighthood and Wizardry
A WIP mod that adds custom items, weapons, and bosses.
Daily Boss x Aquamirae
Compatibility between Daily Boss and Aquamirae.
Valiant RPG
A Faithful Adventure RPG Experience. | 500+ Quests, Including Lore & Progression. | Progress Through Custom-Made Skill Trees. | Defeat 30+ Powerful Bosses. | Mob Scaling Difficulty. | Temperature & Thirst.
Autcraft Adventure
Welcome to a world where magic thrives, ancient ruins whisper forgotten secrets, and powerful bosses guard unimaginable treasures. AutCraft Adventure invites players to embark on a thrilling journey through a land shaped by fantasy, mystery, and challenge.
Wands & Wizardry
Bringing Noita's spell system to Minecraft with fully modular wands, over 60 spells, a new boss fight and more!
Boss Companions!
Adds pets from the bosses you fight.
Mocha's Complicated Dungeon
Adds a difficult randomly generated linear dungeon with unique enemies and bosses from Mocha's Complicated Bosses
all the horror
This modpack is a combination of all the mods 9, horror mods like cave dweller and the man from the fog. With new mobs from alex mobs and legendary creatures and bosses. While also adding new weapons from scorched guns 2 to add new weaponry for fighting,
Worlds of Mobs
A world exploration RPG with lots of dungeons and bosses
Schools of Magic: Reforged
A D&D-inspired magic mod featuring customizable spellcasting, advanced brewing & alchemy, powerful bosses, and a magical world.
Vizer
New strong bosses,weapons and much more!

Calamity
Calamity is an expansive overhaul project that introduces challenging new bosses, unique mechanics, and a rich layer of lore to the core experience.
GahoodRPG
Adds RPG elements to minecraft which includes classes, armor, weapons, bosses, and more.
BigBrainCrafts
New Biomes, Mobs and Bosses / more Vanilla+ and Magic
Valor's Legacy
Valor's Legacy thrusts you into a medieval fantasy realm with epic bosses, magic, and diverse biomes. Battle monsters, solve puzzles, and complete NPC quests for rewards. Discover hidden secrets and explore rich, mythical dimensions.