Minecraft Java 1.20 Mods
Browse 19 free mods for Minecraft Java 1.20 — popular picks include Dungeon Now Loading, The Cosmic Spokespersons, Sky Lands.
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Dungeon Now Loading
Explore the vast, challenging dungeons that are loaded into your world! This mod introduces new dungeons, along with tricky, but fair bosses to fight at the end of the dungeon.
The Cosmic Spokespersons
A mod focusing on special effects, dimensions, combat and bosses, with some plots.
Sky Lands
Adds new sky islands biomes, blocks, bosses, weaponery and much more
The Dulling - A Final Challenge
Adds an eldritch threat to your world, with Bosses, Dimensions, Magic, & more!
Wands & Wizardry
Bringing Noita's spell system to Minecraft with fully modular wands, over 60 spells, a new boss fight and more!

Dimension Update
The mod adds new bosses and op wepoins

Calamity
Calamity is an expansive overhaul project that introduces challenging new bosses, unique mechanics, and a rich layer of lore to the core experience.
Cozy Living S-Up
Machinery, Aesthetic Automation, Plant Magic, Pets, Building, Furniture, Cooking, Farming, Exploration, Dimensions, Dungeons, Mini-Bosses, Artifacts, Fishing, Weapon Enhancing, New Ores, Armor, Storage Systems, and so much more.
Depths and Ores
Depths and Ores adds many new ores, items, armor, weapons, blocks, mobs, bosses and so much more! This mod was made using Mc Creator
LuckyGiant Mod
The LuckyGiant Mod adds new bosses, mobs, a dimension like The End, biomes, structures, and materials. Players must defeat weaker versions of him to collect materials for a ritual to summon the final LuckyGiant.
Dyable BossBars
dye bossbars different colors
Worlds O' Plenty
A curated modpack featuring all sorts of experiences!: - Adventure! - Decorations! - Bosses and Mobs a plenty! And of course... *drum rolls* Plenty of Worlds to explore!
motball craft
3 dimensions and a goofy boss at the end
Fluorite: The Realm of Dreams
Adds a terraria-inspired sky dimension to Minecraft filled with bosses, a new progression system beyond Netherite and unique environmental mechanics.
iMode
iMode adds witchery, custom spells, new mobs, 4 new bosses, an infinite dungeon dimension and makes game progressively harder. Also adds a level system. Everythig is toggleable in configurations.
Monstrum Relics
This mod haves aggresive mobs, bosses and structures.
Caged Mobs Mod (1.20.1, 1.16.5) – Cages to Contain Any Entity in The Game
Caged Mobs Mod will allow us to craft a cage with which we can contain any creature in the game, including animals, hostile creatures, and even bosses. These cages can also be used to decorate our constructions or to lock up our pesky friends. These cages will allow us to keep entities under our control, […]
Divine RPG Mod (1.21.1, 1.20.1) – Eight New Realms to Conquer
Divine RPG Mod transforms Minecraft into a massive RPG adventure. This mod adds eight new dimensions to explore, each with its own secrets and challenges. You will encounter over 115 new mobs and powerful bosses to battle. It also includes hundreds of new items, weapons, armor sets, and decorative blocks to discover and use. Features: […]
Legionary Mod (1.20.1) – Battle a Massive Stone Boss in the Nether
Legionary Mod adds new piglin enemies and items inspired by Minecraft Legends to the Nether. This mod gives you new weapons to craft, shiny gold decorations to build with, and a giant stone boss to fight. Features: The Unbreakable Boss: Fight a massive new late-game boss that starts out petrified in stone. New Cudgel Weapon: […]