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Minecraft Java 1.21 Mods

Browse 111 free mods for Minecraft Java 1.21 — popular picks include ReniDrags Molten Mayhem!, Castle and Farm, Palamobs [ Discontinued ].

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ReniDrags Molten Mayhem!
1.21.1neoforge

ReniDrags Molten Mayhem!

Explore the new biome that brings dungeons, dimensions, a custom boss, cool new custom items and of new tools!! Get on this mod baby!! Its super duper cool (source trust me bro)

1.4kdownloads
Castle and Farm
1.20.1forge

Castle and Farm

Farm and bossfight

1.4kdownloads
Palamobs [ Discontinued ]
1.21.1neoforge

Palamobs [ Discontinued ]

An add-on for Palamod Recreated and Custom NPC. The different mobs will finally be able to burst into your adventures with their different dungeon styles, bosses, and NPCs.

931downloads
Vanilla Over The Top
1.21.11fabric

Vanilla Over The Top

This project adds multiple vanilla+ mods which add: An expansion to illagers, a much bigger and taller nether with new structures and bosses, a new way to get to the end, along with the end being reworked and also minecraft dungeons styled enchanting.

902downloads
re;Tensura
1.21.1neoforge

re;Tensura

🧬 ᴿᵉ;tensura — A TTIGRAAS Minecraft SMP featuring factions, PvP, skills, nations, bosses, dungeons, and constant progression. Active staff, balanced gameplay, events, and a custom 1.21.1 modpack. Join: https://discord.gg/Ya6BA38uUY

894downloads
CrazyMC - A Special Apocalypse | Apocalypse with Quests!
1.21.1neoforge

CrazyMC - A Special Apocalypse | Apocalypse with Quests!

A chaotic Minecraft adventure featuring zombie hordes, powerful bosses, firearms, magic, advanced technology, massive dungeons, and endless progression.

883downloads
Massive MMO
1.21.10forge

Massive MMO

A fantasy MMO-style modpack featuring RPG progression, unique classes, skill leveling, dungeons, bosses, and an open-world adventure experience. Designed for cooperative multiplayer with performance upgrades for smooth gameplay.

784downloads
Explorisa
1.21.1neoforge

Explorisa

This modpack is centered around becoming stronger as you explore new structures, biomes, and even whole new dimensions, all the while defeating strong bosses, in a medieval/fantasy rpg setting.

734downloads
Daily Boss X Dungeons and Combat
1.20.1

Daily Boss X Dungeons and Combat

compat daily boss with dungeon and combat

701downloads
Klarian Chronicles Magic & Steel
1.21.1neoforge

Klarian Chronicles Magic & Steel

Fantasy RPG modpack tailored for private server combining Better combat, legendary bosses, dragons, four magic paths, MineColonies kingdom building, Create automation, vampirism, and rich decorative building content.

614downloads
Better of Fabric 3
1.21.1fabric

Better of Fabric 3

Offers the latest & best of Vanilla+ Fabric mods on 1.21 | Explore breathtaking biomes & structures | Fight new bosses | Enter new dungeons & dimensions | Vanilla will feel empty after this

600downloads
Fantastic Dungoneer
1.21.1neoforge

Fantastic Dungoneer

Explore a big randomly generated dungeon crawl filled with traps and bosses. :)

598downloads
Ends Multiverse
1.21.1forge

Ends Multiverse

Bosses, dungeons, dimensions, vehicles and so much more

577downloads
Frog Central
1.21.1forge

Frog Central

Frog Central is a modpack with plenty to do. Plenty of bosses, regions, dungeons, loot, and slice of life mods come together to make a modpack for every player. FC is rounded to appeal to every type of player from fighters to farmers to flower pickers.

504downloads
MCtale
1.21.1fabric

MCtale

Inspired by Hytale’s style, featuring colorful fantasy visuals, exploration-focused gameplay, RPG progression, dungeons, bosses, and a strong sense of adventure.

496downloads
Grandia Dungeons
1.21.1neoforge

Grandia Dungeons

A dark fantasy roguelike dungeon adventure with classes, bosses, cursed loot, magic, traders and procedural floors.

464downloads
RealmsQuest
1.20.1forge

RealmsQuest

RealmQuest - Fabric, designed for players who love epic adventures with original dungeons, bosses, and spells. It features expanded biomes, new tools.

427downloads
SpellCraft - Magic World
1.21.1forge

SpellCraft - Magic World

A Harry Potter-inspired magic mod adding wands, spells, wizard dueling, potions, a leveling system, magical creatures, a wizarding village with traders, and dungeons — including a boss lair and a dementor-guarded prison.

389downloads
Craft Colonies
1.21.1neoforge

Craft Colonies

Build your own medieval colony, automate factories with Create, face epic bosses, and explore a vast world full of unique biomes, structures, and adventures.

373downloads
Ashenfall
1.21.1neoforge

Ashenfall

Turning Minecraft into a crazy RPG, where you can upgrade with skills, conquer dungeons, slay bosses and so much more

352downloads
Pixeltheris
1.21.1neoforge

Pixeltheris

Epic RPG Modpack 1.21 – explore dungeons, master magic, face challenging bosses, build and decorate, and enjoy enhanced combat, progression, and quality-of-life features. Optimized for multiplayer and private servers.

339downloads
Runeforge Chronicles
1.21.1neoforge

Runeforge Chronicles

Runeforge Chronicles is an epic Minecraft modpack blending RPG progression and tech. Explore huge dungeons, level up skills, defeat bosses, and build massive factories with the Create mod. The perfect mix of magic, adventure, and automation!

319downloads
Grandia Dungeons [Modpack]
1.21.1neoforge

Grandia Dungeons [Modpack]

A dark fantasy dungeon roguelike modpack with bosses, classes, cursed loot, magic, custom UI and atmospheric progression.

275downloads
Robot Legion
1.21.1fabric

Robot Legion

Build a steampunk robot army. Workers automate jobs while combatants fight beside you through three boss dungeons. Trade with engineer villagers for rare parts.

260downloads
Warhaven
1.21.5fabric

Warhaven

Warhaven is an adventure-packed guild modpack for Minecraft! Explore new biomes, conquer dungeons, battle bosses, and build your guild to dominate the world. ⚔️🔥

260downloads
In the Journeys
1.21.1neoforge

In the Journeys

The mods expand Minecraft further with new ores, mobs, biomes, dungeons, bosses, and magic to discover.

251downloads
dungeoncraft-r
1.21.1fabric

dungeoncraft-r

DungeonCraft is a modpack that brings the Minecraft Dungeons experience into Minecraft with new camera, dungeons, animations, and bosses.

173downloads
The Bob Mod!
1.21.1neoforge

The Bob Mod!

The Bob Mod adds, you guessed it, Bob! Bob can fly around his bob castle, and his portal room to the Bob dimension. The Bob chicken is also added, and is a brand new boss to fight!

98downloads
MOAR Tools
1.21.1neoforge

MOAR Tools

MOAR Tools is a progression and combat expansion mod that adds three new gear tiers, two dungeon systems, a full boss encounter, and a suite of custom mobs all designed around a dark, End-themed aesthetic.

86downloads
EpicMobs
1.21spigot

EpicMobs

mobs, boss, dungeon, skills

79downloads
Be happyy
1.21.1neoforge

Be happyy

🎮 Be Happy is a NeoForge 1.21.1 modpack for long-term survival with friends or solo. Build flying machines with Create Aeronautics, automate factories with Mekanism & AE2, fight Cataclysm bosses, explore new biomes & YUNG's dungeons — not a vanilla pack!

54downloads
Kaizo Knight Boss Theme for Ender Dragon
1.9

Kaizo Knight Boss Theme for Ender Dragon

the vanilla boss theme is kinda lame ngl

52downloads
ThicMobKai - Dungeon, Boss and Mob RPG System
1.16spigot

ThicMobKai - Dungeon, Boss and Mob RPG System

A premium dungeon, boss, and mob progression plugin with EN/VI support.

42downloads
Shwarma Adventures
1.21.1neoforge

Shwarma Adventures

An adventure-focused Minecraft modpack featuring exploration, bosses, dungeons, enhanced world generation, and a balanced progression system.

34downloads
Tenebris - Advanced Dungeon System
1.21spigot

Tenebris - Advanced Dungeon System

Free advanced dungeon system with bosses, keys, rewards, stats, MythicMobs and PlaceholderAPI suppor

34downloads
Professor Porker's Legendary Dungeons Data Pack (1.21.1)
1.21.1

Professor Porker's Legendary Dungeons Data Pack (1.21.1)

Professor Porker's Legendary Dungeons Data Pack extends Cobblemon with large challenge structures inspired by iconic creature landmarks. It fills your world with massive multi-floor ruins full of tough wild encounters and hidden puzzle chambers. Players must manage team health, solve environmental puzzles, and battle through monster rooms to reach high-level legendary bosses. The data pack […]