Minecraft Java 1.21 Mods
Browse 1,194 free mods for Minecraft Java 1.21 — popular picks include Ashenfall, More Ore -, Pixeltheris.
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Ashenfall
Turning Minecraft into a crazy RPG, where you can upgrade with skills, conquer dungeons, slay bosses and so much more
More Ore -
Mod that adds more content and more ore to minecraft. New content includes bosses, dimensions, weapons.
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.
Boss Forge
This is a bossing plugin with fully customizable bosses and drops
World's Whisper
Conquer shape-shifting bosses and craft elemental gear in a realm ruled by four mystical seasons.
Rare Item Hunter | Rare loots, powerful bosses and epic upgrades
Bosses | New Enchantments | New Crafts | New Mechanics | Fully Configurable
ModernBosses
🟣 ModernBosses: The Corrupted Awakening ModernBosses is a lightweight, powerful, and highly customizable Minecraft plugin (1.20.x) that allows server administrators to transform any vanilla hostile mob into a formidable Corrupted Boss.
Mine RPG
This is combination of mods to add more content to Minecraft including bosses, biomes, creatures. This is more RPG adventure style while keeping all vanilla. No extra metals or materials are added on this pack.
Cool Bosses & Crafts I - Data Pack
A new datapack focused on adding several new craftings, new enchants and new music disks and alot more in the future.
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!
Diorite's Better Guardians
Makes Elder Guardians an actual boss fight
TNTNuke
This plugin allows players to spawn a massive TNT explosion at once, with a countdown timer and a visual bossbar showing progress. It also supports cooldowns and permissions to control who can use it.
Elysian Horizon
A beautiful modpack with a lots of custom mobs, bosses, tools and mechanicts
![BossBound Relics [drops & weapons]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/modrinth/102501.webp)
BossBound Relics [drops & weapons]
New weapons as a reward for beating bosses !
Stoneworks Boss Timer
A simple QoL mod for Stoneworks Nether that adds a Boss Timer to the HUD
CustomHitboxLib
A powerful Forge 1.20.1, NeoForge 1.21.1 library that adds true multipart hitboxes to any entity! Override vanilla's single-square limitation and create complex bosses with precise collision using simple JSON Datapacks or the developer API.
NexusMobs
NexusMobs is a comprehensive RPG plugin that transforms your Minecraft server by introducing over 20 unique bosses
AnnounceX
📢 Professional announcements with custom durations, colors, sounds & particles! Title + BossBar modes. Perfect for events! ⚡
♂️ TheMob ✦ Advanced Custom Mobs & Bosses
Mob Framework | YAML | Boss Phases | Radar HUD | AutoSpawn | Player Stats | 1.21+
SuperRH bosses
This mod adds some uh cool stuff like a very strong boss and a total red biome
MythicTotem
Create your own BOSS totems! - Support unlimited size 3D totems!
UHC+
A data pack that adds in UHC, but with additional features like augments, special items/equipment, and bosses that spawn in during the game.
FriedZane
A mod that adds new items and bosses that relates to the minecraft youtuber "FieryZane" and adds new awesome features to make minecraft more destructive and fun!
MrAuctionsBid
MrAuctionsBid is a comprehensive auction plugin that allows players to create and participate in item auctions with an intuitive BossBar interface.
LyttleTab
Lightweight Tab & Bossbar Plugin
Summoners
Turns ordinary mobs into mini-bosses that summon reinforcements.
AntiLogout
A lightweight anti-combat-log plugin for 1.21.x. Features a 20-second BossBar countdown and automatic death penalty for players who logout during combat.
LootShare
Tired of divvying up loot after bossfights?
![Grandia Dungeons [Modpack]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/modrinth/115224.webp)
Grandia Dungeons [Modpack]
A dark fantasy dungeon roguelike modpack with bosses, classes, cursed loot, magic, custom UI and atmospheric progression.
Valentine's Girlfriends
Adds new interactive npc's and bosses!
Cool Bosses & Crafts I - Resource pack
The CBC1 resource pack that acompanies the CBC1 Data Pack
Player boss bar
2 datapacks (Singleplayer and Multiplayer) add boss bar for players
⭐ ProMB | ProMythicBoss
bosses, mob, mythicmobs, equipment, auto, timer, auto spawn
idleProgress
🛡️ Level up stats, master RPG classes, and explore a world full of quests! 🌲 Realistic landscapes and new bosses.
Corrupted Horizons
Add Mini-Bosses! Increase Difficulty, Earn Rewards And Begin Your Adventure! 🧭⚔️
NeoAdventure
Just a modpack for quick play with buddies, lots of different bosses, multiplayer loot system, less focus on item storage or structure building, more focus on magic and item upgrading...