Minecraft Java 1.21 Mods
Browse 193 free mods for Minecraft Java 1.21 — popular picks include MythicDungeons, Pirate Adventures, ScalingMobs.
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MythicDungeons
Procedural party dungeons with queue visibility, run previews, persistent player profiles, bosses, loot, and weekly leaderboard progression.
Pirate Adventures
Pirates is a huge project for the Minecraft game in the form of a DataPack. By installing the required ResourcePack and the DataPack itself, you get a large number of new mobs, items, blocks, mechanics, and bosses.
ScalingMobs
Adjusts the stats of bosses and mobs, multiplied by the number of players on the server.
SMPGracePeriod
Disable PvP during server grace period with customizable duration, BossBar countdown, commands, and inter-plugin API.
Grace999
GracePlugin provides configurable, per-world grace periods with PvP and mob damage protection, boss bar countdowns, sound alerts, and customizable safe zone regions with flag-based protections.
Create: Cogs & Cataclysm
Immerse yourself in Create: Cogs & Cataclysm, a modpack where mechanical ingenuity meets high-stakes adventure. Built around the Create mod’s extensive automation and L_Ender’s Cataclysm's impressive dungeons and boss battles.
DeatButThreeReload
Prevent players from having to respawn multiple times to defeat some bosses
Vital
A mod which adds clean, minimal, but readable SHADER COMPATIBLE health bars to each mob in the game (optionally replacing boss bars with colour coded bars per active boss too).
Diary of an 8-Bit Warrior
Experience Aetheria like a Terrarian! Complete quests, kill bosses, and level up your skills! Maybe you'll even meet Runt and his friends…
Harry's Hostile Expansion
Adds many different hostile mobs, mechanics, structures & bosses.
Nice Blockhead Mobs
Adds cute, little Mobs (and 1 new Boss) made out of Miniblocks. No Ressource Pack required.
EzCountdown
Run flash sales, timed events, and launches with stunning countdowns - ActionBar, BossBar, Titles & Placeholders!
Bosscraft 2: Remake
Bosscraft 2: Remake is an unofficial project inspired by Sthullen's famous mod for older and outdated versions of Minecraft. This project takes the iconic mechanics of the classic mod and integrates them into modern versions of the game.
Ivar's Bosses
Ivar's Bosses is a mod that introduces formidable bosses to the game, featuring unique attack patterns and special summoning rituals. These ancient creatures will unleash their wrath upon anyone who dares disturb their eternal slumber.
RogueCraft Plus
An addon to the RogueCraft datapack! Adds new abilities, structures and a boss!
Theosis
Plugin-ready RPG survival with loot, gems, bosses & biomes. Thesis-style modularity. Multilanguage Apotheosis-inspired
![[WIP] DragonFist Legacy](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/modrinth/275866.webp)
[WIP] DragonFist Legacy
(INCOMPLETE and WIP) Adds martial artists to Epic Fight, along with new content, structures, and mini-bosses throughout the world.
Deepcraft
A hardcore Minecraft mod with new ore, weapons, bosses, mobs, a unique dimension, haunting music, and forgotten secrets waiting to be uncovered.
Giant Boss
Makes the unused giant into a boss fight and adds a new food as a reward.
![Palamobs [ Discontinued ]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/modrinth/279751.webp)
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.
Limitbreak
Minecraft transformed into a roguelite wave-survival RPG with classes, relics, bosses, and permanent progression.
Bossbar Lib
A simple bossbar library allowing for per entity bossbars
EzFlyTime
Sell flight time with customizable vouchers, and make flying players look awesome with highly configurable particles. Also includes configurable bossbar for countdown and has PlaceholderAPI support.
Bosses'Rise Hide Dodge
A small addon to the Bosses'Rise mod that automatically hides the dodge roll icon when not in danger.
Alternative Twilight(Remastered)
Added more mechanisms to the bosses of Twilight Forest, making it more time to prepare for them
Daily Boss - More Config
Add more config for Daily Boss
Ranold's Boss Music (Datapack)
This is a work in progress resourcepack/datapack that adds boss music to bosses in minecraft!
Anti Boss Grief
Prevents the Ender Dragon and the Wither from giving your world a makeover.
VkMaceControl
VkMaceControl gives full control over Mace crafting with global limits, timed locks, and complete exploit protection (including auto-crafters).Track every craft with boss bars & titles, log abuse attempts, and send real-time Discord alerts on Paper 1.21+.
Ominous Wither
Adds a thrilling boss fight experience, summoned by building the Wither with Bad Omen.
oCode-AnarchiaBosses
Create custom bosses with skills, attributes, equipment and more!
![Elexir [CSD]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/curseforge/466805.webp)
Elexir [CSD]
Step into ELEXIR - This modpack is magic, automation and adventure. Here you can explore the world as well as magic or mechanisms to make life easier. Ancient artifacts, bosses other worlds are created for gameplay variety
koper_mod
A chaotic Minecraft mod with unique bosses, broken armor sets, and a corrupted dimension a little unbalanced but fun as hell.
ZApocalypse
ZApocalypse is a Fabric mod for 1.21.1 that turns every night into a zombie wave, with elite variants, blood nights, and a Zombie Lord boss. As the apocalypse escalates, zombies evolve unique abilities while other hostile mobs retreat deep below Y=25.
Document 17
Document 17 is a mod that adds in; 30+ characters (armors) two double chest's worth of items, a whole assortment of bosses to fight. and new- interesting ways to play the game. along with several base superpowers for players to use. want superheros? here.
The Mob
Mob Framework | YAML | Boss Phases | Radar HUD | AutoSpawn | Player Stats | 1.21.+