Minecraft Java 1.21 Mods
Browse 189 free mods for Minecraft Java 1.21 — popular picks include Cobblemon Dungeon, Pirate Adventures, MythicDungeons.
Updated daily
Cobblemon Dungeon
Create and edit custom Cobblemon dungeons directly in-game with areas, gates, trainer encounters, boss battles, Join NPCs, rewards, and JSON-based advanced customization.
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.
MythicDungeons
Procedural party dungeons with queue visibility, run previews, persistent player profiles, bosses, loot, and weekly leaderboard progression.
SMPGracePeriod
Disable PvP during server grace period with customizable duration, BossBar countdown, commands, and inter-plugin API.
ScalingMobs
Adjusts the stats of bosses and mobs, multiplied by the number of players on the server.
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
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!
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).
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Bosscraft 2: Remake is an unofficial project inspired by Sthullen's famous mod for older and outdated versions of Minecraft.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.
RogueCraft Plus
An addon to the RogueCraft datapack! Adds new abilities, structures and a boss!
Deepcraft
A hardcore Minecraft mod with new ore, weapons, bosses, mobs, a unique dimension, haunting music, and forgotten secrets waiting to be uncovered.
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.
Giant Boss
Makes the unused giant into a boss fight and adds a new food as a reward.
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
![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.
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.
Ranold's Boss Music (Datapack)
This is a work in progress resourcepack/datapack that adds boss music to bosses in minecraft!
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.
Anti Boss Grief
Prevents the Ender Dragon and the Wither from giving your world a makeover.
Bosses'Rise Hide Dodge
A small addon to the Bosses'Rise mod that automatically hides the dodge roll icon when not in danger.
Ominous Wither
Adds a thrilling boss fight experience, summoned by building the Wither with Bad Omen.
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+.
![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
oCode-AnarchiaBosses
Create custom bosses with skills, attributes, equipment and more!
koper_mod
A chaotic Minecraft mod with unique bosses, broken armor sets, and a corrupted dimension a little unbalanced but fun as hell.
Daily Boss - More Config
Add more config for Daily Boss
stupid horror mod
this is a joke horror mod that adds a scary biome, where you have to kill scary creatures to collect scary souls to later craft into a boss altar and fight the boss. there is an ingot with good weapons that can take down most of the scary creatures.
Alternative Twilight(Remastered)
Added more mechanisms to the bosses of Twilight Forest, making it more time to prepare for them
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.