Minecraft Java 1.21 Mods
Browse 513 free mods for Minecraft Java 1.21 — popular picks include Waypoints and Bossbars, ScalingMobs, Warden bossfight.
Updated daily
Waypoints and Bossbars
Adds raiders, trial mobs, skeleton horsemen and bosses to the locator bar and gives trial spawners and skeleton traps bossbars.
ScalingMobs
Adjusts the stats of bosses and mobs, multiplied by the number of players on the server.
Warden bossfight
Turns a player into a boss with warden and sculk-based abilities
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.
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.
Deltarune Project
This mod adds various elements of Deltarune chapters 1 and 2 to Minecraft. There are many new materials and bosses added to the game.
Nice Blockhead Mobs
Adds cute, little Mobs (and 1 new Boss) made out of Miniblocks. No Ressource Pack required.
Winter Drop Ruined
Adds the Krakentilus boss, 2 new Nautilus variants, and some spear related content
Colossus Boss
Giant boss formed from the environment and attacking and hurling chunks of environment at you!
Undermagic II
Progression expansion featuring flashy weapons, structures, and a challenging boss fight
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).
![THE SKELETON BOSSES | CUSTOM MOBS [1.20 - 1.21.1]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/spiget/42348.webp)
THE SKELETON BOSSES | CUSTOM MOBS [1.20 - 1.21.1]
Incorporate custom bosses with custom rewards, create a new boss dynamic
OHPS10 Boss
Adds the boss "Obama Harry Potter Sonic 10"
The Ice Warrior
datapack that add an ice theme mid-game boss
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Bosscraft 2: Remake is an unofficial project inspired by Sthullen's famous mod for older and outdated versions of Minecraft.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.
PixelColonies: Arcane Journeys
Dimension and Exploration Modpack with very hard Bosses and other Creatures, as well as many diffrent dimensions and Quests
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)
TYAZVR Spider-Man
This mod is a Spiderman mob at add new things to do Bosses to fight this and is not the best but try
ZKQ – Zombie King Quest (Boss Fight + Structures + Progression)
Adds a powerful Zombie King boss, custom structures, Frux ore progression, and epic weapons for adventure-focused survival gameplay.
Tower Of Gods
This datapack adds the Tower of Gods (inspired from zelda wind waker) along with a custom boss: Gohdan (from zelda wind waker). No resource pack
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.
Boss Checklist - Mob AI Tweaks Compatibility
Integrates the Ominous Phantomare boss as well as the reworked Elder Guardian and Ravager from Mob AI Tweaks as entries in the Boss Checklist mod.
Rick's Roll
Adds rick astley as a boss and a rickroll music disk.
Theosis
Plugin-ready RPG survival with loot, gems, bosses & biomes. Thesis-style modularity. Multilanguage Apotheosis-inspired
Temples & Templates
Adding more boss encounters and tools to spice up your minecraft playthroughs!
The World of Crackers
A new cracker biome with a new boss!
![[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.
![[MobArena Addon] HavenArena - Extra Customizable Features](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/spiget/46976.webp)
[MobArena Addon] HavenArena - Extra Customizable Features
Add extra customizable features to your MobArenas, including new boss abilities and monster glow.
Peaceful Alternative
Blocks all hostile mob spawns (incl. spawners, bosses, summon command) and replaces hostile- & animal-kill-based recipes with peaceful alternatives in the future - full non-combat progression.
BossLand v2.3
Boss Land extends vanilla gameplay by adding 15 unique custom bosses across multiple tiers.
Giant Boss
Makes the unused giant into a boss fight and adds a new food as a reward.
Boss Checklist DivineRPG Addon
Adds DivineRPG bosses to Boss Checklist.
Limitbreak
Minecraft transformed into a roguelite wave-survival RPG with classes, relics, bosses, and permanent progression.
![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.