Minecraft Java 1.21 Mods
Browse 43 free mods for Minecraft Java 1.21 — popular picks include EliteMobs, Gravestone Dungeons Data Pack, KingdomsX.
Updated daily
EliteMobs
Minidungeons, Arenas, Bosses, Custom Loot, Quests, MMORPG progression & more!
Gravestone Dungeons Data Pack
This data pack adds dozens of small and massive dungeons, bosses, custom loot, magic spells, many custom weapons, enchantments and much more!
KingdomsX
Battles for might, land and glory. A complex international land & team management plugin.
TheDungeons
A custom dungeon with multiple functionality. Monsters, access levels and much more! [1.17-1.21.x]
Ember's Castles And Keeps
Adds big new castles and towers with traps, enemies, loot and even parkour challenges!
Outer End Wilds
Adds Two New End Biomes inspired by Minecraft Dungeons
Deltapack
A deltarune datapack adding content from dark fountains and dark worlds to the roaring knight. As well as items and spells like snowgrave and the shadow mantle.
Dungeons, Creatures and Classes (DnD)
A D&D inspired RPG mod with Mobs, structures, classes and a lot more!
Shades (Hollow Knight)
A mod that adds the 'shade' mechanic from Hollow Knight.
Deformation Dimension
Nerfs elytra by adding an entirely new dungeon-like dimension you need to complete to obtain one.
Dungeon Finder
A server side command to locate the nearest spawners to a player!
Mobs Active Ride│生物主動騎乘
Let the mobs actively ride to form knights, instead of only spawning knights when mobs are generated.│讓生物主動騎行形成騎士，而不是只在生物生成時產生騎士。
Jonshu's desert dungeons
This data pack introduces a new dungeon pool, the Desert Dungeon! This is a desert-themed structure that is a dangerous area & suggested to enter with iron or diamond gear
Enter the Bungeon
Completely rewrites Minecraft into a Roguelike Dungeon Crawler
Shades
A mod that adds the 'shade' mechanic from Hollow Knight.
![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.
End Unleashed
No resource pack required! Discover new dragons, mobs from Minecraft Dungeons, and more! Optimized for SMP & faithful to vanilla mechanics.
Mobo's Structures
Pirate Ships! Castles! Dungeons! Towers and More! If you're an explorer, this datapack is for YOU!
Mr_ChibisMMO Dungeons
Dungeons are an addon on to existing MMO pack, Mr_Chibi'sMMO! Allowing a diverse experience adding dungeons into game, to explore, loot and dodge traps with many more!!
Minecraft Dungeons Enchantments
This datapack DOUBLES the total amount of available minecraft enchantments!
FullXaos_RPG
⚔️ RPG skills & dungeons 🌋 Portal dungeon RPG ⚡ Optimized RPG plugin 🏰 MCMMO-style RPG 🌀 Skills & portals RPG
MobSpawner
Easily create simple dungeons or mob arenas with an optimized plugin!
Dungeons, Creatures and Classes (DnD): REMADE
A D&D inspired RPG mod with Mobs, structures, classes and a lot more!
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.
MedievalPlus
Adds a medieval theme to minecraft that complements vanilla. This adds forgeries which change weapon stats and behaviour, new QoL items for horses and new mob variants using said forgeries.
Evan's Vanilla+ 2
A Vanilla+ Modpack for 1.21! It adds new mob mechanics, new world generation, dungeons, mobs, and items to Minecraft!
In the Journeys
The mods expand Minecraft further with new ores, mobs, biomes, dungeons, bosses, and magic to discover.
Hard Spawners
Makes spawners spawn mobs if broken, primarily made for use with dungeon mods
ProgressionDungeonRW
Replayable dungeon runs with modular generation—built for RPG progression and reward loops.
Hollow Knight: Silkcraft
Welcome to Silkcraft, this mod aims to bring the kingdom of Pharloom from Silksong into minecraft!
Enhanced Spawners: Chambers of Control
Enhanced Spawners: Chambers of Control lets players upgrade and customize mob spawners using survival items, with full redstone control and spawn egg integration — all without commands or GUIs. Designed for clean, technical mob farms and dungeon systems.
MSRdungeons
MSRDungeons is a Paper/Purpur plugin for **resettable wave-based dungeons** with MythicMobs integration, team participation rules, rewards, cooldowns, and schematic restore.
Improved Structures & Dungeons
The combination of all minecraft Structure & Dungeons Data Pack
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.
Speedrun Scientology
Explore a new dimesion containing an infinite dungeon where you can explore, loot, and fight monsters as you try to escape.
Ravenborne
Class based medieval fantasy rpg mod based by Ravenborne theme!