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Minecraft Java 1.21 Mods

Browse 25 free mods for Minecraft Java 1.21 — popular picks include Medieval Buildings [End Edition], Grim Kingdoms: Lost structures & ruins, Grim kingdoms: Vanilla Edition.

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Medieval Buildings [End Edition]
1.21.5neoforge

Medieval Buildings [End Edition]

New incredible medieval-style structures for the End!

18Mdownloads
Grim Kingdoms: Lost structures & ruins
1.21.8fabric

Grim Kingdoms: Lost structures & ruins

Adds Castles - Unique vanilla mobs/ hidden items

249kdownloads
Grim kingdoms: Vanilla Edition
1.21fabric

Grim kingdoms: Vanilla Edition

Adds Castles : Both mod versions are vanilla, this version simply removes unique vanilla special items

176kdownloads
NMI - server side mods only
1.21.3fabric

NMI - server side mods only

This is a collection of over ✨150+✨ server side mods that enhance your gameplay with voice chat, factions, economy, seasons, dungeons, buildings, mobs and much more. 🌌

11kdownloads
Ember's Castles And Keeps
1.21.1forge

Ember's Castles And Keeps

Adds big new castles and towers with traps, enemies, loot and even parkour challenges!

7.8kdownloads
Vanilla+ Expansion
1.21.11fabric

Vanilla+ Expansion

This mod adds a few features using vanilla blocks, items, and mobs including structures like an illusioner castle, a variant oak, and new recipes.

5.3kdownloads
Mobo's Structures
1.21.4

Mobo's Structures

Pirate Ships! Castles! Dungeons! Towers and More! If you're an explorer, this datapack is for YOU!

873downloads
Etar Experience
1.21.11fabric

Etar Experience

Welcome to Etar Survival! A definitive Vanilla+ pack focused on exploration, building, and adventure. Discover new biomes, dungeons, and mobs. Includes the official Etar Experience resource pack for a beautiful, cohesive look.

835downloads
Minecraft Dungeons Pets
1.16

Minecraft Dungeons Pets

A resourcepack that adds most of Minecraft Dungeons' Pets to the base game.

577downloads
Microtato
1.21.1neoforge

Microtato

Casting spells, running away from monsters and building tiny castles, at least there are no scary machines to hunt you.

78downloads
Revoted Wildfire Mod (1.21.1) – Nether Fortress Frenzy Overhaul
1.21.1neoforge

Revoted Wildfire Mod (1.21.1) – Nether Fortress Frenzy Overhaul

Revoted Wildfire Mod adds the Wildfire (also known as Mob D / Hovering Inferno from the 2017 mob vote) and reworks Nether Fortresses with larger structures, special events, and new fire-themed crafting content. Features: Nether Fortress Changes Nether Fortresses generate much larger Castle sections can contain Blaze spawners Spawner platforms are marked with Caged Fire […]

Craft Spawner Mod (1.21.11, 1.20.6) – Adds A Crafting Recipe For The Spawner
1.21.11fabric

Craft Spawner Mod (1.21.11, 1.20.6) – Adds A Crafting Recipe For The Spawner

Spawners are generated in dungeons in your world. They have the ability to spawn a specific mob type indefinitely and therefore are useful for building beginner mob grinders. In the vanilla game, spawner blocks have no crafting recipe. Craft Spawner Mod is here to change that. As the name suggests, this mod adds a crafting […]

Dungeons and Taverns Desert Temple Replacement Mod (1.21.8, 1.21.1)
1.21.8forge

Dungeons and Taverns Desert Temple Replacement Mod (1.21.8, 1.21.1)

Dungeons and Taverns Desert Temple Replacement Mod changes the look of desert temples in the game. Giant Desert Ruins, filled with sand, suspicious sand, graves, TNT traps, hidden passages, and mobs, replace the usual desert temples. A custom desert village with unique houses and workstations surrounds these ruins. Desert Ruins can be found using villager […]

Epic Dungeons Mod (1.21.1, 1.20.1) – A Roguelike Minecraft
1.21.1forge

Epic Dungeons Mod (1.21.1, 1.20.1) – A Roguelike Minecraft

Epic Dungeons Mod adds huge, exciting dungeons to your Minecraft world, filled with unique rooms, tough monsters, and amazing loot! Each dungeon is procedurally generated, meaning no two dungeons are identical. You can explore places like the Crystal Castle, Forgotten Sewers, and Molten Asylum, all with different enemies and surprises around every corner. Features: Massive […]

Medival Writer House
1.21.4neoforge

Medival Writer House

this mod adds the medieval book writer mansion

51kdownloads
Integrated Dungeons Arise Data Pack (1.21.1, 1.20.1) – Conquer Massive
1.21.1

Integrated Dungeons Arise Data Pack (1.21.1, 1.20.1) – Conquer Massive

Integrated Dungeons Arise Data Pack overhauls structures from When Dungeons Arise by rebuilding them with popular modded blocks and balanced loot tables. It blends classic fortresses into your world with smooth terrain blending and cleaner mob spawners. The data pack replaces modified enemies with vanilla mobs while boosting spawner range to keep battles fast and […]

Katters Structures Dungeon Data Pack (26.2, 1.21.1) – Raid Deadly Dungeons
1.21.1

Katters Structures Dungeon Data Pack (26.2, 1.21.1) – Raid Deadly Dungeons

Katters Structures Dungeon Data Pack adds dungeon builds and tough encounters from Katters Structures into your world. This pack fills your underground and skies with traps, monsters, and valuable treasures to find. You can explore ruined towers, hidden dens, and sky shrines without changing base game block types. It gives survival players fresh combat challenges […]

Medieval MC MMC3 Modpack (1.21.1) – Explore Magic Monsters And Medieval
1.21.1

Medieval MC MMC3 Modpack (1.21.1) – Explore Magic Monsters And Medieval

Medieval MC MMC3 Modpack turns your world into a massive medieval fantasy RPG where you can choose your own race and build your skills. You will explore a beautiful world filled with giant castles, dangerous dungeons, and magical lands. Every step of your journey is packed with new things to discover, from powerful spells to […]

Sengoku Jidai Japanese Overhaul Mod (1.21.1) – Build Samurai Castles
1.21.1

Sengoku Jidai Japanese Overhaul Mod (1.21.1) – Build Samurai Castles

Sengoku Jidai Japanese Overhaul Mod transforms your entire Minecraft world into a historical Japanese landscape. It replaces regular biomes with beautiful seasonal forests, towering mountains, and relaxing hot springs. This mod adds new weapons, blocks, and creatures straight from Japanese mythology. You can build traditional castles and fight unique monsters in a completely new environment. […]

Cult of Azazel Mod (1.21.1, 1.20.1) – Battle New Bosses in a Massive Nether
1.21.1

Cult of Azazel Mod (1.21.1, 1.20.1) – Battle New Bosses in a Massive Nether

Cult of Azazel Mod adds a massive mansion dungeon to the Nether for you to explore. It fills your world with new monsters, hidden mazes, and tough boss fights that reward you with special items. Features: Generates a huge dungeon inside the Nether that is split into three different zones. Pits you against a powerful […]

Dungeons And Taverns Woodland Mansion Overhaul Mod (26.2, 1.21.1) – Overhauled Structures
1.21.1

Dungeons And Taverns Woodland Mansion Overhaul Mod (26.2, 1.21.1) – Overhauled Structures

Dungeons And Taverns Woodland Mansion Overhaul Mod is a mod that completely overhauls the vanilla Woodland Mansion into a full-fledged dungeon combined with a cozy and inviting tavern. This mod transforms this rare structure into a premium salvaged one with new rooms, dangerous mobs, rich loot, and detailed design, keeping the vanilla spirit but enhancing […]

Awesome Dungeon The End Edition Mod (1.21.11, 1.20.1) – New Structures
1.21.11

Awesome Dungeon The End Edition Mod (1.21.11, 1.20.1) – New Structures

Awesome Dungeon The End Edition Mod adds structures/dungeons to your dimension the END. Dungeons have mobspawner and chests with loot. Features: Castle Evoker. Hard castle. Pill. Palace. Pyramid. Screenshots: Awesome Dungeon The End Edition Mod Download Links

Awesome Dungeon Nether Mod (1.21.11, 1.20.1) – More Structures
1.21.11

Awesome Dungeon Nether Mod (1.21.11, 1.20.1) – More Structures

Awesome Dungeon Nether Mod adds structures/dungeons to your Nether. Dungeons have mobspawner and chests with loot. Features: Obsidian Palace Obsidian House Square Tower Blaze Giant Crimson tree Accum Screenshots: Obsi Palace Obsi House Giant Crimson Tree Accum Tower Blaze Awesome Dungeon Nether Mod Download Links

Awesome Dungeon Mod (1.21.11, 1.20.1) – Better Default Dungeon
1.21.11

Awesome Dungeon Mod (1.21.11, 1.20.1) – Better Default Dungeon

Awesome Dungeon Mod adds structures and dungeons to your world. The dungeons are designed with mob spawners and chests containing loot, providing resources and opportunities to interact with the environment. Features: The giant jungle tree. Abandoned oak palace. Better default temple jungle. The Swamp temple. Desert temple Husk. The Z thower. Mushroom abandonned. House Lodge. […]

Lost Souls Mod (1.21.1, 1.20.1) – Turn City Ruins Into Deadly Dungeons
1.21.1

Lost Souls Mod (1.21.1, 1.20.1) – Turn City Ruins Into Deadly Dungeons

Lost Souls Mod works with The Lost Cities mod to make buildings much more challenging. It turns some buildings into 'haunted' locations, filling them with extra and stronger mobs. These powerful monsters have more health and damage, and they will spawn even if the area is well-lit. To clear a haunted building, you have to […]