Forge Mods for Minecraft 1.21
Browse 38 free Forge mods for Minecraft 1.21 — popular picks include The Lost Castle [NeoForge/Fabric], Medieval Buildings [End Edition], Medieval Buildings - New Structures!.
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The Lost Castle [NeoForge/Fabric]
A gigantic castle that once was the home of a long forgotten civilization
Medieval Buildings [End Edition]
New incredible medieval-style structures for the End!
Medieval Buildings - New Structures!
Add exciting medieval buildings with hidden enemies and treasures to the world!
Castle in the Sky
This mod adds new structure: Castle in the Sky in your world
Medieval Buildings [Nether Edition]
New incredible medieval-style structures for the Nether!
CastleBlocks
Alternative to chunk claiming, build castles instead!
[Retired] Dungeons and Taverns End Castle Standalone
Retired, we decided to retire this project since keeping it up becomes too much of a technical challange for something that is already within main DNT. There be dragons
Loot Integrations: Medieval Buildings & End & Nether
Adds better loot to Medieval Buildings & End structures chests, including modded loot
Rev's Better Structures
A mod that adds immersive, randomly generated vanilla-style structures like ruins, trees, and castles to enhance exploration in 1.16+.
Grim Kingdoms: Lost structures & ruins
Adds Castles - Unique vanilla mobs/ hidden items
Grim kingdoms: Vanilla Edition
Adds Castles : Both mod versions are vanilla, this version simply removes unique vanilla special items
Epic Dungeons: A Roguelike Minecraft
Awesome uniquely varied epic dungeons, from the buried Crystal Castle to the spider-infested Forgotten Sewers. Your traveller's journey begins!
Loot Integrations: The Lost Castle
Adds better loot to The Lost Castle chests including modded loot
Castle Tower
Adds a new Castle Tower to Forest Biomes
Middle Age: castles
This mod adds new Castles in Middle Age style.
Castle Shift
Castle Shift introduces procedurally generated castles with diverse layouts, modular room variations, and dynamic architectural themes — creating a different structure each time.
Epic Knights of the Seven Kingdoms
An addon for Epic Knights which adds various armors, sigils, weapons from Game of Thrones, House of the Dragon and Knight of the Seven Kingdoms and A Song of Ice and Fire Universe by George R. R. Martin in general
Lost eternity
Lost eternity is a world generation mod that adds unique surface buildings and dangerous underground dungeons with traps, enemies, and great loot.
Ember's Castles And Keeps
Adds big new castles and towers with traps, enemies, loot and even parkour challenges!
Middle Magnum Opus
An exploration and building based modpack with numerous dungeons and mystical artifacts scattered throughout the world.
Odysseum
A modpack focused on making Minecraft feel as deep and adventurous as possible. This includes tech, dungeon, dimension, city building, and QoL mods.
Castle and Farm
Farm and bossfight
ChrabPack
A pack centered around the colony building mod Minecolonies, with some dungeon, tech, and magic mods to provide some variety.
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 […]
TDmon Mod (1.21.1, 1.20.1) – More Custom Pokémon
TDmon Mod is an addon for Cobblemon, adding custom Pokémon to the Cobblemon mod. This mod adds 5 new Pokémon to the game. Features: Stunfisk is uncommonly found in the Swamp, while Galarian Stunfisk is in the Taiga forest. All the monkeys can be rarely found in the Jungle. Be sure to check the Castle […]
Valhelsia Structures Mod (1.21.10, 1.20.1) – Abandoned Buildings, Dungeons
Valhelsia Structures Mod focuses on adding new structures to Minecraft's terrain generation, ranging from abandoned buildings to dungeons. Regarding abandoned buildings, we can find various types of houses, castles, and towers, among others. Exploring their ruins or interiors, both in the case of dungeons and abandoned buildings, will allow us to find some rewards. At […]
SI: Refined Obsidian Mod (1.21.1, 1.20.1) – Build a Blast-Proof Castle
SI: Refined Obsidian Mod adds a full set of building blocks made from obsidian, making it work like a complete stone type. This mod introduces cobbled, polished, brick, and tiled variants for building. It also adds a new armor trim material called obsidian dust to customize your gear's look. Features: Turns obsidian into a full […]
DnT End Castle Standalone Mod (1.21.8, 1.21.1) – Giant End Castle
DnT End Castle Standalone Mod is a Minecraft mod that adds a massive, fortress-like structure to the End dimension-without replacing any vanilla structures. Features: End Castle Structure: Generates a giant End City-style castle with an End Portal Frame. Includes custom trial spawners, loot-filled vases, and End Ships. Can be located using Eyes of Ender, similar […]
DnT Woodland Mansion Replacement Mod (1.21.8, 1.21.1) – Discover The New Illager Manor
DnT Woodland Mansion Replacement Mod completely overhauls the standard Woodland Mansion in Minecraft, replacing it with the Illager Manor from Dungeons and Taverns. Features: Replacement of Woodland Mansions: The mod replaces the Woodland Mansions with the Illager Manor, which is much larger and more intricate. New Mansion Layout: Features small, medium, and large rooms, along […]
Dramatic Doors Mod (1.21.1, 1.20.1) – Tall 3×1 Doors
Dramatic Doors Mod adds tall doors to Minecraft, standing three blocks high instead of the usual two. They’re perfect for decoration-because what kind of castle has ordinary doors? Now, players can create grander and more majestic buildings. All standard door types can now be crafted in their taller versions, making this a feature that was […]
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 […]
Tax' Castle Pillager Mod (1.21.1, 1.20.1) – Pillager's Hidden Treasures
Tax's Castle Pillager brings a unique twist to the world of block-building adventures! Crafted by the talented minds of Revvnar and skillfully transformed by Taknax, Tax's Castle Pillager introduces a captivating addition to your Minecraft experience. Within this modification, you'll discover imposing castles inhabited by menacing pillagers, each fortified with hidden underground chambers to explore. […]
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 […]
Revamped Piles Mod (1.21.1, 1.20.1) – Enhancing Minecraft, One Block at a Time
Tired of vanilla Minecraft structures feeling a bit bland? Revamped Piles Mod to the rescue! This mod breathes new life into existing buildings, showering them with intricate details and charming decorations. Imagine blacksmiths with overflowing tool racks, cozy villager huts adorned with hanging baskets, and even revamped dungeons that feel just a touch more perilous. […]
[Retired] DnT End Castle Standalone
Retired, we decided to retire this project since keeping it up becomes too much of a technical challange for something that is already within main DNT. There be dragons
Epic Dungeons: A Roguelike Journey
Awesome uniquely varied epic dungeons, from the buried Crystal Castle to the spider-infested Forgotten Sewers. Your traveller's journey begins!