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Minecraft Java 1.21 Mods

Browse 23 free mods for Minecraft Java 1.21 — popular picks include Medieval Buildings [Nether Edition], Rev's Better Structures, Castle Tower.

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Medieval Buildings [Nether Edition]
1.21.9neoforge

Medieval Buildings [Nether Edition]

New incredible medieval-style structures for the Nether!

7.9Mdownloads
Rev's Better Structures
1.19.2forge

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+.

289kdownloads
Castle Tower
1.21.8neoforge

Castle Tower

Adds a new Castle Tower to Forest Biomes

36kdownloads
Ice Castle
1.21.9

Ice Castle

This datapack Ice Castles, a new structure that can be found in cold biomes.

2.3kdownloads
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
Ben&BänzCraft
1.21.4fabric

Ben&BänzCraft

A new Minecraft Experience based on Vanilla Friendly Mods. Explore the World with many new Biomes and Dungeons with your new Weapons like Hammers, fighting Staffs and more. Build a nice Base with the help of some new Blocks. Have Fun!

766downloads
PovertyCraft
1.21.1fabric

PovertyCraft

PovertyCraft is a modpack focused on exploration, light RPG elements, and immersive building. It adds new biomes, structures, dungeons, nothing overly complex. Don't take the name seriously, it's a joke between friends.

221downloads
RevivalRpMods
1.21.8fabric

RevivalRpMods

A Minecraft 1.21.8 modpack for roleplay servers. Adds new biomes, dungeons, RPG skill trees, building blocks, and tech mods for survival and adventure.

102downloads
Repurposed Structures Better Nether Fortress Compat Datapack Resource Pack (1.21.1, 1.20.1)
1.21.1

Repurposed Structures Better Nether Fortress Compat Datapack Resource Pack (1.21.1, 1.20.1)

Repurposed Structures Better Nether Fortress Compat Datapack Resource Pack brings compatibility between Repurposed Structures and Yung's Better Nether Fortress mod. It replaces the standard Jungle Fortress with a huge fortress built in Yung's fortress style. This pack combines the lush green look of jungle ruins with grand castle rooms, winding hallways, and hidden loot chambers. […]

Twilight Forest Aurora Palace Regeared Data Pack (1.21.1, 1.20.1)
1.21.1

Twilight Forest Aurora Palace Regeared Data Pack (1.21.1, 1.20.1)

Twilight Forest Aurora Palace Regeared Data Pack replaces the old ice castle in the Twilight Forest mod with a giant, beautiful new structure. It turns the Snow Queen's home into a huge challenge filled with different rooms, traps, and better loot. You can explore a much larger palace that looks amazing from the outside and […]

Evocraft Loading Screen Resource Pack (1.21.1) – Stunning Nature and Castle
1.21.1

Evocraft Loading Screen Resource Pack (1.21.1) – Stunning Nature and Castle

Evocraft Loading Screen Resource Pack adds custom images for the Loading Backgrounds mod. It replaces the plain dirt screen with pretty nature scenes while your Minecraft world loads. You get to look at cool castles, mountains, and sunsets instead of a blank screen. Features: Displays bright sunrises and calm sunsets while you wait for the […]

TDmon Mod (1.21.1, 1.20.1) – More Custom Pokémon
1.21.1fabric

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 […]

Mo' Structures Mod (1.21.8, 1.20.1) – Flying Castle, Jungle Pyramids, & More
1.21.8fabric

Mo' Structures Mod (1.21.8, 1.20.1) – Flying Castle, Jungle Pyramids, & More

Mo' Structures Mod is a structures mod with loot & spawners in some structures, to increase the RPG aspect of Minecraft. Features: Adds a variety of structures like jungle pyramids, floating castles, pirate ships, and more. Each structure comes with its own backstory, enhancing the RPG aspect of the game. Includes fun mini-dungeons for players […]

Wetland Whimsy Mod (1.21.1, 1.20.1) – Overhauls Swamps With New Visuals and Content
1.21.1neoforge

Wetland Whimsy Mod (1.21.1, 1.20.1) – Overhauls Swamps With New Visuals and Content

Wetland Whimsy Mod transforms swamps with extensive new content. It introduces the Marsh biome, diverse flora like Pennywort and Cordgrass, and unique fauna such as the Swamp Spider. It adds Limestone and Bald Cypress woodset for building, alongside Wetland Ruins and Swamp Dungeons filled with loot. Ruins may contain hidden dangers, offering a challenging exploration […]

MysticMons Data Pack (1.21.1, 1.20.1) – Models and Animations for Cobblemon
1.21.1

MysticMons Data Pack (1.21.1, 1.20.1) – Models and Animations for Cobblemon

MysticMons Data Pack includes models and animations for Pokemon currently not available in the base mod. It also enables Legendaries to spawn in the wild. Features: Pokemons are currently in this pack: Yveltal – Spawns in Dark Forests at night Buzzwole – Spawns in Swamps Roodikee, Corvisquire, Corviknight – Spawns in Swamps, Mountains and Forests […]

Heart Crystals Mod (1.21.1, 1.20.1) – Permanently Boost Player Health
1.21.1fabric

Heart Crystals Mod (1.21.1, 1.20.1) – Permanently Boost Player Health

Heart Crystals Mod introduces Heart Crystals, special consumable items that permanently increase player health. Heart Crystals are crafted using Heart Crystal Shards, which can be found as loot in various structures such as Abandoned Mineshafts, Dungeons, Buried Treasure, and End City Treasures. Players can also discover shards in Desert Pyramids, Jungle Temples, Woodland Mansions, and […]

NotActuallyTerry's Tropicraft Mod (1.21.1, 1.20.1) – Tropical Adventures Await
1.21.1neoforge

NotActuallyTerry's Tropicraft Mod (1.21.1, 1.20.1) – Tropical Adventures Await

NotActuallyTerry's Tropicraft Mod introduces a vibrant and immersive tropical dimension to your Minecraft world. This mod allows players to explore lush rainforests, build sandcastles on expansive beaches, and dive into deep oceans. Features: Tropical Dimension: Discover a new tropical world filled with unique biomes and landscapes. Dense Rainforests: Explore thick, verdant forests teeming with new […]

Tec And Nature
1.21.1neoforge

Tec And Nature

explore or make your base with Tec and nature, bringing new dungeons and machines!

1.7kdownloads
FF's Terra Forge Modpack (1.21) – Explore Massive Biomes And Dungeons
1.21

FF's Terra Forge Modpack (1.21) – Explore Massive Biomes And Dungeons

FF's Terra Forge Modpack fills your world with fresh landscapes, deep caves, and upgraded structures while keeping the classic gameplay you know. You can travel across vast wilderness areas, uncover ancient ruins, and gather unique building blocks for your base. Every dimension offers new sights to see and dangerous places to conquer. Features: Vast World […]

Middle Age Castles Mod (1.21.11, 1.20.1) – Trade with Castle Villagers
1.21.11

Middle Age Castles Mod (1.21.11, 1.20.1) – Trade with Castle Villagers

Middle Age Castles Mod introduces four medieval castle structures that generate naturally across different biomes. Three of these large fortresses serve as peaceful homes for villagers, giving you lively settlements to visit during your travels. The fourth stronghold is occupied by hostile bandits that attack anyone who gets close. Each castle features a custom build […]

Brave Structures Mod (1.21.4) – Find Rare Loot Inside New Medieval Buildings
1.21.4

Brave Structures Mod (1.21.4) – Find Rare Loot Inside New Medieval Buildings

Brave Structures Mod adds medieval buildings to your Minecraft world. It fills empty biomes with new places to explore and loot. You can find hidden treasures like golden apples and enchanted books inside these buildings. This addition gives you more reasons to travel far away from your base and makes your survival journey more rewarding. […]

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. […]

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. […]