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Minecraft Java 1.21 Mods

Browse 21 free mods for Minecraft Java 1.21 — popular picks include Awesome Dungeon Ocean edition - Forge, Awesome Dungeon Ocean edition - Fabric, Awesome Dungeon Ocean.

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Awesome Dungeon Ocean edition - Forge
1.21.9forge

Awesome Dungeon Ocean edition - Forge

This mod adds dungeons to your ocean. (🆕 NEW Structure added 3 boat)

9.6Mdownloads
Awesome Dungeon Ocean edition - Fabric
1.21.11fabric

Awesome Dungeon Ocean edition - Fabric

This mod adds dungeons to your ocean.

3.3Mdownloads
Awesome Dungeon Ocean
1.21.10forge

Awesome Dungeon Ocean

This mod adds dungeons to your ocean, like boat, ruin..

1.7Mdownloads
Lios Seafaring Dungeons
1.19.3fabric

Lios Seafaring Dungeons

Complex Underground & Oceanic dungeons!

157kdownloads
Medieval Empires Official
1.21.1neoforge

Medieval Empires Official

Build, battle, and rule your empire! 🏰⚔️ Lead villagers, forge armies, and wage war across ages—from swords to muskets. Face rival kingdoms, sea beasts, and dragons in a world where only the strongest leaders survive. Will you rise… or burn?

12kdownloads
Sunken Skeletons
1.21.9fabric

Sunken Skeletons

Adds the aquatic Sunken Skeleton from Minecraft Dungeons.

3.3kdownloads
AquaLib
1.21

AquaLib

AquaLib is the foundational core library engineered to power the Aqua Kingdoms ecosystem and its suite of advanced oceanic features. It provides a high-performance framework for handling complex data and immersive underwater mechanics while ensuring best

84downloads
Dungeons and Taverns Ocean Monument Overhaul Data Pack (26.2, 1.21.1)
1.21.1

Dungeons and Taverns Ocean Monument Overhaul Data Pack (26.2, 1.21.1)

Dungeons and Taverns Ocean Monument Overhaul Data Pack replaces the vanilla Ocean Monuments with an expansive and challenging structure known as the Trident Trial Monuments. This overhaul introduces new mechanics, enemies, and rewards, providing a fresh and engaging underwater experience. Features: Removes all Vanilla Ocean Monuments and replaces them with Trident Trial Monuments. Can be […]

Stunning Statues Mod (1.21.1, 1.20.1) – Historic Decorations
1.21.1fabric

Stunning Statues Mod (1.21.1, 1.20.1) – Historic Decorations

Stunning Statues Mod adds 17 elegant stone and moss-covered statues for decoration, with 5 uncommon ones found in buried treasure, shipwreck treasure, dungeons, and underwater ruins. Rare statues have a yellow tag, glow slightly, and blink eyes when placed, with an advancement when all 5 are collected. Each statue has a moss variant that can […]

When Dungeons Arise Seven Seas Mod (1.21.10, 1.20.1) – Conquer The Depths
1.21.10fabric

When Dungeons Arise Seven Seas Mod (1.21.10, 1.20.1) – Conquer The Depths

When Dungeons Arise Seven Seas Mod is an addon for When Dungeons Arise, introducing massive ocean-themed structures to explore. This expansion enriches the underwater and maritime experience with new locations, challenges, and treasures, making ocean exploration more rewarding. Features: Works alongside When Dungeons Arise, enhancing world generation without disrupting the original mod’s balance. Discover sprawling […]

Dungeons and Taverns Ocean Monument Replacement Mod (1.21.8, 1.21.1)
1.21.8fabric

Dungeons and Taverns Ocean Monument Replacement Mod (1.21.8, 1.21.1)

Dungeons and Taverns Ocean Monument Replacement Mod completely transforms how ocean monuments work in Minecraft. Instead of the usual ocean monuments, this mod generates "Trident Trial Monuments," large structures surrounded by smaller monuments connected by glass bridges. These monuments are filled with challenges, including trial spawners that summon guardians, drowned, and elder guardians. The central […]

Seamless Prismarine Bricks Resource Pack (1.21.1, 1.20.1) – Texture Pack
1.21.1

Seamless Prismarine Bricks Resource Pack (1.21.1, 1.20.1) – Texture Pack

Seamless Prismarine Bricks Resource Pack just enhances the look of prismarine bricks by giving them a seamless texture, inspired by Minecraft Dungeons. This change removes the visible grid-like pattern between bricks, making walls and floors look smoother and more natural. Whether you're building underwater temples or decorative structures, this subtle tweak helps create a more […]

Seven Seas Mod (1.21.1, 1.20.1) – When Dungeons Arise Expansion
1.21.1neoforge

Seven Seas Mod (1.21.1, 1.20.1) – When Dungeons Arise Expansion

Seven Seas Mod expands When Dungeons Arise, adding breathtaking ships and mind-bending underwater dungeons to your Minecraft world. Explore intricate galleons, plunder hidden loot, and conquer oceanic fortresses – all built with the same customizable spirit as its predecessor. Dive into datapacks and vanilla tweaks to tailor your nautical odyssey to your heart's content! Seven […]

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 […]

Awesome Dungeon Ocean edition - Neoforge
1.21.9neoforge

Awesome Dungeon Ocean edition - Neoforge

This mod adds dungeons to your ocean. (🆕 NEW Structure added 3 boat)

165kdownloads
Big Globe - Hopo Better Underwater Ruins Compatibility
1.21

Big Globe - Hopo Better Underwater Ruins Compatibility

Compatibility between Big Globe and Dungeon Crawl that ensures the correct generation of personalized world structures.

4.1kdownloads
Integrated Seven Seas Data Pack (1.21.1, 1.20.1) – Battle Hostile Pirate Ships
1.21.1

Integrated Seven Seas Data Pack (1.21.1, 1.20.1) – Battle Hostile Pirate Ships

Integrated Seven Seas Data Pack overhauls the structures from When Dungeons Arise – Seven Seas. It decorates ship interiors using blocks and items from Create, Quark, Supplementaries, and Farmer's Delight. The data pack adds more monsters inside each vessel and balances chest loot for survival gameplay. Every ship now spawns only in deep ocean waters […]

A Game of Blocks Mod (1.21.1) – Rule Your Own Medieval Kingdom
1.21.1

A Game of Blocks Mod (1.21.1) – Rule Your Own Medieval Kingdom

A Game of Blocks Mod turns your world into a massive medieval kingdom where you can build armies and rule lands. It drops you into a custom map filled with snowy fields, large castles, and deep oceans instead of normal random terrain. You start by picking a background and religion, which changes how you begin […]

No Mans Land Mod (1.21.1) – Roam Through Upgraded Biomes and Encounter New
1.21.1

No Mans Land Mod (1.21.1) – Roam Through Upgraded Biomes and Encounter New

No Mans Land Mod transforms your entire Minecraft world with fresh biomes, better animals, and beautiful landscapes. It takes the normal places you know, like forests and oceans, and makes them look much better with careful details. You will find brand-new areas to explore, extra plants everywhere, and updated dungeons hidden underground. The mod also […]

DnT Ocean Monument Overhaul Mod (26.2, 1.21.1) – Monuments Worth Exploring
1.21.1

DnT Ocean Monument Overhaul Mod (26.2, 1.21.1) – Monuments Worth Exploring

DnT Ocean Monument Overhaul Mod reimagines Ocean Monuments as massive, modular dungeons packed with treasure, danger, and variety. It transforms the once-static structures into sprawling, randomized labyrinths that reward exploration and challenge. Features: Ocean Monuments become rare jigsaw structures, similar in rarity to Woodland Mansions Each monument is split into 7 sections, each with 4 […]

Awesome Dungeon Ocean Mod (1.21.11, 1.20.1) – Underwater Dungeons & Temples
1.21.11

Awesome Dungeon Ocean Mod (1.21.11, 1.20.1) – Underwater Dungeons & Temples

Awesome Dungeon Ocean Mod adds the spawning of underground structures beneath the water in Minecraft. Essentially, these are regular dungeons with cool loot, but with one key twist-they are all flooded. That means looting them won’t be as easy; you’ll need to come prepared. Underwater, they look mysterious and enigmatic, as if an ancient civilization […]