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Fabric Mods for Minecraft 1.21

Browse 40 free Fabric mods for Minecraft 1.21 — popular picks include Underwater Village - Oceanic Structures, YUNG's Better Caves (Fabric), Aquatic Additions.

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Underwater Village - Oceanic Structures
1.21.11neoforge

Underwater Village - Oceanic Structures

Discover a lot of new oceanic structures!

4.7Mdownloads
YUNG's Better Caves (Fabric)
1.20.1fabric

YUNG's Better Caves (Fabric)

Overhauled cave generation, underground lakes and rivers, lava oceans, and more!

1.7Mdownloads
Aquatic  Additions
1.21.10fabric

Aquatic Additions

Aquatic Additions completes the vanilla turtle armor and adds an upgraded version to enhance underwater exploration

506kdownloads
Create: Stranded at Sea
1.21.1neoforge

Create: Stranded at Sea

An ocean survival, centered around create automation, adventure, and a fully integrated economy system.

295kdownloads
Unnamed Sea
1.19fabric

Unnamed Sea

Additional structures for the sea and beach biomes, focusing on an immersive expansion for the vanilla game.

259kdownloads
Aetherial Islands
1.20fabric

Aetherial Islands

Datapack that creates a whimsical floating islands world, with mountains, rivers, and floating ocean bowls!

112kdownloads
One Survival Island
1.20fabric

One Survival Island

Datapack that creates a Single Survival Island in an Infinite Ocean World

102kdownloads
Big Globe - YUNG's Better Ocean Monuments Compatibility
1.21fabric

Big Globe - YUNG's Better Ocean Monuments Compatibility

Data pack to generate YUNG's Better Ocean Monuments in a Big Globe world.

60kdownloads
Better Cave Worlds
1.20fabric

Better Cave Worlds

Datapack that creates Cave Worlds, based on the old preset, featuring all biomes, ocean caves, and most structures.

56kdownloads
Revamped Floating Islands
1.20fabric

Revamped Floating Islands

Datapack that creates Floating Island worlds based on the old preset, with all biomes and structures. Additionally featuring floating oceans and rivers.

44kdownloads
No More Ocean Monuments
1.19fabric

No More Ocean Monuments

Removes ocean monuments from the world generation.

43kdownloads
Deeper Oceans: Refabricated
1.21fabric

Deeper Oceans: Refabricated

Continuation of Apollo's Deeper Oceans mod for Fabric. Oceans 3x as deep as vanilla, with adjusted Ocean Monument placement.

26kdownloads
Temperature Bands
1.19.2forge

Temperature Bands

Modifies world generation to place biomes into repeating temperature bands. Compatible with most worldgen mods. Now with humidity based on proximity to river and/or ocean too!

26kdownloads
Cyra
1.21.1fabric

Cyra

A Minecraft mod that reveals the secrets of the ocean!

3.3kdownloads
Repurposed Structures - Better Ocean Monuments Compat Port
1.21.1fabric

Repurposed Structures - Better Ocean Monuments Compat Port

TelepathicGrunt’s Repurposed Structures - Better Ocean Monuments Compat Datapack ported to Forge, NeoForge, Fabric and Quilt!

3.1kdownloads
d3v_c's Terrain Overhaul
1.21.11fabric

d3v_c's Terrain Overhaul

Fabric worldgen overhaul for 1.21.11: taller mountains, deeper terrain, rebalanced biome climate zones, more natural caves, and improved underwater shaping for realistic Overworld landscapes.

2.7kdownloads
Single Island Generator
1.21.11fabric

Single Island Generator

A Minecraft world generation mod that adds an Island world type, generating an ocean-only world with one randomly generated survival island.

1.3kdownloads
oceans biomes
1.21fabric

oceans biomes

Create worlds made entirely of oceans with a simple configuration screen. Choose the ocean biome, tweak depth, and enable or disable islands and ocean structures.

805downloads
Exodus 14:27
1.21.11fabric

Exodus 14:27

Fixes MC-278019 bug to restore sea level in superflat worlds.

731downloads
Oceanic Plus
1.21.10fabric

Oceanic Plus

Oceanic Plus is a mod meant to improve ocean exploration by making it more rewarding.

444downloads
oceanmanman
1.21.1fabric

oceanmanman

Oceanmanman is a modpack that enhances Minecraft with visual tweaks, new structures, and quality-of-life improvements. It keeps the experience vanilla-friendly, adding fun non-game-breaking changes. Inspired by NIKO YAPS' Modpack. Full credit to Mod devs

413downloads
Water Enhanced
1.21.11fabric

Water Enhanced

Expands ocean gameplay with new resources, gear, and aquatic mechanics while staying true to vanilla.

349downloads
The Abyss Ocean
1.21.11fabric

The Abyss Ocean

Reshape the entire world generation with this mod, the entire world turns into a deep-abyss ocean. Structures like Villages, Trial Chambers, and Strongholds rarely spawn.

332downloads
Realistic Oceans
1.21.11fabric

Realistic Oceans

Adds realistic & deep oceans to minecraft

184downloads
No Boats
1.21fabric

No Boats

This mod removes all boats from Minecraft, forcing you to travel across water the slow way. It makes oceans feel bigger and exploration harder since you can’t just zip across huge distances anymore.

162downloads
Aqua Verse
1.21.1fabric

Aqua Verse

AquaVerse expands aquatic biodiversity of minecraft

129downloads
Unwrecked Ships Mod (1.21.11, 1.20.1) – Vanilla Shipwreck Structures Repaired
1.21.11fabric

Unwrecked Ships Mod (1.21.11, 1.20.1) – Vanilla Shipwreck Structures Repaired

Unwrecked Ships Mod revitalizes Minecraft's oceans by adding fully intact ship structures to the game. Unlike the usual shipwrecks, these functional and complete vessels serve as ready-made bases or exploration hubs. Features: Instead of broken ruins, ships now appear intact and seaworthy, naturally generating in your world Adds 7 ship types using vanilla wood combinations […]

Cobblemon Extra Structures Mod (1.21.1, 1.21) – New Landmarks
1.21.1fabric

Cobblemon Extra Structures Mod (1.21.1, 1.21) – New Landmarks

Cobblemon Extra Structures Mod adds new exploration structures and additional ways to encounter Pokémon. Features: New major structures such as: Bell Tower, Sea Mauville, Desert Ruins, Cave Island, Ancient Tomb, and The Under. Screenshots: Cobblemon Extra Structures Mod Download Links For Minecraft 1.21.1, 1.21 Fabric Version: Download from Server 1 – Download from Server 2 […]

Countered's Settlement Roads Mod (1.21.10, 1.20.1) – Generates Roads Between Villages
1.21.10fabric

Countered's Settlement Roads Mod (1.21.10, 1.20.1) – Generates Roads Between Villages

Countered's Settlement Roads Mod will add roads to Minecraft that will connect villages. These paths perfectly complement the game's atmosphere, as if the villagers themselves walk between villages to exchange items. Now villages are not isolated from each other, and during world exploration, you can simply walk between villages. Even among oceans and seas, buoys […]

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 […]

Lithosphere Mod (1.21.8, 1.20.1) – Realistic and Detailed World Generation
1.21.8fabric

Lithosphere Mod (1.21.8, 1.20.1) – Realistic and Detailed World Generation

Lithosphere Mod is a mod that enhances world generation, creating more realistic and cinematic landscapes. It introduces continents of different sizes separated by oceans, with occasional islands. The coastlines are more gradual with wide beaches, steep cliffs in mountainous regions, and smoother, higher peaks compared to the default. Additionally, rivers are less common but form […]

Better Single Biome Mod (1.21.4, 1.21.1) – Improves Single Biome World Generation
1.21.4fabric

Better Single Biome Mod (1.21.4, 1.21.1) – Improves Single Biome World Generation

Better Single Biome Mod makes a few changes to the world generation to make worlds generated in single biome mode a lot better. All biomes are supported except water biomes and mangrove swamp. The mod lowers the sea level, lowers the geode generation level, improves underwater vegetation, increased structure generation, etc. Features: World generation tweaks […]

No More Grass And Kelp Mod (1.21.1, 1.20.1) – Removes Grass & Kelp From World Generation
1.21.1fabric

No More Grass And Kelp Mod (1.21.1, 1.20.1) – Removes Grass & Kelp From World Generation

When building underwater structures in the ocean, you will have to manually remove a lot of kelp plants. Similarly, when building on plain terrains, you will have to clear out grass from the ground. Both of these can be inconvenient at times. Do you want both grass and kelp to be removed from the game? […]

Can't Touch Water Mod (1.21.8, 1.20.1) – Water Kills On Contact
1.21.8fabric

Can't Touch Water Mod (1.21.8, 1.20.1) – Water Kills On Contact

Can't Touch Water Mod is a fun challenge mod that tests your survival limits. The mod adds a simple new change – water will kill you instantly upon contact. Swimming and ocean exploration are key elements of the survival gameplay. And with this mod installed, those elements of the game are restricted. Features: Adds a […]

Partnership Mod (1.21.1, 1.20.4) – Drive Ships With Friends
1.21.1fabric

Partnership Mod (1.21.1, 1.20.4) – Drive Ships With Friends

Are you a fan of ships and ocean exploration? Do you want to see items in your game that are themed around water travel? If your answer is yes, the Partnership mod is for you. Partnership Mod introduces some new items themed around boats and ocean travel. This includes some costumes, lifebuoys, a kayak that […]

Larion World Generation Mod (1.21.4, 1.20.1) – Fantasy-inspired Landscapes
1.21.4fabric

Larion World Generation Mod (1.21.4, 1.20.1) – Fantasy-inspired Landscapes

Larion World Generation Mod transforms the overworld with fantasy-inspired landscapes, creating new terrain, including extended oceans separating distinctive landmasses, towering mountains, and long, winding rivers carving through the landscape. The world’s height is increased for deeper caves and higher peaks, creating a new sense of exploration. Features: A world divided into landmasses with many islands […]