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Minecraft Java 1.21 Mods

Browse 750 free mods for Minecraft Java 1.21 — popular picks include Oceanic Weaponry, Sea-Through Boat, The Fog Origin.

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Oceanic Weaponry
1.21.1fabric

Oceanic Weaponry

This mod adds a few weapons themed around the ocean

8.7kdownloads
Sea-Through Boat
1.19

Sea-Through Boat

Explore the depths like never before with this crystal-clear glass-bottom boat resource pack. See underwater wonders as you glide across the ocean, bringing new life and clarity to your Minecraft adventures.

8.6kdownloads
The Fog Origin
1.21

The Fog Origin

This datapack adds a new origin to the Origins mod, The Fog. Using this origin, you can fly through the sky and swim through the sea as a ball of gas, or temporarily solidify to hang out with friends!

8.3kdownloads
[World Generator] Ocean Only Water World!
1.21.11

[World Generator] Ocean Only Water World!

A world with endless oceans and small settlements only. Like in the movie Waterworld.

7.9kdownloads
Fish Fix
1.21.1neoforge

Fish Fix

Amends hardcoded sea level assumptions to fix aquatic mob spawning.

7.7kdownloads
Atlantis: Fire Beneath Water
1.20

Atlantis: Fire Beneath Water

Classic underwater survival challenge map, now upgraded to Datapack | 经典水下生存地图数据包重制版《亚特兰蒂斯:水寒火暖》

7.2kdownloads
小鲨鱼pvp材质包Sharky PvP Texture Pack
1.6.1

小鲨鱼pvp材质包Sharky PvP Texture Pack

实用简约的pvp起床战争材质包,持续更新中——小鲨鱼工作室出品 A practical and minimalist PvP Bed Wars resource pack with low on fire, continuously updated — produced by sharky workshop

7.2kdownloads
TigerShark
1.21.1neoforge

TigerShark

磁场转动是漫画《海虎》和《武神》系列中的一种超能力,属于宇宙本源之力,是宇宙中必不可少的力量 Magnetic field rotation is a superpower in the manga series "Sea Tiger" and "God of War", belonging to the primordial force of the universe and an indispensable force in the universe.

6.9kdownloads
craftable Sponge Tweak
1.21fabric

craftable Sponge Tweak

Allows players to craft sponges instead of only finding them in ocean monuments. Mod

6.7kdownloads
The Red Sea Tools
1.21.11

The Red Sea Tools

Change your vanilla tool to be cooler and better

6.5kdownloads
Create: Warnautics
1.21.1neoforge

Create: Warnautics

Create Big Cannons add-on with redstone-launched aerial bombs, multi-bomb cassettes, sea bombs, land mines, cinematic blast effects, and optional Sable ship destruction.

6.4kdownloads
Better Oceans and deserts
1.21fabric

Better Oceans and deserts

Generates aquatic structures to liven up oceans.

6.4kdownloads
Chromakey Blocks
1.12.2

Chromakey Blocks

A resource pack for adding chromakey blocks in Minecraft! This makes it easy to take out the background from screenshots or videos like a greenscreen. This changes glowstone to green, sea lanterns to blue, and shroomlights to red.

6.0kdownloads
Unlocked Void Sea - Aeronautics Addon
1.21.1neoforge

Unlocked Void Sea - Aeronautics Addon

A simple utility mod that lets you use the "End Sea" physics from Create: Aeronautics in other dimensions. Extremely configurable.

6.0kdownloads
DeepSea
1.21.11neoforge

DeepSea

Changes boat navigation on ocean regions

5.9kdownloads
Accurate Salmon Variation
1.20

Accurate Salmon Variation

Salmon spawned oceans will use the a salmon texture that reflects real life salmon in oceans, while river salmon use their vanilla texture

5.7kdownloads
Gigantic Squid
1.21.4

Gigantic Squid

This datapack adds a new 3D animated ocean boss, the gigantic squid! No resource pack required!

5.7kdownloads
Deep Ocean Panorama
17w43a

Deep Ocean Panorama

A custom main-menu panorama depicting the deep ocean

5.7kdownloads
Deep Blue
1.20.4fabric

Deep Blue

Adds 10 majestic ocean creatures — whales, sharks, giant squid, and more — along with 15 new items including weapons, food, and crafting materials to bring the deep seas to life.

5.5kdownloads
Kislevemon
1.21.1

Kislevemon

This is a Cobblemon addon which comes with currently 19 fakemons, Shiny and non shiny! they can be found in the oceans, deserts and forests.

5.5kdownloads
Total Light✨
1.16.3

Total Light✨

This texture pack boosts the game’s overall lighting, letting you see clearly 💧 underwater, ⛏️ in caves, and 🌙 during the night

5.5kdownloads
Jeff The Land Shark v.1 [Cobblemon 1.7]
1.21.1

Jeff The Land Shark v.1 [Cobblemon 1.7]

Mrr! Adds Jeff the Land Shark from Marvel Rivals to Cobblemon.

5.4kdownloads
craftable Sponge
1.21

craftable Sponge

Allows players to craft sponges instead of only finding them in ocean monuments.

5.4kdownloads
Over the Sea | Underwater Adventures!
1.21.1neoforge

Over the Sea | Underwater Adventures!

Facing new aquatic dangers in a world made up entirely of water and small islands floating on it.

5.3kdownloads
Create Simulated: End Sea Everywhere
1.21

Create Simulated: End Sea Everywhere

Bare bones datapack that adds the End Sea from create simulated to other dimensions. Useful for Skyblock style modpacks.

5.2kdownloads
Aquatic Torches for Fabric 1.21.1
1.21.1fabric

Aquatic Torches for Fabric 1.21.1

Waterloggable glow squid torches for Tricky Trials.

5.1kdownloads
Blue Depths
1.21.11

Blue Depths

This is a datapack that improves the Minecraft ocean and river ecosystem by adding new mobs, blocks, and a brand new ocean boss. The new sea creatures include Orcas, Sharks, Sturgeons, Jellyfish, Catfish, and Tuna

4.9kdownloads
Sea Blue Sky Overlay
1.21

Sea Blue Sky Overlay

A fabricskybox sky overlay of a beautiful blue sky over an ocean.

4.7kdownloads
Colorful Lights
1.21

Colorful Lights

Changes Shroomlights, Redstone Lamps, Glowstone, Sea Lantern colors (Please see files for other colors)

4.7kdownloads
Scuba Diving Suit
1.20.1forge

Scuba Diving Suit

Scuba Gear adds a functional diving suit designed for underwater exploration, explore the ocean with confort in a vanilla way.

4.7kdownloads
Hana's Plushies
1.21fabric

Hana's Plushies

Adds craftable and rare loot plush shark items. 16 for each of the colors and several pride ones.

4.6kdownloads
MxSxC1 No Particles
1.21.10

MxSxC1 No Particles

This removes the following particles: Buff Effects Rain Splashes Underwater Bubbles

4.4kdownloads
Water World (Only Ocean)
1.21

Water World (Only Ocean)

Removes all land above sea level leaving only ocean.

4.4kdownloads
More Tide Fish
1.21.1neoforge

More Tide Fish

Added some dangerous deep ocean fish to Tide⚡️

4.3kdownloads
Maddy's Origins
1.21.1fabric

Maddy's Origins

A comprehensive rework of Origins, replacing the stock origins with 9* new, varied origins. Become a featherweight Avian, a semi-aquatic Amphibian, a durable Construct, a nimble Critter, and more!

4.3kdownloads
OceanBlock - Skyblock Reinvented
1.21.1neoforge

OceanBlock - Skyblock Reinvented

Skyblock, but in the ocean

4.0kdownloads