Mods for Minecraft Java
Browse 405 free mods for Minecraft Java — popular picks include UnderDasea, Aquatic Shulkers, DivineRPG Ocean Spawn Fix.
Step by step: How to install Minecraft Java mods & modpacks
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UnderDasea
A mod that aims to add life to the oceans.
Aquatic Shulkers
Shulkers generate in deep oceans like clams
DivineRPG Ocean Spawn Fix
Fixes the long outstanding problem of Ocean mobs from DivineRPG spawning 1000's ALL OVER
Useful Sharks
I added sharks because mojang won't
Aqua
Deep sea creatures.
Beyond The Ocean
A Mod that let´s you explore beyond the oceans of minecraft. New ocean themed planets on a post End level difficulty. New structures, mobs, items and technologies. New adventures and a new story ready to be told.
Aquatic Fauna Addition
A mod adding content to the oceans
Dead World [Remake]
Four new dimensions, a lot of new creatures, new bosses and monsters to defeat in this mod to explore. From the oceans to the caves, you will find dangerous monsters and beatiful creatures.
bigfish: ripple
Expand vanilla fishing with new fish, attributes, collection records, bounties, QTE fishing, cooking, placeable food, exploration tools, and progression-focused aquatic gameplay.
Jeff The Landshark
Bring home Jeff the Landshark as a fully interactive companion with unique abilities, progression, collectibles, armor, weapons, blocks, and much more custom features.

Water World - Atolls
Water World - Atolls is an immersive Minecraft mod (Fabric) that breathes life into ocean biomes by introducing procedurally generated Atoll structures, complete with custom villager AI behaviors, dynamic fishing, and unique blocks to ease water buildin
Aquatic Fauna Expansion
A NeoForge mod that revitalizes Minecraft's oceans with new creatures, behaviors, and underwater biodiversity.
Shell Seekers
Adds 7 types of shellfish to ocean floors with pearls that summon Endermen when thrown.
Extrabiomes
ExtraBiomes is a world generation addon/mod for Minecraft, available for both Bedrock and Java Edition, that adds 26 new biomes to the overworld, along with the mobs, blocks, and structures to fill them, from burnt forests and jellyfish-filled oceans to
Great White Shark
This mod adds simple great white shark
Marine biology
A mod that diversifies the oceans and adds several marine mammals from the cetacean family. Currently, the largest is the humpback whale. There is also a bowhead whale that you can ride. Smaller ones include the beluga whale, the pilot whale,

Faentum's Deep Sea Expansion
Deep Oceans are no more safe, Dare to Face the Abyss!
Pets Load Chunks
Loads the chunks tamed pets are in, enabling use of them as chunk loaders while they're sitting around and fixing teleportation across oceans.
Seafarer[Fabric]
A port of the Seafarer[Forge] Version. This is a mod that aims to improve the Minecraft Oceans and its surroundings.
Leviathan
A new oceanic mob for Minecraft 1.20+
Aquatic Plugin
This is a Minecraft Plugin wich adds many Ocean and Fish releated things to Minecraft
Sea eater: ocean horror
something unknown fell into the ocean
Sea Things
This mod make prismarite very good. Sea Things show you the power of Oceans, Guardians and etc.
Tek N Astra (Sea of Dreams)
This mod aims to add way more content to the game, especially post-Ender Dragon part of the game!
Monster Origins
(WIP) Minecraft 1.20.1 (and now 1.21.1) / Fabric addon for Origins that adds four origins Arachne (a humanoid spider), Medusa (a gorgon), Harpy (a storm-wind bird-woman), and Mermaid (a singer of the deep) each built around a different playstyle
Aquaticworld
This mod adds 5 new creatures to diversify the oceans.The mod will also add 9 new structures and their prehistory.The mod is based on the game "Subnautica"
Motley Fins
Updates aquatic biomes, adding blocks and a new mob!
Fish Rework - Fishing
A plugin that reworks the fishing mechanic, by fishing up unique sea creatures instead of normal fish. Custom drops, items, armor, weapons, skill progression, recipes, custom GUI, advancements, artifacts and more.
Sea Core Balance & Utilities
A balance and utility addon for Mine Mine no Mi and CartAddon, focused on cleaner PvP, reworked abilities, improved fruit terrain effects, bosses, crates, and server-friendly config tools.
Blood in the Water
A mod that adds new and possibly deadly aquatic mobs to Minecraft!
Depths Reborn
This mod adds the Nautilus. Work will also be done to add some aquatic mobs and mob votes, such as the crab and The Monster Of The Ocean Depths, as well as others.
better mob : sea expansion
Better Mob: Sea Expansion transforms Minecraft oceans with unique creatures like Whales, Lobsters, Deep Watchers, Coral Golems, and Jellyfish, creating deeper exploration, dangerous encounters, and unforgettable underwater adventures.
Oh Can't You Sea
A mod that aims to improve the oceans of minecraft.
Mo' Creatures StationAPI
DrShark's Mo' Creatures from beta 1.7.3 on Babric + StationAPI
Oceanlife
This project adds new Fish variants such as a shark that can attack you.

StaffCraft: Evolution
StaffCraft: Evolution adds 10+ unique magical staffs with insane abilities. Freeze enemies, bend reality, summon meteors, control the ocean and more! Collect shards from mobs, craft powerful staffs, and battle friends in the arena with the /vs system. ⚔️