Mods for Minecraft Java
Browse 129 free mods for Minecraft Java — popular picks include Ocean's Delight, More Useful Copper, Underwater Village.
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Ocean's Delight
Ocean's Delight is an addon mod for Farmer's Delight based around adding culinary content to the ocean!
More Useful Copper
New uses for copper, such as statues, aquatic redstone, and many other tools!
Underwater Village
Discover a lot of new oceanic structures!
[HUGE UPDATE] Fisherman's Haven
A huge expansion for fishing and ocean exploration in Minecraft!
Oceanic
Overhauls Minecrafts Oceans and Fishing!
Aquatic
Harness the power of the watery depths, adds mechanics that allow you to build underwater and more!
Myths of The Sea
Discover new mythological aquatic creatures, such as the Leviathan, the Kraken, the Hippocampus, and many more!
Mountain Sea and Continent three(山海大陆)
It includes level enhancement, independent attribute system and damage mechanism, magic modification against enemies and creatures, complete upgrade and development system, and constantly improving building structure for players to explore.
Sea Weapons
A mod that adds new sea themed weapons to minecraft!
Wavify
Adds ambient waves to beaches,oceans and rivers!
Liquid Fog Begone
A simple mod that allows you to control how dense the fog is while underwater or in lava.
Ocean's Delight (Polymer Port)
Polymer Port of Ocean's Delight
Aures - Sea Dwellers
Underwater villages and sea traders with random generation. Vanilla style.
Dorsal Moon
An add-on for Enhanced Celestials, adding a Moon that aids in ocean exploration for the night.

Pickles to Skellys
Client-side Fabric mod for Donut SMP that disguises sea pickles as skeleton spawners and iron chestplates as elytras.
ElytraSwimFix
Prevents elytra from being activated underwater
Impenduits
Adds weak forcefields powered by Hearts of the Sea
Boatism
Add new and fully customizable Boat Engines to Minecraft. Traveling by sea will never be the same again!

Fish Fix
Amends hardcoded sea level assumptions to fix aquatic mob spawning.
Simply: Immersive Drowning
Adds an aquatic element of realism to Minecraft!
Crysis Radiation Mod
A simple Fabric mod for the Nucleaquaria roleplay SMP series. This mod introduces radiation to aquatic environments, filling oceans and rivers with new challenges and radioactive danger.
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.

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!
Mako Mermaids Mod
Live your H2O dream! Play as Cleo, Emma, Rikki or Mako characters, use elemental powers, and create your own story!
Aquatic Breeding
Adds a way for fish and squid to breed, manual and automatic! Fish eat Fish Flakes, Squid hunt for live prey! Breed Tropical Fish of all colors and patterns!
Cyra
A Minecraft mod that reveals the secrets of the ocean!
UnderDasea
A mod that aims to add life to the oceans.
ExplodeAny
Customize explosions, break obsidian, underwater TNT, Folia support, many integrations and more!
More Aeronautics Void Seas
Makes the Create Aeronautics End Sea spawn in the other two dimensions.
Hold Your Breath
When you go underwater in-game, you need to hold your breath in real life.
Create: Blahaj Factory
Create: Blahaj Factory adds more compat between Just Blahaj & Create to automate your shark friends! (Also Compatible with Only Blahaj)
resurfaced
Making underwater exploration easier in a simple way
bigfish: ripple
Expand vanilla fishing with new fish, attributes, collection records, bounties, QTE fishing, cooking, placeable food, exploration tools, and progression-focused aquatic gameplay.
One Piece World Like - Mine Piece
Transforms Minecraft into a true One Piece-inspired world with custom oceans, islands, conquest systems, and Grand Line exploration for the Mine Piece mod.
Blunderbombs
Bring the chaos of Blunderbombs from Sea of Thieves into Minecraft Comes in both damaging and non-damaging variants!
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.