Minecraft Java 1.20 Mods
Browse 1,110 free mods for Minecraft Java 1.20 — popular picks include Dolphin Boots, StarOcean's Better Kobold Tools, Sea eater: ocean horror.
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Dolphin Boots
this lightweight mod adds boots that make you fast underwater
StarOcean's Better Kobold Tools
Retextured kobold iron tools from the Kobolds! mod
Sea eater: ocean horror
something unknown fell into the ocean
Simple Green Screen
Change a Sea Lantern into a Green Screen Block for Editing Purposes
TCC: Seas
Focusing on underwater exploration, automation, tech, magic, and questing. This pack brings an optimized, fun experience.
NoUnderwaterFog
The only shader that removes underwater fog without any other visual changes!
overworld underground Lava remover, and underground water remover separate files
Simply removes underground lava and water only in the overworld, be aware the water remover will make pockets of air to deep rivers and wont work on ocean biomes and its underground
More Ocean Survival
This modpack introduces additional adventuring opportunities to Minecraft's oceans!
Colorful Sea Lanterns
Adds craft-able sea lanterns of all dye colors.
sirens of the deep
have fun exploring the deep sea invite your friend to explor the vast and deep oceans of Minecraft live your best life as a mermaid you wont be harmed by monsters because you are so beautiful customize your tail make it different colors
The Podpack
A general content expansion with some extra focus on underwater + the Aether!
Sharkling Origin
An Origins datapack that adds a new shark themed origin
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"
Improved Rails (TURNABLE POWERED RAILS)
Underwater-version Rails! Rails that's always activated!
Ocean of Secrets
Live the life of a pirate!
Ocean Overhaul
This modpack completely overhauls Minecrafts ocean, adding much more for you to explore and performance improvements.
LunarisCraft
Enhances Vanilla Minecraft with immersive visuals and atmosphere. Discover new wildlife, face ocean predators, and explore challenging Nether and End realms—all while preserving the classic game balance.
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.
SharkSquad Modpacks
A General collective of all SharkSquad affiliated modpacks!
Pride Blåhaj Backport
Backports the Blahåj Replushed mod's newer pride sharks to 1.20.1.
Sky Ocean Serenit
sky overlay texture pack minecraft
Sea & Beach themed gui
I introduce you my sea and beach themed gui ! I really love the beach and for my beach lovers out there I hope you'll like it as much as I do 💗
Ore Minus
Customize Minecraft ore spawn rates by biome. Easily set multipliers for vanilla and modded ores (e.g., 2x diamonds in deserts, zero coal in ocean). Essential modpack ore distribution tool.
Depth ++
Makes the ocean much deeper for underwater exploration
Sea of Steves
Boat battle plugin for Minecraft servers
Space's Sponge Crafting Recipe
Adds a vanilla-friendly, ocean-themed crafting recipe for the uncraftable Sponge block.
OCEANonly survival
Survive in a world covered by ocean with only scattered islands to explore. Build sea bases, expand your resources, and thrive in an endless water world.
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.
Eight Seas
Eight Seas is a pirate-themed adventure modpack. Build a ship, explore the world's vast oceans in search of treasure, and fight powerful enemies. Plunder many dimensions and planets on your quest to become the greatest pirate of all time.

Faentum's Deep Sea Expansion
Deep Oceans are no more safe, Dare to Face the Abyss!
UnderWater Pressure
This mod adds water pressure mechanic
Biome Compatibility Patch
Renames content to preserve compatibility between the 4 major biome mods as well as Terralith, Environmental, Atmospheric, Autumnity, Upgrade Aquatic, Wetland Whimsy, and Jaden's Nether Expansion.
Raft Flotsam - Ocean Salvage
Bring Raft-inspired ocean flotsam to Minecraft! Collect floating debris, barrels and crates while sailing, swimming or exploring the open sea.
Abyss Wretch Origin (Forge)
Play as the Abyss Wretch Origin, offering an underwater-focused gameplay that strays from the luxury-playstyle of Steve and embarks on a more difficult progression path.
Vast Ocean
Makes the oceans of the world into a vast adventure, complete with bosses, loot, and custom pirate ships!
Garden Mermaids
A modpack made to add more exploration, creativity and combat to minecraft! Made to be used by me and my friends but free for use.