Mods for Minecraft Java
Browse 1,184 free mods for Minecraft Java — popular picks include Grassidium, Raft Flotsam - Ocean Salvage, Abyss Wretch Origin (Forge).
Step by step: How to install Minecraft Java mods & modpacks
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Grassidium
Makes plants alive! Grass, flowers, underwater, and modded plants spread and grow dynamically based on their environment.
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.
Drown Panic
"An immersive mod that enhances survival atmosphere underwater with a wide screen vignette (tunnel vision) and realistic heartbeat sounds when drowning."
Exodus 14:27
Fixes MC-278019 bug to restore sea level in superflat worlds.
RC GameShark (Cobblemon)
RC GameShark is a client-side tracking mod for Cobblemon that helps you locate and hunt specific Pokémon more efficiently. It scans nearby spawns and provides real-time visual and audio cues to guide you directly to them.
Better Turtle Helmets
Reworks the turtle helmet to provide continous water breathing underwater at the cost of losing durablility overtime.
Create: Manufacturable Lapis Lazuli
Adds a Create mod Lapis Lazuli recipe, allowing the unlimited creation of Sea Lanterns.
Redstone Underwater
Redstone can now be waterlogged!
Blood in the Water
A mod that adds new and possibly deadly aquatic mobs to Minecraft!
Aquatic and Fishing
welcome to Minecraft's fishing
Aqualung
The recipe combines glass, a nautilus shell and a turtle scute to create a useful diving item for long underwater trips.
Puris Eco Ocean
This is a passion project from zi_jian. It adds 10 brand-new ocean biomes, 29 new entities, along with corresponding items, materials and decorative blocks. I'm still a beginner mod developer, so feel free to report any bugs you encounter.
BloodSea
magical things, nothing else
Lubrum, A Pirate's Gold and Drink!
A mod that adds Lubrum Ore into the game for new metal and that can be alloyed for use in TConstruct. Underwater treasure chests underwater filled with loot! Special distillery for creating drinkable rum. Terraria-inspired fishing crates and new fishrods!
Waterbed
Introduces a bed that lets you sleep underwater
Underwater mining
Mine with powerfull drill under water!
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.
Improved Oceans
A mod to further improve your ocean experience!
Motley Fins
Updates aquatic biomes, adding blocks and a new mob!
Oh Can't You Sea
A mod that aims to improve the oceans of minecraft.
Blåhaj Lite
Blåhaj Neoforge port, Remove Pride Sharks
Sea Bunny´s
Adds Adorable Sea Bunny´s to Minecraft ❤️
Waterlogged Beds
Allow beds to be waterlogged for more immersive underwater builds
TooMuchOcean
Fabric mod that allows the chance of ocean conversion to land to be controlled via a config
SCP-5542 | Cake By The Ocean
A coast where digging underground reveals edible cake for approximately 2.5 meters.
Sea of Bombs
Adds the Fire, & Blast Bombs and the Bone Caller from Sea of Thieves

Simple Mermaid Tails
This Mod adds Mermaid Tails, thats it. This is kinda a fork from my Mako Mermaids Mod but without the Powers etc.
EasyBuild(oceanstudio)
EasyBuild is a commission-driven building plugin for Minecraft servers. Create regions, contract builders, track progress, and pay rewards via Vault. Permission-protected building, admin reviews, and multilingual messages.
Old Continents Slider
Remember when Minecraft had real oceans? Until 1.6.4, the world was big continents floating in a huge ocean. Since 1.7.2, it's an infinite landmass with elongated lakes.
Submarines'n Torpedoes
Adds submarines with sonar, homing torpedoes, and underwater combat to Minecraft.
Secret Rooms
Secret buildings with rare loot underground, underwater, and in the End
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.
Total Water World
Raises sea level to y=200 & removes all non-ocean biomes.
Chilled
A Medium Mod improving the Deep cold oceans.
InfiniOcean
An infinite ocean world.