Mods for Minecraft Java
Browse 187 free mods for Minecraft Java — popular picks include YUNG's Better Caves (Forge/NeoForge), YUNG's Better Ocean Monuments, Aquamirae.
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YUNG's Better Caves (Forge/NeoForge)
Overhauled cave generation, underground lakes and rivers, lava oceans, and more!
YUNG's Better Ocean Monuments
A complete redesign of Minecraft's ocean monuments!
Aquamirae
Ship graveyard with terrible deep sea creatures!
Ocean Floor - Clay Sand and Dirt
Spawns patches of Clay, Sand, and Dirt, within the Deep Dcean layer of boring gravel
Underwater Village - Oceanic Structures
Discover a lot of new oceanic structures!
Awesome Dungeon Ocean
This mod adds dungeons to your ocean, like boat, ruin..
YUNG's Better Caves (Fabric)
Overhauled cave generation, underground lakes and rivers, lava oceans, and more!

Fish of Thieves
A mod adds all the fish from Sea of Thieves, fish fer ye pirate!
YUNG's Better Caves
Overhauled cave generation, underground lakes and rivers, lava oceans, and more!
Dungeons and Taverns Ocean Monument Overhaul
This Mod/Datapack Overhauls the Ocean Monument, turning it into a jigsaw structure, every room has randomized walls and floors, and some loot chests are scattered around

Rainbow Reef
Rainbow Reef is a mod that adds content to spruce up your in-game aquariums and coral reefs, including lots of new fish and sea creatures!
Prehistoric Nature
Prehistoric plants, dinosaurs, animals, creatures, mobs, land and aquatic biomes and dimensions with many building blocks
Ocean World Dimension
Explore an endless ocean in the Deep Sea dimension!
Aquatic Additions
Aquatic Additions completes the vanilla turtle armor and adds an upgraded version to enhance underwater exploration
Underwater Village
Discover a lot of new oceanic structures!
Mo' Creatures Extended
Continued maintenance for 1.12.2 – Adds several animals, monsters, aquatics and insects to the world of Minecraft!
NoMoreCraters
this is a simple mixin mod to remove AE2 destructive worldgen, and converts meteors to buried/underwater with no craters impacting nearby structures
Unnamed Sea
Additional structures for the sea and beach biomes, focusing on an immersive expansion for the vanilla game.
Panthalassa
Panthalassa adds prehistoric aquatic creatures to your world!
[HUGE UPDATE] Fisherman's Haven
A huge expansion for fishing and ocean exploration in Minecraft!
Sky Archipelago
Sky Archipelago adds a new floating-islands world generation. High degree of configurability, such as island density, sizes, Y-spawn heights, ocean or void and much much more!
Aetherial Islands
Datapack that creates a whimsical floating islands world, with mountains, rivers, and floating ocean bowls!
Ocean Core
A mod that turns the world into a ocean with islands scattered about
Antique Trading Ship
Adds an antique villager trading ship to all ocean biomes
One Survival Island
Datapack that creates a Single Survival Island in an Infinite Ocean World
Aquatic Craft
Passion project that adds an expansive, fleshed-out aquatic dimension.
Oceanic
Overhauls Minecrafts Oceans and Fishing!
Underwater Biome
New biomes in the ocean, new features and tech-tree!
Big Globe - YUNG's Better Ocean Monuments Compatibility
Data pack to generate YUNG's Better Ocean Monuments in a Big Globe world.
Better Cave Worlds
Datapack that creates Cave Worlds, based on the old preset, featuring all biomes, ocean caves, and most structures.
Diving Bell for TFC
Introduces Items to dive for longer, encouraging underwater exploration.
Revamped Floating Islands
Datapack that creates Floating Island worlds based on the old preset, with all biomes and structures. Additionally featuring floating oceans and rivers.
No More Ocean Monuments
Removes ocean monuments from the world generation.
Evil Ocean
Evil Ocean is an world generation mod with custom generation
Ocean Villager Trader
adds a new villager the Ocean Trader and his lighthouse structure
Wonderous Sea - Endless Ocean
Wonderous Sea adds new under represented marine life to the world of Minecraft!