Neoforge Mods for Minecraft Java
Browse 65 free Neoforge 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!
FTB OceanBlock 2
Nothing but endless ocean. No land. No rescue. You’re alone - or so you think...
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
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!
NoMoreCraters
this is a simple mixin mod to remove AE2 destructive worldgen, and converts meteors to buried/underwater with no craters impacting nearby structures
Create: Stranded at Sea
An ocean survival, centered around create automation, adventure, and a fully integrated economy system.
Unnamed Sea
Additional structures for the sea and beach biomes, focusing on an immersive expansion for the vanilla game.
[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!
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
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.
Ocean Villager Trader
adds a new villager the Ocean Trader and his lighthouse structure
Temperature Bands
Modifies world generation to place biomes into repeating temperature bands. Compatible with most worldgen mods. Now with humidity based on proximity to river and/or ocean too!
Atlantis
This mod adds an ocean dimension to Minecraft with colored seashell, translucent colored pearls, shipwreck with treasure chest full of gold and aquamarine ore, and more.

Deep Waters
mermaids dimension

Fish Fix
Amends hardcoded sea level assumptions to fix aquatic mob spawning.
Unlocked Void Sea - Aeronautics Addon
A simple utility mod that lets you use the "End Sea" physics from Create: Aeronautics in other dimensions. Extremely configurable.
Over the Sea | Underwater Adventures!
Facing new aquatic dangers in a world made up entirely of water and small islands floating on it.
Scuba Diving Suit
Scuba Gear adds a functional diving suit designed for underwater exploration, explore the ocean with confort in a vanilla way.
Repurposed Structures - Better Ocean Monuments Compat Port
TelepathicGrunt’s Repurposed Structures - Better Ocean Monuments Compat Datapack ported to Forge, NeoForge, Fabric and Quilt!
Hybrid Aquatic: Fantastic Fishery
An addon for Hybrid Aquatic that adds various imaginary fish
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.
More Aeronautics Void Seas
Makes the Create Aeronautics End Sea spawn in the other two dimensions.
End Sea Everywhere
Bare bones datapack that adds the End Sea from create simulated to other dimensions. Useful for Skyblock style modpacks.
Aquatic Fauna Expansion
A NeoForge mod that revitalizes Minecraft's oceans with new creatures, behaviors, and underwater biodiversity.