Forge Mods for Minecraft Java
Browse 57 free Forge mods for Minecraft Java — popular picks include Underwater Village - Oceanic Structures, Awesome Dungeon Ocean, Rainbow Reef.
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Underwater Village - Oceanic Structures
Discover a lot of new oceanic structures!
Awesome Dungeon Ocean
This mod adds dungeons to your ocean, like boat, ruin..

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
Mo' Creatures Extended
Continued maintenance for 1.12.2 – Adds several animals, monsters, aquatics and insects to the world of Minecraft!
Panthalassa
Panthalassa adds prehistoric aquatic creatures to your world!
Aquatic Craft
Passion project that adds an expansive, fleshed-out aquatic dimension.
FEZ - (Farming, Equestrian, & Zoology)
You’re all in one Modpack, exploring an open world filled with many new animals, explore the deepest of the oceans to the densest of jungles; settle down raise livestock, grow crops, train horses, or travel back in time exploring undiscovered Lands.
Wonderous Sea - Endless Ocean
Wonderous Sea adds new under represented marine life to the world of Minecraft!
deep oceans
deep oceans is a mod that adds very deep oceans
Sea Creeps
Sea Creeps have swam into Modrinth! The ocean just got explosive...
Aures - Sea Dwellers
Underwater villages and sea traders with random generation. Vanilla style.
[Alone on a Raft] Ocean Survival
A perfect ocean survival modpack for a "100 Days" challenge!Explore a world of vast islands, craft an ever-growing boat, and survive dangerous sea creatures.

Pufferz
Want more aquatic animals & plants to fill your aquariums? Well then look no further!
UnderDasea
A mod that aims to add life to the oceans.
Dead World [Remake]
Four new dimensions, a lot of new creatures, new bosses and monsters to defeat in this mod to explore. From the oceans to the caves, you will find dangerous monsters and beatiful creatures.
bigfish: ripple
Expand vanilla fishing with new fish, attributes, collection records, bounties, QTE fishing, cooking, placeable food, exploration tools, and progression-focused aquatic gameplay.
Adrift
Stranded in the ocean, you're forced to fend for yourself and survive. Can you thrive, or will you get eaten by the monsters that surround you?
Stranded in the ocean
you must survive in a flooded world with new items structures and animals
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
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"
The Great Ring of Oceanus
A Revamped Ocean Monument is the Gateway to a New Deep Ocean Dimension!
Azúl
An all-new dimension featuring a gigantic ocean surrounding it, and its magnificent fauna—or perhaps just a simple fauna mod?
Acuatic Practic
It's a mod with strange and funny aquatic beings.
Travis's Oceanic Biomes
Adds more oceanic biomes to your world!
Misanthrope Gas Engine
Atmospheric simulation, simulating gas pressure, all real life gasses, real thinning atmosphere, and reworked breathing to reflect, this affects all non-aquatic mobs
Remove Armor Enchant 实用附魔与爱的魔药
Added a few powerful enchantments to the original version, helpful for combat and underwater exploration.本模组添加了两种附魔脱甲与炸塘,让你在战斗和环境破坏中有更多玩法。
SCP-093 Mod (1.20.1, 1.19.4) – The Red Sea Object
SCP-093 Mod takes Minecraft into a new dimension inspired by the SCP universe. This mod added a new mob called "SCP-093" that only appears when entering the red dimension. Don't touch any red discs you find. If not, you will end up falling into this creature trap again. Features: Added a new dimension to Minecraft, […]
Oceanic Realms Mod (1.20.1) – Sharks, Crabs And New Sea Biomes
Oceanic Realms Mod adds new biomes, realistic marine animals, and vibrant underwater activity. From group-traveling hammerheads to plankton-feeding whale sharks. Features: Adds sharks (Great White, Hammerhead, Whale Shark…) New large & small fish species: Tuna, Sailfish, Lionfish, etc. Crabs that can be eaten-and even dance to music. Unique spawn conditions across warm, cold, and deep […]
Paranoia Mod (1.20.1, 1.19.2) – Injury, Hunger, Inclement Weather, Darkness
Paranoia Mod introduces a dynamic paranoia mechanic. It activates under specific adverse conditions such as injury, hunger, inclement weather, darkness, and underground or underwater exploration. When triggered, the mod induces a state of heightened tension through various unsettling effects. Consequently, players will face challenges including the inability to sleep, persistent mob pursuit, and unpredictable sensory […]
Aquamirae Mod (1.20.1, 1.19.2) – Mysterious Oceanic Adventure
Aquamirae Mod is a mod focused on generating new structures of varying sizes and designs for survival mode enthusiasts. For example, players can discover the Ice Maze in the Deep Frozen Ocean biome. These new structures may or may not contain hostile creatures. Currently, the entities introduced by this mod include Eel, Maw, Mother of […]
Unstructured Mod (1.19.4, 1.18.2) – New Types of Structures & Dungeons
Unstructured Mod adds 8 new structures to Minecraft. A significant portion of these structures, such as wandering trader camps, ocean villages, or piglin outposts, will be populated by vanilla mobs. This adds a fresh exploration experience without disrupting the existing atmosphere. Features: Temple Dungeon: A temple in the jungle with a large dungeon underneath. Ocean […]
Shipwrecks Mod 1.12.2, 1.11.2 (It's A Pirates Life for You)
Shipwrecks Mod 1.12.2, 1.11.2 adds destroyed ships to the world generation, a new mob, and a diving suit. Currently adds rowboats, sailboats (upright and sideways), sloops, schooners, and the Waverunner to oceans and beaches. This mod adds in ships that spawn randomly in your world. They have many treasures to seek out and make the […]
Minenautica Mod 1.7.10 (Crazy Ocean Animals)
Minenautica Mod 1.7.10 strives to implement aspects of the popular game under-water survival game, Subnautica, to create an expierence that is both the combination of Minecraft and Subnautica or "Minenautica." This mod includes hundreds of items and blocks, and three unique biomes found in a new dimension inhabited with alien fish, plants, and coral. Features: […]
Sea And Prehistory
Investigate the remnats of previous explorers and creatures in search of ancient treasures and creatures!
CAZfps The Dead Sea
this mod adds a very scary apocalyptic and terror themed dimension