Minecraft Java 1.20 Mods
Browse 38 free mods for Minecraft Java 1.20 — popular picks include Underwater Village - Oceanic Structures, Rainbow Reef, Aquatic Craft.
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Underwater Village - Oceanic Structures
Discover a lot of new oceanic structures!

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!
Aquatic Craft
Passion project that adds an expansive, fleshed-out aquatic dimension.
Oceanic
Overhauls Minecrafts Oceans and Fishing!
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...
[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.
bigfish: ripple
Expand vanilla fishing with new fish, attributes, collection records, bounties, QTE fishing, cooking, placeable food, exploration tools, and progression-focused aquatic gameplay.
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 […]
Tax' Ocean Pillager Mod (1.21.1, 1.20.1) – Conquer Pirates
Tax' Ocean Pillager Mod introduces pirates and ocean exploration to the game. This mod adds new island structures and pirate enemies, creating a dynamic and adventurous experience for players who love sea adventures. Features: Pirate Islands: Discover mysterious islands filled with resources and challenges. Pirates and Sea Monsters: Battle new enemies, including pirates and ocean-themed […]
Glow Squids Actually Glow Data Pack (1.21.1, 1.20.1) – Illuminate Your Underwater Adventures
Glow Squids Actually Glow Data Pack makes glow squids live up to their name by giving them a real glowing effect. No more dim glow squids-now they emit light, brightening up underwater caves and adding a magical atmosphere to your aquatic explorations. Enhance your underwater worlds with these truly luminous creatures! Enjoy playing this data […]
Little Squids Resource Pack (1.21.1, 1.20.1) – Texture Pack
Little Squids Resource Pack tries to supply players with a charming touch to the aquatic life in Minecraft game, reimagining the Squid as a cute, adorable creature that enhances the overall fun factor of the overall gameplay. These small changes contribute to the overall aesthetics of your game, making your underwater explorations even more enjoyable. […]
Aino's Underwater Adventures (Mermaid & Siren)
An underwater-themed modpack focused on playing as a mermaid or siren, featuring ocean exploration, magic, creatures, and aquatic building.
Luvstar's Sirencraft
A mystical, dark, yet beautifully celestial Minecraft modpack focused on exploring the deep ocean as an underwater creature.
Annie Angel's Mermaidia
Mermaidia is a Minecraft modpack themed around mermaids and other mythical creatures. Explore the ocean depths as a mermaid and meet all kinds of aquatic creatures along the way!
Deadliest Ocean
Transforms Minecraft into a deadly ocean world packed with sea creatures
Archosaur Survival
Archosaur Survival reimagines classic Minecraft by adding custom trees, animals, improved farming and cooking, and toggleable combat. Experience realistic ocean physics, dynamic weather with storms and tornadoes, custom furniture, and detailed blocks.
Mystic Corsairs
A pirate-themed modpack featuring mythical sea creatures, deadly adventures, customizable ships, and intense battles with other pirates.
Cryptid Waters
Dive into the eerie depths and mysterious lands of Cryptid Waters, a Minecraft modpack that introduces a wealth of new content, from the tiniest fish to colossal eldritch sea monsters, transforming your Minecraft world into a rich, immersive experience.
Sharkberry Adventures
An exploration-focused survival pack. Brave new dimensions, tough dungeons and bosses, smarter mobs, and Tetra-based gear in a highly immersive, living world.
Spoduo the Spores Mod (1.20.1) – Battle Ancient Sea Life in a Strange Fungal
Spoduo the Spores Mod adds a massive new dimension based entirely around strange plants and fungi. It gives you a colorful new world to explore filled with unique biomes, hidden ores, and dangerous dungeons. You can dive into oceans filled with ancient sea creatures, craft new types of armor, and build bases with bright new […]
Ecological Replenishment Station Mod (1.20.1) – Survive Among Strange
Ecological Replenishment Station Mod populates your world with strange new biomes full of six-legged animals. It changes the way life works in the game by adding mobs that evolved from a single six-legged ancestor. You can find animals that act like sharks, crocodiles, and flying reptiles, but they all have extra limbs. Features: Adds brand […]