Minecraft Java 1.20 Mods
Browse 66 free mods for Minecraft Java 1.20 — popular picks include Oceanic, Mountain Sea and Continent three(山海大陆), Wavify.
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Oceanic
Overhauls Minecrafts Oceans and Fishing!
Mountain Sea and Continent three(山海大陆)
It includes level enhancement, independent attribute system and damage mechanism, magic modification against enemies and creatures, complete upgrade and development system, and constantly improving building structure for players to explore.
Wavify
Adds ambient waves to beaches,oceans and rivers!
Dorsal Moon
An add-on for Enhanced Celestials, adding a Moon that aids in ocean exploration for the night.
[Origin]: Axolotl
Adds the Axolotl, an aquatic origin like the base Merling. It takes risks, can cheat death and operates best when vulnerable.
Simply: Immersive Drowning
Adds an aquatic element of realism to Minecraft!
Crysis Radiation Mod
A simple Fabric mod for the Nucleaquaria roleplay SMP series. This mod introduces radiation to aquatic environments, filling oceans and rivers with new challenges and radioactive danger.
Sea level rise | 海平面上升
Raise the sea level to 110, most of the land will be submerged by water,offering a unique gameplay experience.
Spinosaurus Origin
A massive theropod dinosaur with a distinctive sail-like structure on its back. It is believed to have had an aquatic lifestyle, primarily feeding on fish. Its unique adaptations made it well-suited for life in and around water.
Night Vision Ultimate
Night Vision Pack for Minecraft without turning off achievements by. Enjoy full brightness anywhere—no potions needed! Perfect for caves, night, and underwater.
Nauticlysm
Adding new nautilus mobs with different variants for ocean biomes!
UnderDasea
A mod that aims to add life to the oceans.
ExplodeAny
Customize explosions, break obsidian, underwater TNT, Folia support, many integrations and more!
Karma Shader Nightmare
A cinematic horror Minecraft shader pack that turns the dark into a living threat. Features dynamic fear mechanics, hallucination warping, drifting fog banks, a blood moon, desaturated colors, and its terrifying inverted sea ceiling.
resurfaced
Making underwater exploration easier in a simple way
bigfish: ripple
Expand vanilla fishing with new fish, attributes, collection records, bounties, QTE fishing, cooking, placeable food, exploration tools, and progression-focused aquatic gameplay.
One Piece World Like - Mine Piece
Transforms Minecraft into a true One Piece-inspired world with custom oceans, islands, conquest systems, and Grand Line exploration for the Mine Piece mod.
Blunderbombs
Bring the chaos of Blunderbombs from Sea of Thieves into Minecraft Comes in both damaging and non-damaging variants!
A Fisher's Dream
A modpack centered around enhancing fishing and aquatic adventures, featuring new fish species, improved mechanics, unique tools, and expanded water biomes for an immersive experience.
Sharkling Origin
An Origins datapack that adds a new shark themed origin
Ore Minus
Customize Minecraft ore spawn rates by biome. Easily set multipliers for vanilla and modded ores (e.g., 2x diamonds in deserts, zero coal in ocean). Essential modpack ore distribution tool.
Depth ++
Makes the ocean much deeper for underwater exploration
UnderWater Pressure
This mod adds water pressure mechanic
[Origin]: Woodmuncher
A small datapack that adds a new aquatic Origin to make friends with the Merling, the Woodmuncher. It's based off of beavers and can eat and phase through logs.
Fruit of Thieves
A mod that adds fruit from sea of thieves
Craftable Heart of the sea
This is a simple light weight data pack that adds a recipe for the Heart of the sea item.
Create: Flood Pulley
An addon for Create that adds a variant of the Hose Pulley without the bottomless supply mechanic, so you can drain perimeters and fill whole oceans.
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.
Lunar Origins: Wopol
An aquatic Origin for the Origins mod. Requires Lunar Origins Core.
Gnasher Origin [DEPRECATED]
Adds a new aquatic origin to the popular Origins mod, the Gnasher, who dishes out rapid damage by vigorously shaking the camera.
Lava Oceans
simple datapack that makes all oceans lava
ICanGamez Better Fishing
This adds new fishing rods, Fishes, Gear, Weapon, And much more aquatically themed! Just a boost in the fishing experience!
Fishing Aquatica Expanded
Making fishing better one step at a time.

Blue Oceans
Blue Oceans is a technology-adventure mod designed to enhance the player's gaming experience by incorporating real-life items.It also includes some magical items.
Origins: Flying Fish
Flying Fish — fragile aquatic race with 5 ❤️. Breathes underwater (Oxygen resource, 0–100) but suffocates on land. Has built-in elytra, water blades, high swim speed. Weaknesses: fire, slowness on land, oxygen drain in Nether/flight/deserts.
UnderPressure
a realistic underwater experience by simulating the effects of water pressure on players as they dive deeper into the ocean.