Data Packs for Minecraft Java
Browse 182 free data packs for Minecraft Java — popular picks include Aquatica - 0.1 Actual Fishing, Oceanographic, Craftable Vanilla Lights.
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Aquatica - 0.1 Actual Fishing
This datapack aims to add to the aquatic regions of Minecraft. The 0.1 version overhauls the fishing system.
Oceanographic
Towering islands and deep oceans
Craftable Vanilla Lights
A simple datapack that adds 4 new crafting recipes to the game : Ochre Froglight, Pearlescent Froglight, Verdant Froglight and (a better crafting recipe for) Sea Lantern.
Leviathan Ocean
Makes oceans absurdly deep. Inspired by a Wifies' video.
[Aeronautics] Overworld End Sea
Enables Create Simulated/Aeronautics' End Sea mechanic in the overworld, for void-accessible worldgen
Big Globe x Ben's Sharks
A datapack adding compatibility between the Big Globe and Ben's Sharks mods, making the mobs added by Ben's Sharks spawn in Big Globe worlds.
Balanced Craftable Heart of the Sea
A simple datapack that adds a challenging crafting recipe for the Heart of the Sea (requires a Nether Star) Intended for Skyblock, Superflat, Skyleaf Biomes and other limited overworld types.
EndlessOcean
Adds a customizable endless ocean after a certain distance from 0,0.
Unsafe Water
Now if you swim in river, sea or ocean you will take damage.
Mobs of Mythology Kobold Outpost (More integrated version)
A more integrated version of Kobold Outposts by Tierbee, with support for Quark and Upgrade Aquatic!
Nuclear sewage-核污水
This is a data pack that can be used for island survival, players will get poison and nausea when they touch water, and after drinking the water lung potion, they will be immune to poison and nausea, and of course, players can take a boat without harm!
Oceanvancements
This project adds a new advancements tab focused on ocean adventure and exploration.
Big Globe - Create: Molten Vents Compatibility
Adds compatibility between Create: Molten Vents and Big Globe by enabling aquatic vents to generate naturally in Big Globe oceans.
WORLD OCEAN
This datapack will generate a ocean only world. Play like a skyblock but in the middle of an infinite ocean.
Oceanographic: Fractured
Oceanographic with aquifers enabled
Bonemeal Renewable Coral
Bonemealing coral blocks spreads them in a warm ocean.
Toasts Abilities
A data pack that adds 7 different custom classes, each with a ability, ultimate and a passive to improve combat. They are: Wind, Electric, Space, Sculk, Life, Metal and Oceanic
Shark's Enchant Cap
Makes a Lower Max Level for Some Enchants, Aimed at Events
Elkonia Deep Coral Ocean Biome
My first Biome Datapack. this Biome is meant for 1.21.10 and is just as it says, a very deep ocean with some coral at the bottom. it's otherwise flat. Relatively 200 blocks deep, with some fish schooling, but otherwise just a flat ocean with mud, sand.
Calor
Calor is a worldgen datapack for Minecraft versions 1.21 and newer. It raises both the sea level and snow line.
Nautlius Tweaks
this datapack tweaks the Nautilus by making them more resistant to trident damage and removing the underwater mining speed penalty
Stop Killing Turtles
This datapack makes it so there are SEVERE consequences for attacking sea turtles.
Easier Sea Lanterns
Changes the current crafting recipe to a more balanced recipe.
Bedrock Ranged Mobs (Datapack)
Makes Skeletons that are underwater and trident drowneds less than 3 blocks away from the player do melee instead of ranged attacks, like in bedrock edition
Only Desert by KeyToFun
A datapack that turns the Minecraft world into an endless desert and badlands, with rare oceans and smoothed terrain.

Legacy Islands
Datapack that causes 1024x1024 "islands" of regular generation to be surrounded by forced deep oceans.
Heartless
Removes the Heart of the Sea from buried treasure chests. No conduits for you!
Mr. Burger's Mo'betta Overworld
Improves mountain peaks, ocean depth, and increases cave complexity down to -128 while maintaining the ambience of Vanilla worldgen.
Better Conduit Recipe
Adds a new recipe for the conduit, now requiring prismarine. The recipe will now require you to explore the ocean more, instead of just luck.
easy CORAL FANS
Tired of searching for warm oceans? Craft all Coral Fans easily using wool and dyes!
Sharkion
After getting caught in a terrible storm while out at sea as a young child a shiver of sharks find you and take you to their cave they raise you as a shark and you eventually mutate into a shark human hybrid a sharkion.

Water World
raises oceans to y=120 in the overworld
Localized Fishing Tables Data Pack (26.2, 1.20.1) – Catch Rare Treasures
Localized Fishing Tables Data Pack brings unique fishing catches to different environments across your world. Casting your fishing rod into a deep ocean, a lush cave, or a cold mountain stream rewards you with distinct treasures tied to that location. Standard items still appear on your hook, giving you extra surprises without taking away original […]
Water Splashes and Waves Surface Data Pack (1.21.4, 1.20.1)
Water Splashes and Waves Surface Data Pack adds visual effects when you jump into water. This data pack gives you a splash animation every time you hit the surface of a river, lake, or ocean. It makes diving and falling into water look much better with custom particles. Features: Creates a visual splash effect right […]
Ta Te's Extra Trims Data Pack (26.2, 1.21.1) – Style Your Armor Using Everyday
Ta Te's Extra Trims Data Pack expands your armor customization options with lots of new patterns and colors. It brings missing themes from the game into your wardrobe, like villages, ocean ruins, and the ender dragon. You can use everyday items to create these fresh looks instead of searching for rare templates. This pack also […]
Sunken Spires Data Pack (1.21.11, 1.20.1) – Battle New Bosses in Lost
Sunken Spires Data Pack fills your ocean biomes with the lost ruins of an advanced prismarine civilization. It adds many new places to explore underwater, from fallen cities to strange floating spikes. You can fight new mini-bosses to get special loot or brush away sand at new archaeology sites. This data pack gives the oceans […]