Data Packs for Minecraft Java
Browse 71 free data packs for Minecraft Java — popular picks include [Aeronautics] Overworld End Sea, EndlessOcean, Oceanvancements.
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[Aeronautics] Overworld End Sea
Enables Create Simulated/Aeronautics' End Sea mechanic in the overworld, for void-accessible worldgen
EndlessOcean
Adds a customizable endless ocean after a certain distance from 0,0.
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
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.

Legacy Islands
Datapack that causes 1024x1024 "islands" of regular generation to be surrounded by forced deep oceans.
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.

Water World
raises oceans to y=120 in the overworld
Continents Data Pack (26.2, 1.20.1) – Reshape The World
Continents Data Pack is a WorldGen project addon able to force your world to generate with large oceans, with biomes and lands generating as continents, archipelagos and islands for your world to stay playable. It was made to be compatible with any existing WorldGen mod, including Terralith, and is compatible with the Vanilla large biomes […]
Terralith Data Pack (26.2, 1.20.1) – Biomes, Exploration
Terralith Data Pack adds more than 95 new biomes to Minecraft and reworks almost every vanilla biome, using nothing but vanilla blocks. This pack also brings in terrain shapes the base game never had, from deep canyons and shattered land to floating islands and ocean trenches. Caves get the same treatment, with their own biomes […]
Lavaflow Data Pack (1.21.11) – A Dynamic And Deadly Nether Overhaul
Lavaflow Data Pack transforms the Nether with multi-layered lava rivers, cascading lavafalls, vast oceans, and properly shaped valleys. Explore new biomes and structures in a more immersive and treacherous underworld! Enjoy playing this data pack! Features: Lavaflow completely overhauls the nether. Instead of the random noise of the vanilla nether, Lavaflow features specifically crafted terrain, […]
Revamped Floating Islands Data Pack (26.1.2, 1.20.1) – Explore A World Above The Clouds
Revamped Floating Islands Data Pack transforms your Minecraft world generation, creating a breathtaking floating island landscape that includes all biomes and structures. Experience a unique and immersive environment with enhanced features such as better oceans, rivers, and even a Floating Nether Add-on. Enjoy playing this data pack! Features: Build upon the vanilla floating islands world […]
Superflat Dimensions Data Pack (1.21.10, 1.20.1) – All Dimensions, but Flat
Superflat Dimensions Data Pack changes how your Minecraft worlds are built. It makes every dimension, including the Overworld, Nether, and End, completely flat. Unlike the regular Superflat world option, this pack keeps all the different biomes. This means you can still explore flat snowy plains or vast oceans. You will also find normal structures like […]
Craftable Tridents Data Pack (1.21.11, 1.20.1) – Craft Tridents with Breeze Rods
Immerse yourself in aquatic adventures with the Craftable Tridents Data Pack. This innovative addition to Minecraft allows you to craft your own tridents, unlocking the power of the seas for resource gathering, combat, and underwater exploration. Features: Adds a crafting recipe for the trident in a balanced way! Screenshots: Craftable Tridents Data Pack Download Links […]
Aetherial Islands Data Pack (1.21.10, 1.20.1) – Voyage Of Discovery And Wonder
Aetherial Islands Data Pack creates a whimsical floating islands world, with mountains, rivers, and floating ocean bowls. Features: This world generation datapack seeks to redefine the standards for floating island generation. The typical floating island generation tends to be large fragmented land masses. Not to mention they don't have hills, rivers, or oceans. But this […]
EMD123's Ships Data Pack (1.21.4, 1.20.1) – Adventure of the Seas
EMD123's Ships Data Pack introduces a new adventure structure to make the ocean more interesting. The ocean is usually considered the most empty and most boring biome in Minecraft. This simple worldgen data pack aims to make the sea a bit more exciting by adding in Illager Ship. There are a few kinds of Illager […]
The Middlelands Data Pack (1.21.4, 1.20.6) – A Miners Paradise
The Middlelands Data Pack introduces a brand new dimension, a treasure trove for miners and explorers alike. Prepare to be awestruck by its unique biomes, vast resources, and thrilling challenges. Features: Diamonds & Gold appear abundantly in the form of ore veins. Giant caves, deep networks, lava oceans. Each biome has its own terrain, challenges, […]
Archipelago Data Pack (1.21.4, 1.20.1) – Majestic Islands, Stunning Terrain
Archipelago Data Pack generates a world of breathtaking islands, each with unique terrain and features. Perfect for players who love exploration, survival challenges, or building in scenic, oceanic environments! Enjoy playing this data pack! Features: Archipelago turns you minecraft world into a unique archipelago of islands while also making mountains an shores a bit better! […]
Angel Islands Data Pack (1.21.3, 1.20.1) – Soar Through the Skies
Angel Islands Data Pack reshapes your Minecraft world, replacing the traditional terrain with a stunning archipelago of floating islands. Enjoy playing this data pack! Features: This worldgen data pack adds floating islands above the world's oceans whilst also retaining regular land generation! By default, islands are fairly frequent yet scattered over the oceans. Screenshots: Angel […]
No More Grass and Kelp Data Pack (1.21.1, 1.20.1) – A Cleaner and Minimalist Landscape
No More Grass and Kelp Data Pack removes grass, tall grass, kelp, seagrass, and ferns from Minecraft's world generation, creating a more barren and simplified terrain. Perfect for players who prefer a minimalist aesthetic or want more control over their world’s vegetation, offering a unique and clean visual experience in both land and sea biomes. […]
No More Ocean Ruins Data Pack (1.21.1, 1.20.1) – Clearer Oceans for Exploration
No More Ocean Ruins Data Pack removes ocean ruins from Minecraft's world generation, offering a cleaner and more open underwater environment. Ideal for players who prefer unobstructed ocean exploration or want to focus on creating their own underwater structures without the presence of these pre-existing ruins. Enjoy playing this data pack! Features: Removes ocean ruins […]
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 […]
JJThunder To The Max Data Pack (1.21.1, 1.20.1) – Transform Your World
JJThunder To The Max Data Pack introduces a whole new world generation experience based on JJThunder King of the Hills. It adds mountains that are 1800 blocks tall as well as flat plains, deep oceans, and smooth transitions. This data pack also introduces new noise caves that replaces old ones. They start out small and […]
Qrafty's Oilrigs Data Pack (1.21.1, 1.20.1) – Harvest the Power of the Depths!
Oilrigs Data Pack – a transformative addition to your Minecraft experience. Unleash the power of underwater resource extraction as you delve into the ocean's depths to tap into hidden oil reservoirs. Enjoy playing this data pack! Features: Underwater Oil Exploration: Plunge into the ocean's mysteries to discover hidden oil reservoirs beneath the waves. This data […]
Franken Fish Data Pack (1.20.4, 1.19.4) – Embark On A Thrilling Aquatic Adventure!
Dive into the depths of Minecraft's aquatic world with Franken-Fish Data Pack, a thrilling data pack that introduces a new twist to fishing and marine exploration. In this innovative addition to your Minecraft experience, players encounter mysterious and mutated fish variants known as Franken-fish, each possessing unique traits and abilities. Whether you're a seasoned angler […]
Distant Floating Islands
A minecraft worldgen datapack to create sparse floating islands over a large ocean, wholly customisable (with guide)
No Ocean Monument
In a simple way, using the game configuration, it prohibits the generation of Ocean Monument, Ruined Portal and Shipwreck.
Less Kelp and Seagrass
Substantially reduces the amount of kelp and seagrass in oceans and rivers.
All Water Data Pack (1.17.1, 1.16.5) – World Full Of Water!
All Water Data Pack is a data pack that introduces you to a new type of world to survive in Minecraft! This world generation data pack makes your entire world ocean: all ocean biomes are included, even those that don't naturally generate in vanilla worlds. Structures still generate, nether and end are still accessible. No […]
Ocean Only Generation
This project makes only ocean biomes generate
Aloria World Gen
This pack brakes the world into smaller islands and makes has a fuller deeper ocean
Origins Mystic's Class Pack Data Pack (1.20.1) – Unique Roles to Fit
Origins Mystic's Class Pack Data Pack adds 20 unique player classes for Origins Mod. It equips you with specialized passives and helpful perks tailored to different survival playstyles, ranging from cave exploration and deep-sea diving to heavy combat and base building. The pack functions directly alongside the base mod without requiring extra addons. It also […]