Minecraft Java 1.21 Mods
Browse 104 free mods for Minecraft Java 1.21 — popular picks include Biome Compatibility Patch, Puris Eco Ocean, oceans biomes.
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Biome Compatibility Patch
Renames content to preserve compatibility between the 4 major biome mods as well as Terralith, Environmental, Atmospheric, Autumnity, Upgrade Aquatic, Wetland Whimsy, and Jaden's Nether Expansion.
Puris Eco Ocean
This is a passion project from zi_jian. It adds 10 brand-new ocean biomes, 29 new entities, along with corresponding items, materials and decorative blocks. I'm still a beginner mod developer, so feel free to report any bugs you encounter.
oceans biomes
Create worlds made entirely of oceans with a simple configuration screen. Choose the ocean biome, tweak depth, and enable or disable islands and ocean structures.
Aqua Forge
This is a data pack that will generate an ocean biomes only world.
Aquarius Trilogy
Add a new aquatic dimension featuring some refreshing biomes and structures
Motley Fins
Updates aquatic biomes, adding blocks and a new mob!
Eternal Ocean
An ocean world with creatable ships along with many new fishes and other creatures. Swimming and fishing are overhauled, along with plenty of new structures and biomes to explore.
Ocean/River/Lush Caves Grass Everywhere!
Changes the Grass colormap so it always matches the Ocean/River/Lush Caves biome color – Part of the "Oh My Colormap!" collection.
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.
Lava Ocean
Adds A New Biome Called Lava Ocean!
Ocean/River/Lush Caves Foliage Everywhere!
Changes the Foliage colormap so it always matches the Ocean/River/Lush Caves biome color – Part of the "Oh My Colormap!" collection.
Boilzone
Adds a new magma themed ocean biome.
OceanBreath
Water breathing in ocean biomes.
OceanBreath
Water breathing while in ocean biomes.
Cobblemon Seavls Bizarremons Resource Pack (1.21.1, 1.20.1)
Cobblemon Seavls Bizarremons Resource Pack expands the main Cobblemon mod with over 30 weird and wonderful custom creatures. It brings totally new evolutions and regional forms to your game. You can find these strange monsters hiding in the nether, frozen oceans, and jungles. The pack also generates giant floating cities in the deep ocean full […]
Repurposed Structures Better Ocean Monuments Compat Datapack Resource Pack (1.21.1, 1.20.1)
Repurposed Structures Better Ocean Monuments Compat Datapack Resource Pack adds visual compatibility for Repurposed Structures and YUNG's Better Ocean Monuments. It changes the alternative monuments to match the building style of YUNG's structures. Features: Updates the layout of alternative monuments to match the new design. Changes the exterior and interior for the desert, jungle, icy, […]
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 […]
AL's Scorpions & Crabs Resource Pack (26.2, 1.21.11) – Texture Pack
AL's Scorpions & Crabs Resource Pack is a standalone add-on that brings a fresh variety of arthropods to Minecraft, inspired by AL's Spiders Revamped. With simplified models to match the vanilla spider style, this pack introduces three Scorpion variants for desert biomes and multiple Crabs for aquatic areas, including a unique Blue Fiddler Crab in […]
Item Glow Data Pack (26.2, 1.21.1) – Never Lose Track Of Dropped Items Again
Item Glow Data Pack makes all nearby dropped items glow subtly, helping you easily locate them even in dark caves, forests, or underwater. Whether you're mining, fighting mobs, or just accidentally dropped something valuable, this pack ensures you won't leave anything behind. A perfect quality-of-life addition for any survival playthrough! Enjoy playing this data pack! […]
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, […]
L's Ocean Trader Mod (1.21.4, 1.20.1) – New Ocean Profession
L's Ocean Trader Mod adds a new villager profession tied to ocean and coastal environments. The Ocean Trader can be found living in a lighthouse structure that generates in beach biomes, or created manually by placing a dedicated trading block as a workstation. Features: Adds a new villager profession called the Ocean Trader. Lighthouse structure […]
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 […]
Revamped Floating Islands Mod (1.21.10, 1.20.1) – Floating Rivers and Oceans in Every Biomes
Revamped Floating Islands Mod enhances Minecraft's classic floating islands, bringing in all biomes and structures, from floating rivers to oceans. Floating bodies of water can now be found across biomes, using aquifers to make the landscape feel alive. The mod also includes tweaks to improve the overall experience of exploring these sky-high worlds. Features: Floating […]
Simple Finite Water Control Mod (1.21.1, 1.20.1) – Your Farm Needs a River Now
Simple Finite Water Control Mod lets you decide where infinite water sources can be made in your world. It works by using a biome whitelist or blacklist, allowing you to permit or deny water source creation in specific areas. By default, the mod only allows infinite water to form in ocean, river, and beach biomes. […]
Better Single Biome Mod (1.21.4, 1.21.1) – Improves Single Biome World Generation
Better Single Biome Mod makes a few changes to the world generation to make worlds generated in single biome mode a lot better. All biomes are supported except water biomes and mangrove swamp. The mod lowers the sea level, lowers the geode generation level, improves underwater vegetation, increased structure generation, etc. Features: World generation tweaks […]
Xali's Enhanced Biomes: River & Pond Resource Pack (1.21.1, 1.20.1) – Texture Pack
Xali's Enhanced Biomes: River & Pond Resource Pack enhances your Minecraft rivers and ponds with more natural and immersive details. It focuses specifically on improving the look of aquatic areas. Screenshots: Xali's Enhanced Biomes: River & Pond Resource Pack Download Links For Minecraft 1.21.x 16x: Download from Server 1 – Download from Server 2
Enchanted Villagers Mod (1.21.5, 1.20.1) – Magical Traders And Ocean Towers
Enchanted Villagers Mod introducing magical villagers with powerful new trade options. Found in unique ocean-based trader towers, each villager specializes in rare and enchanted goods. Features: New enchanted villagers with enhanced and magical trades. Custom trader towers spawn in specific ocean biomes: Spawn Egg Trader – Deep Frozen Ocean Item Trader – Deep Frozen Ocean […]
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, […]
Night Vision Resource Pack (1.21.1, 1.20.1) – Texture Pack
Night Vision Resource Pack significantly enhances visibility in low-light conditions, making nighttime exploration, deep cave mining, and underwater adventures much more manageable. With improved lighting and clearer visuals, this pack removes the need for excessive torches or potions, allowing players to see in the dark effortlessly. Whether you're navigating dense forests, exploring vast oceans, or […]
Austin's Biomes Expansion Data Pack (1.21.4, 1.20.6) – Vanilla Plus Overworld Biome Enhancements
Austin's Biomes Expansion Data Pack introduces tweaks, additions, and overhauls to Minecraft’s Overworld biomes, enhancing their diversity and beauty while staying true to the vanilla experience. Perfect for players who want a richer, more immersive world to explore and build in! Enjoy playing this data pack! Features: New surface, cave, and ocean biomes! (See the […]
HexLands II Mod (1.21.1, 1.20.1) – Hexagon Biomes
HexLands II Mod changes the world drastically by generating narrow hexagon biomes and connecting them all together. At first glance, the world seems twisted and out of order since players might find themselves walking over snow in one hexagon and swimming over an ocean in another. To the average players, we would never suggest they […]
Tax' Deep Villager Mod (1.21.1, 1.20.1) – Explore Underwater Villages
Tax' Deep Villager Mod adds underwater villages to the game. With this mod, players can discover new villages located beneath the ocean, introducing a fresh environment to explore and interact with villagers in an aquatic setting. Features: Adds fully functional undersea villages to Minecraft Expands village exploration into underwater biomes Enhances the diversity of village […]
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. […]
Fisherman's Trap Mod (1.21.1, 1.20.1) – Harvest The Aquatic
Fisherman's Trap Mod introduces the Fish Trap, a passive tool for gathering fish using crops as bait. It provides a more controlled fishing experience. Place the fish trap in water biomes such as lakes, oceans, or rivers to yield catches. Features: Bread -> Any Fish [Cod; Salmon; Tropical Fish; Pufferfish] Beetroot -> Only Cod Sweet Berries -> Only […]
NotActuallyTerry's Tropicraft Mod (1.21.1, 1.20.1) – Tropical Adventures Await
NotActuallyTerry's Tropicraft Mod introduces a vibrant and immersive tropical dimension to your Minecraft world. This mod allows players to explore lush rainforests, build sandcastles on expansive beaches, and dive into deep oceans. Features: Tropical Dimension: Discover a new tropical world filled with unique biomes and landscapes. Dense Rainforests: Explore thick, verdant forests teeming with new […]