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Minecraft Java 1.21 Mods

Browse 750 free mods for Minecraft Java 1.21 — popular picks include Uncharted Seas Mod (1.21.1) – Build Luxurious Ocean Liners and Custom Ships, Ruined MC Live Mod (1.21.10) – Ride Giant Pufferfish and Fight Roman Armies, The Submarine Neo Forge Mod (1.21.1, 1.20.1) – Search for Underwater Ruins.

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Uncharted Seas Mod (1.21.1) – Build Luxurious Ocean Liners and Custom Ships
1.21.1

Uncharted Seas Mod (1.21.1) – Build Luxurious Ocean Liners and Custom Ships

Uncharted Seas Mod gives you all the blocks you need to build massive ships and luxurious ocean liners. You can recreate famous ships like the Titanic or design your own custom vessels for roleplay. This mod packs in lots of naval decorations to make your boat interiors look great. It works perfectly alongside other moving […]

Ruined MC Live Mod (1.21.10) – Ride Giant Pufferfish and Fight Roman Armies
1.21.10

Ruined MC Live Mod (1.21.10) – Ride Giant Pufferfish and Fight Roman Armies

Ruined MC Live Mod brings a bunch of crazy and funny ideas from a live chat straight into your game. It fills your world with weird new mobs, joke weapons, and silly features that change how you play. You can meet strange sea creatures, fight ancient armies, and use items in ways you never expected. […]

The Submarine Neo Forge Mod (1.21.1, 1.20.1) – Search for Underwater Ruins
1.21.1

The Submarine Neo Forge Mod (1.21.1, 1.20.1) – Search for Underwater Ruins

The Submarine Neo Forge Mod lets you build and drive your own underwater ship to travel the ocean. It adds a brand-new material called Stainless Steel, which comes from a special ore you can mine. With this mod, you no longer have to worry about running out of breath while looking for underwater ruins or […]

Shinea L's Prehistoric Expansion Mod (1.21.8, 1.20.1)
1.21.8

Shinea L's Prehistoric Expansion Mod (1.21.8, 1.20.1)

Shinea L's Prehistoric Expansion Mod fills your world with ancient dinosaurs, extinct animals, and mythical beasts. Each creature gets its own special animations, daily habits, and useful drops to make survival more exciting. Features: Tameable Mounts: You can tame a Triceratops with ferns or ride a Hippocampus across the ocean using fish. New Survival Gear: […]

Hybrid Birds Mod (1.21.11, 1.20.1) – Farm Wild Birds and Cook Massive Meat
1.21.11

Hybrid Birds Mod (1.21.11, 1.20.1) – Farm Wild Birds and Cook Massive Meat

Hybrid Birds Mod populates your world with many new flying and flightless birds. It gives you fresh ways to gather food, breed animals, and interact with wildlife in different biomes. Features: Spawns several new types of birds across the world, from forests to oceans. Adds tiny baby versions for every single new bird type. Brings […]

Sea Weapons Mod (1.21.11) – Smash Hostile Mobs with Heavy Ocean Weapons
1.21.11

Sea Weapons Mod (1.21.11) – Smash Hostile Mobs with Heavy Ocean Weapons

Sea Weapons Mod adds heavy ocean-themed gear to your game for when standard tridents just do not cut it. It gives you unique items like a giant hammer and a special sword. You get new ways to attack, jump, and pull yourself around the world. The mod also includes special enchantments and cosmetic skins to […]

Unnamed Sea Mod (1.21.11, 1.20.1) – Sail Across Oceans Filled with Ships
1.21.11

Unnamed Sea Mod (1.21.11, 1.20.1) – Sail Across Oceans Filled with Ships

Unnamed Sea Mod populates your ocean and beach biomes with new, handcrafted buildings. The mod adds life to empty waters by generating different types of structures for you to find while sailing. You can visit these places for a fun challenge or simply enjoy how they change the look of the coastlines. Features: Ocean Structures: […]

Myths of the Sea Mod (1.21.1, 1.20.1) – Battle Mythical Sea Monsters
1.21.1

Myths of the Sea Mod (1.21.1, 1.20.1) – Battle Mythical Sea Monsters

Myths of the Sea Mod fills your oceans and swamps with legendary sea monsters. It gives you new boss fights and rare loot to collect. You can hunt down giant creatures for special materials or find peaceful animals to ride across the water. Features: Tameable Mounts: You can feed raw fish to a Hippocampus to […]

No Mans Land Mod (1.21.1) – Roam Through Upgraded Biomes and Encounter New
1.21.1

No Mans Land Mod (1.21.1) – Roam Through Upgraded Biomes and Encounter New

No Mans Land Mod transforms your entire Minecraft world with fresh biomes, better animals, and beautiful landscapes. It takes the normal places you know, like forests and oceans, and makes them look much better with careful details. You will find brand-new areas to explore, extra plants everywhere, and updated dungeons hidden underground. The mod also […]

Sky Ocean Mod (26.2, 1.21.11) – QOL SkyBlock Toolkit
1.21.11

Sky Ocean Mod (26.2, 1.21.11) – QOL SkyBlock Toolkit

Sky Ocean Mod adds item value tracking, storage search, Slayer highlights, fishing tweaks. Features: Item Info: View item value breakdowns with a keypress. Storage Search: Instantly search across your ender chest, vault, and more. Fishing Enhancements: Trophy tracking, lava-to-water visuals, hotspot highlights. Slayer & Mining Tools: Highlight bosses, tweak HOTM progress, and commissions. Garden Upgrades: […]

Fishing Expansion Mod (26.2, 1.21.1) – Catches Special Fish And Loot
1.21.1

Fishing Expansion Mod (26.2, 1.21.1) – Catches Special Fish And Loot

Fishing Expansion Mod completely changes how you catch things in the water. It lets you find special items, maps, and strong armor just by using your rod. You can even pull real monsters out of the sea and fight a scary new boss. Features: Water Trail: Arrows leave a path of water behind them. Ender […]

Katters Structures Ambient Mod (26.2, 1.21.1) – New Ambient Structures
1.21.1

Katters Structures Ambient Mod (26.2, 1.21.1) – New Ambient Structures

Katters Structures Ambient Mod is a sub-project of the very popular Katters Structures mod. This mod introduces only the ambient structures from the original Katters Structures mod into your game. This includes a variety of different structures like windmills, graveyards, ocean ships, fossils, etc. The mod also introduces some new enchantments into the game. Details […]

Sea Life Mod (26.2, 1.21.1) – Diverse Fish And Aquatic Life
1.21.1

Sea Life Mod (26.2, 1.21.1) – Diverse Fish And Aquatic Life

Sea Life Mod is a mod for Minecraft that makes oceans and rivers more vibrant by adding many new fish species, items, and underwater interactions. Features: Expands the aquatic world with dozens of fish and aquatic creatures that naturally occur in suitable biomes – from the deep, cold ocean to rivers, swamps, and tropical coral […]

DnT Ocean Monument Overhaul Mod (26.2, 1.21.1) – Monuments Worth Exploring
1.21.1

DnT Ocean Monument Overhaul Mod (26.2, 1.21.1) – Monuments Worth Exploring

DnT Ocean Monument Overhaul Mod reimagines Ocean Monuments as massive, modular dungeons packed with treasure, danger, and variety. It transforms the once-static structures into sprawling, randomized labyrinths that reward exploration and challenge. Features: Ocean Monuments become rare jigsaw structures, similar in rarity to Woodland Mansions Each monument is split into 7 sections, each with 4 […]

Awesome Dungeon Ocean Mod (1.21.11, 1.20.1) – Underwater Dungeons & Temples
1.21.11

Awesome Dungeon Ocean Mod (1.21.11, 1.20.1) – Underwater Dungeons & Temples

Awesome Dungeon Ocean Mod adds the spawning of underground structures beneath the water in Minecraft. Essentially, these are regular dungeons with cool loot, but with one key twist-they are all flooded. That means looting them won’t be as easy; you’ll need to come prepared. Underwater, they look mysterious and enigmatic, as if an ancient civilization […]

Devil May Cry Weapons Reborn Mod (1.21.8, 1.20.1)
1.21.8

Devil May Cry Weapons Reborn Mod (1.21.8, 1.20.1)

Devil May Cry Weapons Reborn Mod brings some very fearsome weapons from the Devil May Cry game series into Minecraft. The weapons range from handheld swords with teeth to guns with firepower. All of these weapons can be found in loot chests found in mines, strongholds, desert pyramids, jungle temples, underwater ruins and village blacksmiths. […]

Illager Structures Mod (1.21.1, 1.20.1) – Raid Massive Illager Bases
1.21.1

Illager Structures Mod (1.21.1, 1.20.1) – Raid Massive Illager Bases

Illager Structures Mod fills your world with over 30 new enemy bases to explore and conquer. It spreads different types of illager buildings across many biomes, from snowy oceans to tall mountains. You can find everything from small camps to huge factories and pirate ships. This mod gives you more places to fight enemies and […]

Underwater Enchanting Mod (1.21.11, 1.20.1) – Full Enchantment Support Underwater
1.21.11

Underwater Enchanting Mod (1.21.11, 1.20.1) – Full Enchantment Support Underwater

Underwater Enchanting Mod allows you to use enchanting underwater! Now the enchantment table can detect bookshelves placed underwater, enabling you to reach maximum enchantment levels even below the surface. Features: Enchantment tables now recognize nearby bookshelves even when submerged, allowing access to maximum enchantment levels. The mod follows standard bookshelf detection rules-just underwater. You can […]

All HUD Bars Mod (1.21.11, 1.20.1) – Makes HUD Elements In Bar Form
1.21.11

All HUD Bars Mod (1.21.11, 1.20.1) – Makes HUD Elements In Bar Form

Most of the HUD elements in the game are shown as icons. This includes the health bar, the hunger bar, underwater air level, etc. As the name suggests, All HUD Bars Mod is here to make all of these HUD elements appear as bars instead of icons. Features: Changes the HUD elements to bars instead […]

Mermod (1.21.11, 1.20.1) – Transform Into a Mermaid
1.21.11

Mermod (1.21.11, 1.20.1) – Transform Into a Mermaid

Mermod is a unique mod that comes with an interesting new feature. This mod adds a magical necklace that can be crafted by following the recipes given below. This necklace can be placed in a player’s chestplate armor slot. A player wearing this necklace will instantly transform into a mermaid upon touching water. The transformation […]

Torches in Water Mod (1.21.11, 1.20.1) – Glow Ink Torch
1.21.11

Torches in Water Mod (1.21.11, 1.20.1) – Glow Ink Torch

Illuminate the depths of Minecraft's aquatic landscapes with the Torches in Water Mod! Introducing the Glow Ink Torch, a revolutionary addition crafted from glow ink sacs and sticks, designed to pierce through the darkness even underwater. With the ability to be placed in water sources or flowing water, these torches provide essential illumination where traditional […]

Boatism Mod (1.21.1) – Boat Propeller, Make Your Boat Go Faster
1.21.1

Boatism Mod (1.21.1) – Boat Propeller, Make Your Boat Go Faster

Boatism Mod enhances sea travel by adding customizable boat engines to the game. This mod aims to transform the slow, basic boating experience of vanilla Minecraft into something faster and more dynamic. With this mod, you can attach a boat engine entity to any boat (including those from other mods that extend the BoatEntity class), […]

RPG: Better Elder Guardian Mod (1.21.1, 1.20.1) – Powerful Elder Guardian & More!
1.21.1

RPG: Better Elder Guardian Mod (1.21.1, 1.20.1) – Powerful Elder Guardian & More!

The Elder Guardian is a mini boss that is found in ocean monuments. It is a powerful mob that uses charged attacks to fight the player. Defeating it will grant the player control over the ocean monument, allowing him to loot the structure and to build guardian farms. For many players, fighting the Elder Guardian […]

Ocean Floor Mod (1.21.1, 1.20.1) – Clay, Sand and Dirt
1.21.1

Ocean Floor Mod (1.21.1, 1.20.1) – Clay, Sand and Dirt

Ocean Floor Mod adds patches of clay, sand and gravel into Ocean and Deep Ocean like in earlier versions of Minecraft. Features: Adds patches of clay, sand, and dirt to ocean biome floors, replacing the default gravel-heavy terrain. Works across all ocean temperatures, ensuring a more diverse underwater landscape. Players can adjust the frequency and […]

Create Guardian Beam Defense Mod (1.21.1, 1.20.1) – Laser Defense Systems
1.21.1

Create Guardian Beam Defense Mod (1.21.1, 1.20.1) – Laser Defense Systems

Create Guardian Beam Defense Mod is an addon for Create Mod that adds in stationary laser defense units themed around Guardians and Ocean Monuments that are capable of automatically locking on to hostile mobs and damaging them over time in frequent bursts. There are currently two primary types of such laser defense units. Features: Basic […]

No Frills Mod (26.1.2, 1.21.11) – Hypixel QoL Toolkit
1.21.11

No Frills Mod (26.1.2, 1.21.11) – Hypixel QoL Toolkit

No Frills Mod offers a massive toolkit of UI tweaks, solvers, visual enhancements, and bug fixes for Hypixel Skyblock. Features: No loading screen, hidden overlays, fewer particles. Custom swing speed, disable fire overlay, clean viewmodel. Etherwarp highlight, price tooltips, rare mob alerts. Chronomatron, Ultrasequencer, Melody, Terminals, Devices. Track bosses, mobs, power, bobbers, and sea creatures. […]

Better Impaling Mod (26.1.2, 1.21.1) – Rule The Seas With Better Impaling
1.21.1

Better Impaling Mod (26.1.2, 1.21.1) – Rule The Seas With Better Impaling

Dive into the depths of Minecraft's oceans with the Better Impaling Mod and unleash the true power of the sea! With this mod, your trusty trident becomes a fearsome weapon against the denizens of the deep, turning the tides in your favor against the relentless Drowned. However, with great power comes great peril. Beware, for […]

Ocean's Delight Mod (1.21.11, 1.20.1) – Adds Seafood Meals
1.21.11

Ocean's Delight Mod (1.21.11, 1.20.1) – Adds Seafood Meals

Ocean's Delight adds new seafood meals to the game. This addon for Farmer's Delight brings more culinary options focused on ocean creatures. You can cook and eat monsters and animals from the deep sea. Features: Seafood Meals: Cook dishes using creatures and items found in the ocean. Elder Guardian Dish: Prepare a Cabbage Wrapped Elder […]

YUNG's Better Ocean Monuments Mod (1.21.11, 1.20.1) – Larger, Better Rewards
1.21.11

YUNG's Better Ocean Monuments Mod (1.21.11, 1.20.1) – Larger, Better Rewards

YUNG's Better Ocean Monuments Mod is a mod focused on improving ocean monuments, making the exploration of these underwater structures more engaging and rewarding. Now, exploring ruins and underwater structures won't feel tedious. The mod transforms ocean monuments into much larger structures with completely random designs, ensuring plenty of variety. Additionally, during exploration, players can […]

FTB OceanBlock 2 Modpack (1.21.1) – Ocean-only Survival Progression
1.21.1

FTB OceanBlock 2 Modpack (1.21.1) – Ocean-only Survival Progression

FTB OceanBlock 2 Modpack places you alone on an unknown planet covered entirely by an endless ocean. Your escape pod has crashed, there is no land in sight, and no immediate rescue. Beneath the water, something feels wrong. You are not the first to arrive on this world, but you are the only one left. […]