Minecraft Java 1.21 Mods
Browse 104 free mods for Minecraft Java 1.21 — popular picks include YUNG's Better Caves (Forge/NeoForge), Aquamirae [Neo/Forge Edition], Illager Warship.
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YUNG's Better Caves (Forge/NeoForge)
Overhauled cave generation, underground lakes and rivers, lava oceans, and more!
![Aquamirae [Neo/Forge Edition]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/curseforge/11603.webp)
Aquamirae [Neo/Forge Edition]
Ship graveyard with terrible deep sea creatures!
Illager Warship
Adds a big illager warship to the oceans
Ocean Floor - Clay Sand and Dirt
Spawns patches of Clay, Sand, and Dirt, within the Deep Dcean layer of boring gravel
Underwater Village - Oceanic Structures
Discover a lot of new oceanic structures!
YUNG's Better Caves (Fabric)
Overhauled cave generation, underground lakes and rivers, lava oceans, and more!
Myths of The Sea - Mythology Mobs!
Discover new mythological aquatic creatures, such as the Leviathan, the Kraken, the Hippocampus, and many more!
Ocean Lily Pad Village
Adds villages floating on giant lily pads to ocean biomes.
Illager War Trireme
Adds an Illager War Trireme to warm ocean biomes
Aquatic Creepers
New creepers that can appear in the oceans! Discover the new items and increase the difficulty of the ocean.
Old fisherman swamp house
adds an old fisherman’s house to swamp biomes, with villagers and aquatic mobs beneath it
Unnamed Sea
Additional structures for the sea and beach biomes, focusing on an immersive expansion for the vanilla game.
Villager Warship
Adds a big villager warship to the oceans
Lost Ocean Colosseum Runes
Adds a Lost Ocean Colosseum Runes to warm Ocean Biomes
Illager Viking Longship
Adds an Illager Viking Longship to cold ocean biomes.
Animal Garden - Harp Seal
This mod adds the harp seal as tamable mob to the frozen ocean biome!
Asian Illager Ship
Adds an Asian Illager Ship to Ocean Biomes
Animal Garden - Narwhal
This mod adds the unicorns of the sea, the narwhals to the frozen ocean biomes.
Better Cave Worlds
Datapack that creates Cave Worlds, based on the old preset, featuring all biomes, ocean caves, and most structures.
Revamped Floating Islands
Datapack that creates Floating Island worlds based on the old preset, with all biomes and structures. Additionally featuring floating oceans and rivers.
Skeleton Ghost Ship
Adds a skeleton crewed ghost ship that spawns in ocean biomes
Villager Rafts
Adds stranded Villagers drifting across the oceans on wooden rafts.
Illager Battleship
Adds an illager battleship to Ocean Biomes
Temperature Bands
Modifies world generation to place biomes into repeating temperature bands. Compatible with most worldgen mods. Now with humidity based on proximity to river and/or ocean too!
Ocean Mermaid Statue
Adds a large underwater Ocean Mermaid Statue with drowned and hidden treasure
Sunken Warrior Statue
Adds a Sunken Warrior Statue to the ocean floor
Snowy Leaves
Leaves have a white, snowy color in snowy biomes above sea level.
Lost Ocean Whale
Adds a lost whale to all ocean biomes
Villager Viking Ship
Adds 3 new villager viking ships to warm ocean biomes
Lavaflow
Completely overhauled Nether: Lava rivers on 2 heights with lavafalls between them, proper valleys, oceans, and new biomes and structures.
Kislevemon
This is a Cobblemon addon which comes with currently 19 fakemons, Shiny and non shiny! they can be found in the oceans, deserts and forests.
Ocean Revamp
New ocean biomes to improve your aquatic journeys in vanilla
Breath.
This datapack adds steam from the mouth in cold biomes & bubbles underwater.
CineReal — Cinematic Realism Shaders
CineReal — cinematic realism shaders for Minecraft (Iris + Sodium): filmic color grading, SSR reflections on water & blocks, block-shaped volumetric clouds with matching shadows, biome fog, and underwater god rays.
d3v_c's Terrain Overhaul
Fabric worldgen overhaul for 1.21.11: taller mountains, deeper terrain, rebalanced biome climate zones, more natural caves, and improved underwater shaping for realistic Overworld landscapes.
Ocean Floating Lifebelts
Adds 9 new floating lifebelts to ocean biomes