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Minecraft Java 1.21 Mods

Browse 21 free mods for Minecraft Java 1.21 — popular picks include Sunveil, Maxi's All Ride Mons! Mount all Cobblemon!, Unstable SMP Simulator.

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Sunveil
1.21

Sunveil

Enhanced Minecraft visuals with dynamic sun-tracking shadows, crystal-clear underwater exploration, warm golden lighting, and smooth anti-aliased shadow edges. Features realistic water reflections and optimized performance for all worlds.

96kdownloads
Maxi's All Ride Mons! Mount all Cobblemon!
1.21.1

Maxi's All Ride Mons! Mount all Cobblemon!

This data pack adds the possibility to ride all current Pokémon found in Cobblemon, for you to enjoy your journey across sky, sea and land.

66kdownloads
Unstable SMP Simulator
1.21.11fabric

Unstable SMP Simulator

Pre-configured Unstable SMP battle simulator modpack. Includes: Final Law Battle, 2v1000 Law Battle, Great Sea Law Battle, Tournament, Cindercrest Battle, Lakerek VS Wemmbu, Law End Island Defense, Mist, Smuggler Path Law Fight, Underworld

54kdownloads
CineReal — Cinematic Realism Shaders
1.21

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.

2.9kdownloads
Karma Shader Nightmare
1.18.2

Karma Shader Nightmare

A cinematic horror Minecraft shader pack that turns the dark into a living threat. Features dynamic fear mechanics, hallucination warping, drifting fog banks, a blood moon, desaturated colors, and its terrifying inverted sea ceiling.

2.2kdownloads
Zenith Shaders
1.16.5

Zenith Shaders

A lightweight, highly optimized shaderpack focusing on soft procedural 3D clouds, immersive underwater distortion, cozy light-source blooming, and beautifully balanced, non-blinding exposures for day and night.

1.4kdownloads
No Air Mining Penalty
1.21.1neoforge

No Air Mining Penalty

removes the default mining speed penalty when the player is underwater or not standing on solid ground

1.3kdownloads
NoUnderwaterFog
1.17

NoUnderwaterFog

The only shader that removes underwater fog without any other visual changes!

1.2kdownloads
One Island
1.21.9fabric

One Island

Start alone on a small island in an endless ocean. Gather resources, build, explore, and survive with what the sea provides.

882downloads
Better Sea Lantern Crafting
1.21.6

Better Sea Lantern Crafting

This datapack/mod allows you to craft Sea Lanterns in a better way

623downloads
TailWindSea pack
1.21.11fabric

TailWindSea pack

Modpack for the TailWindSea Server players.

462downloads
Expanse Shaders
1.21

Expanse Shaders

Lightweight Iris shaders: soft shadows, glowing lights with bloom, waving foliage, dimensional haze with rolling Nether steam, aurora and meteors over the End, underwater light shafts. Three presets, RU/EN settings.

365downloads
Beyond the Reef
1.21.8fabric

Beyond the Reef

Enjoy ocean cities, skylands and more!

347downloads
GrayScale Sea Lantern
1.21

GrayScale Sea Lantern

Changes and optimizes Sea lantern to black and white. Perfect for modern/aesthetic builds!

330downloads
Sharky's Better Vanilla
1.21fabric

Sharky's Better Vanilla

will increase performance and add's hud elements and other things to improve gameplay

274downloads
Emberfall Trojan War
1.21.1fabric

Emberfall Trojan War

A modpack to live in a true ancient greek world, build cities, sail oceans and more!

259downloads
Eternal Ocean
1.21.1neoforge

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.

161downloads
AquaLib
1.21

AquaLib

AquaLib is the foundational core library engineered to power the Aqua Kingdoms ecosystem and its suite of advanced oceanic features. It provides a high-performance framework for handling complex data and immersive underwater mechanics while ensuring best

84downloads
Too Many Cods Resource Pack (1.21.1, 1.20.1) – Texture Pack
1.21.1

Too Many Cods Resource Pack (1.21.1, 1.20.1) – Texture Pack

Too Many Cods Resource Pack mainly adds various cods and other fishes into Minecraft game. The naming conventions to obtain specific species are found in cod.properties. Within this slight pack, your ocean world will be full of unique and stunning creatures. Noted that Optifine is required for this pack to work. In general, it is […]

Krakens & Mermaids Resource Pack (1.21.1, 1.20.1) – Texture Pack
1.21.1

Krakens & Mermaids Resource Pack (1.21.1, 1.20.1) – Texture Pack

Krakens & Mermaids Resource Pack is a simple and reasonable pack which aims to add beautiful mermaids into Minecraft world. Within this slight pack, you can have an opportunity to enjoy beautiful performance by the mermaids in the ocean. These creatures will definitely make your game experience in the sea become more meaningful and impressive. […]

Hololive-Ocean Friends Resource Pack (1.21.1, 1.20.1) – Texture Pack
1.21.1

Hololive-Ocean Friends Resource Pack (1.21.1, 1.20.1) – Texture Pack

Hololive-Ocean Friends Resource Pack simply replaces dolphin with hololive members with 50% chance of spawn hololive oness. With this pack installed, you ocean world in the game will become much more fabulous with new creatures. With a low resolution of 16×16, you only hit a little performance to try out this interesting pack! Screenshots: Requires: […]