Minecraft Java 1.21 Mods
Browse 99 free mods for Minecraft Java 1.21 — popular picks include SeasonalBehaviors, From the Deep, Pedro II's End Update.
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SeasonalBehaviors
SeasonalBehaviors brings dynamic, immersive seasonal changes to your Minecraft world—altering weather, mob behaviors, crop growth, and villager trades to create a living, evolving environment. Experience nature’s cycle like never before.
From the Deep
Reel in fish and foes, with changing odds based on biome and time.
Pedro II's End Update
This Minecraft mod adds the End Update to the game with 3 new biomes, 3 new structures, 1 mob, and 2 powerful weapon.
Mod but my Friends decided what's in it
lots of stuff, a huescape dimension, dragons, epic cave biome with game-changing mob, eldritch horror spider, Son Goku and more!!!1!!!
Cavernous Unearthed
This mod adds vanilla style cave biomes and features.
Savi Over a game
My first mod introducing: Savi, Biome and more!
Mainworld
Mainworld... mod introduces several new mechanics,items,and armor. it also adds about 30 diffferent structures,each suited to its own biome,as well as new biomes. Explore the world and discover its fill potential, know that they are always watching...
Telum Solaris - At the Forest's Edge
Telum Solaris aims to add new weapons, armor and boss to minecraft for every stage of minecraft's progression. It is currently my first and only project!
Tototerror
Buffs Totodile into a freak of nature
TeaTM's Arctic Expansion
This is a relaxed non-combat mod that expands the arctic biomes with mechanics, mobs, items, and decorations.
The Voidland
This mod ads a completely new biome: The Voidland, some new gear (armor still not included(will be added in future)) and new mobs!
Grim and Bleak Mod (1.21.1, 1.20.1) – Place Where No One Lives
Grim and Bleak Mod is an ambience-focused mod that blends exploration, survival mechanics, and dark atmosphere. It introduces a shadowy dimension called Limbo, filled with hostile creatures, rare resources, and high-risk progression. Actions taken inside Limbo can also affect the Overworld. Features: New dark dimension called Limbo with unique biomes and enemies Atmosphere-focused semi-horror gameplay […]
Derec's Earth Mobs Mod (1.21.4, 1.20.1) – New Mob Variants And Creatures
Derec's Earth Mobs Mod introduces multiple animal variants with unique behaviors, rare spawns, and interaction mechanics, alongside new hostile mobs and constructible golems. Its focus is on visual variety, environmental interaction, and expanded mob behavior rather than system overhauls. Features: Adds multiple pig variants, including the rare Muddy Pig found across all biomes Introduces new […]
Upgraded Mobs Data Pack (1.21.11, 1.20.1) – New Attacks and Abilities to Mobs
Upgraded Mobs Data Pack is a data pack that adds new attacks, mechanics, and features to many of the mobs you know and love. Have you ever felt that after a while, Minecraft gets too easy? Have you ever wished that you could make it more challenging without the glass cannon nature of the hard […]
Brazil Legends Mod (1.21.1, 1.20.1) – Folklore Creatures And Mythic Gameplay
Brazil Legends Mod introduces creatures, weapons, and mechanics inspired by Brazilian folklore. The mod integrates mythic beings with behaviors and biome-based spawning.Text Features: Folklore creatures such as Saci, Cuca, Mapinguari, Headless Mule, and Capelobo. Unique AI, combat, and interaction mechanics for each entity. Biome-specific spawning tied to Brazilian myth themes. Additional weapons and systems that […]
Luminous Nether Mod (1.21.1, 1.20.4) – A Nether Alive with Danger
Luminous Nether Mod expands the Nether with two new biomes, lots of new mobs, and a variety of building blocks and decorations. This mod adds new gameplay mechanics, loot to find, and dangerous areas to explore. It makes the Nether a more lively and challenging place. Features: Adds two new biomes to the Nether: the […]
Create Mechanical Spawner Mod (1.21.1, 1.20.1) – Generates Mobs with Rotation Power
Create Mechanical Spawner Mod adds a mechanical spawner block to the game that uses rotational force to generate mobs. Features: Random Spawn Fluid Biome-dependent random generation Specific Liquid for Mobs Configurable Settings Stress Minimum speed Fluid capacity Spawn point max range Processing time multiplier (or divider). Allows modification of time for all recipes without editing […]
Nether Depths Upgrade Mod (1.21.1, 1.20.1) – New Flora, Fauna and Mechanics
With Nether Depths Upgrade Mod, the Nether will gain an under-lava world. Nether Depths Upgrade introduces flora and fauna to the lava seas, allowing new species of fish, sub-lava mobs, structures, and even entire biomes to inhabit the fiery depths. Features: Lava Fishing: Players can fish in lava, catching unique Nether fish. Nine New Fish […]
Galosphere Mod (1.21.1, 1.20.1) – The Diverse World of The Underground
Galosphere Mod is a mod designed to enhance and expand diversity in Minecraft's underground world. This mod focuses on generating new biomes, creatures, mechanics, blocks, items, effects, achievements, and more. The new underground terrain generation introduced by this mod adds crystals and new mineral resources to the game. These new minerals and materials will allow […]
Gigeresque Mod (1.21.1, 1.20.1) – Biomechanical Terror
Gigeresque Mod transforms Minecraft into a haunting and thrilling survival horror experience. By introducing creatures and elements inspired by H.R. Giger's iconic designs, this mod adds a layer of fear and excitement that stands out from typical gameplay. Deep underground, players can stumble upon black monolithic structures, ominous and foreboding in their design. These dungeons […]
Siscu's Survival Expansion Data Pack (1.21.1, 1.20.1) – Survivor's Elegy
Siscu's Survival Expansion Data Pack brings you an entirely new survival experience! Welcome to Survivor's Elegy, an extensive data pack designed to add cohesiveness and interesting features to your survival world! With renewed Biomes and some mechanics, this data pack is worth your time! Enjoy playing this data pack! Features: Game Mechanics Withering: Overworld creatures […]
KingCraft [FORGE]
Travel to a different planet? Fight new bosses? Discover new game mechanics? Welcome here.
What If...
Enhanced Vanilla experience with QoL improvements, new biomes, mobs and dungeons. Quests will help you get through this modpack and some of the new mechanics.
Ender Horizon Expand Mod (1.21.8, 1.20.1) – Tame Flying Mounts and Settle
Ender Horizon Expand Mod overhauls the End dimension with new biomes, mobs, ores, and mechanics. It turns the Ender Dragon battle into a much bigger event with fresh lore and a new title screen. You can explore hostile terrain, tame helpful companions, and craft unique tools to survive the dark void. Features: Reworks the Ender […]
Fowl Play Mod (1.21.1, 1.20.1) – Fill the Skies and Forests with Realistic Birds
Fowl Play Mod fills your Minecraft world with many types of realistic flying birds. This mod adds special flying mechanics and custom sounds to make the skies and forests feel alive. You can watch hawks glide high above you or see tiny sparrows fly quickly between trees. Some of these new animals just make the […]
Eternal Nether Mod (26.2, 1.21.1) – The Underworld Reimagined
Eternal Nether Mod transforms the Nether into a hostile, dimension filled with new structures, mobs, and mechanics. It’s a spiritual successor to Bygone Nether, expanding the fiery depths into a full-fledged adventure zone. Features: New Structures: Piglin Manor – A fortress in the Crimson Forest guarded by Piglin Hunters The Citadel – A towering stronghold […]
Good Ending Mod (1.21.1, 1.20.1) – Improve The Natural Look of Minecraft
Good Ending Mod is a mod whose main goal is to enhance everything related to nature, adding related content such as new natural biomes, new mechanics, new creatures, new animals, and more. In the following images, we can see some examples of the new content added by this mod. For example, we will be able […]