Minecraft Java 1.21 Mods
Browse 3,671 free mods for Minecraft Java 1.21 — popular picks include VillagerInfect, MobCatcherPro, Void Pressure.
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VillagerInfect
Simple Paper plugin that allows players to infect villagers using a special item.
MobCatcherPro
The Ultimate Entity Transport Solution for Minecraft 1.21+
Void Pressure
A flexible NeoForge framework for modpacks, providing a global pressure system to trigger fully configurable events.
YungTwitchTTS
Interactive TTS chickens that read Twitch chat aloud, fight mobs, level up, and drop epic loot. Fabric 1.21
Blood Anarchy: Call Of The Chaos
A PvE mod (not horror one) that adds Blood Anarchy - a hostile civilization controlled by a malicious force that emerged on one of abandoned servers...
InstantSimCleanup
InstantSimCleanup is a forced server optimization plugin that reduces lag by aggressively clearing inactive zones. Instead of relying on a standard timer, it uses a chunk distance control mechanic to remove everything in areas where there are no players.
Night Speed
Night Speed is a simple datapack that grants a speed buff to vanilla hostile mobs at night, making nights more dangerous and intense. Currently in playtesting.
Restless Nights
Sleeping is no longer safe.
PecoraGenesis
PecoraGenesis enhances livestock with genetics, allowing special meat, milk variation, and persistent gene-based traits.
AgeableMobs
Control animal growth and convert adults to babies.
Viiru Advancements Pack
Minecraft Advancements Pack that gives you motivation to keep going.
Night Curse
Locks you to the night time and makes you craft items to recover daylight and the use of beds.

Passive Turtle Scute
Turtles passively drop Turtle Scute every 7.5 minutes (on average) instead of needing to be bred.

Instant Pet Names
Instantly name your pets as soon as you tame them, no Name Tag required.
Bagel's Reusable Sculk Shriekers
Sculk Shriekers mined with Silk Touch can summon Wardens.
Ravenborne
Class based medieval fantasy rpg mod based by Ravenborne theme!
Random Ghast Speed
Happy Ghasts now have random speeds, just like horses! Some are slow and steady, others are fast and quick – each one is unique. Enjoy a different flying experience every time!
BulsciCraft
Enjoy this brand new mod that adds New Dimensions, Mobs, Items, Blocks, Unusual things and even a bossfight...
creakingevents
CreakingPerks is a Folia-compatible plugin with 9 modular enhancements: harder mobs, Illusioner spawns, Ghast bomber, lava mechanics, and a craftable Dry Weapon. Toggle modules via /creakinghelp.
Mutagenic Menagerie
A datapack that adds a wide variety of Cow, Pig, and Chicken variants.
Hardest Vanilla
Makes minecraft much more difficult without taking the immersion of vanilla away.
Allow wolves to attack teammates
A mod that allows dogs to attack other players and mobs, even if they are part of the same team. Experimental - may break other mob's team behavior.
Warden TP Blocker
A simple plugin that disables any tp commands when a Warden is nearby
World Evils
This project adds the world evils from terraria!
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.
AlwaysBestHorse (ABH)
Always Best Horses is a lightweight, server-side Fabric mod. Whenever a player successfully tames a horse, its statistics are automatically maximized to the highest possible vanilla limits.
Charged Creepers
Adds dynamic natural spawning for Charged Creepers. The spawn rate increases on Hard and reaches 8% in Hardcore for an extreme challenge!
ProgressionWaveArena
A solo wave-survival arena plugin for Paper servers — fight through endless, scaling mob waves across randomly selected schematic arenas, earn loot and coins, and compete on a persistent leaderboard.
Speedy Ghasts
This datapack increases the happy ghast base speed, going even faster when you fly above the clouds, you can even use speed potions to really chase the skies!
NocturneSlayer
NocturneSlayer is a Minecraft plugin that adds immersive combat mechanics, progression systems, and dark fantasy gameplay elements.
Faster Impossible Craft
Makes the game faster like making time go faster, mobs, and more. Fun with friends.
FancyChairs
A simple Spigot plugin that adds the ability to sit on and add carpet to stairs and slabs
Wither Survival
Every mob turns into Withers. Try to beat the game
AdvancedSettings
The only Settings plugin you will ever need!
NoMoreLeaders
Entirely removes the Zombie leader HP buff without having to lower your difficulty
FakePlayersPack
Adds fake players to your world (requires Carpet Mod)!