Minecraft Java 1.21 Mods
Browse 12,329 free mods for Minecraft Java 1.21 — popular picks include Yuu Rain Dash, MaxEntitiesInChunk, Bash Mod.
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Yuu Rain Dash
Rain-triggered mobility dash with double-sneak trigger.
MaxEntitiesInChunk
Manage or Restrict the number of entities in each chunk. specially adapt to Mohist Server.| 限制每个区块的实体上限,并适配Mohist。
Bash Mod
This mod adds a new creature called Bash to the game, along with its variant named Lil Bash.
Stick Out Your Tongue!
All mobs stick their tongues out.
TML_Avaritia_addon
An addon that lets Touhou Little Maid maids use Re:Avaritia weapons and armor.
Richerd
This mod adds a bodyguard to protect against horror mods
Genshin Impact Lunar Expansion Neoforge (Unofficial)
a genshin impact neoforge port that brings the magic, weaponry, and currencies of Teyvat into Minecraft
happy variations
A minecraft datapack which randomises the size and speed of happy ghasts
Soul Works Mod
This is a mob spawn utility mod.
VillagerGuardian
A lightweight admin utility plugin for controlling villager invulnerability and trades.
Only Jetpacks
This mod adds jetpacks that the player can use to fly around, as well as a new way to play the game where you can make it where every single mob in Minecraft has their own jetpack, creating a world of chaos.
mc is too ez
A survival difficulty mod that makes Minecraft harder, more punishing, and less forgiving.
DynamicMobLimiter
Dynamically throttles natural mob spawning based on server TPS — keeps your server smooth under load, with zero impact when TPS is healthy.
Mood Contagion
Mobs gain a hidden emotional state (calm, panic, or rage) that spreads through same-type herds and decays. Hit one sheep and the flock stampedes; enrage a wolf and its pack turns. Server-side, Paper/Spigot/Bukkit/Purpur 1.21+.
SIXsBoom
PvE creeper survival arena minigame with custom wave system
NoMob-Axolotl
NoMob-Axolotl— Completely removes axolotls from your server by preventing spawns and purging existing ones.
Tramwajarze
This project adds very cute bugs called "tramwajarz". The name comes from the Polish langugage.

Scute Force
Craft mount armor with scutes!
The Invisible Cheater
There's a new boss in the world
DivineCows
This is a paper/spigot plugin that punishes a player if he/she kills a cow.
Copper Competency
Copper is required to mine iron, which is a rarer spawn near the surface. Become competent with copper!
Stinky Aura
You are so stinky that the mobs around you are getting boosted away!
Smart Zombies
Fabric‑based 1.21.1 mod making zombies intelligent: wall‑breaking, gap‑parkour, horde spawning, skeleton turrets, creeper‑throwing, emergency escape, backup calls, item‑picking, base sabotage and variable stats & sizes.
Survival+
Survival+ is a datapack that adds difficulty and suprise to Minecraft again. By adding tougher enemies and cool unique items. Along with a bunch of new mechanics and reworks of some old ones, causing you to relearn Minecraft in a whole new way!
Buddy Beast
Find and tame your own loyal companion creature that remembers you across sessions. Toggle between following you everywhere or guarding a spot, with pathfinding, swimming, and a visible health bar — its bond persists through reloads and server restarts.
explosives mobs
This data pack makes Minecraft mobs explode.
WildDifficulty
Vanilla was never enough. Redefine survival, one mob at a time.
Stargate Replicators Mod
A Lore Acurate mod that adds the Replicators from the scfi TV show Stargate SG1 for Minecraft Java edition 1.21.1
speartop
A competitive spear kill leaderboard plugin for Paper servers. Top 3 players earn exclusive rank spears with powerful enchantments — lose your rank and lose your spear.
MashStrikeDrops
The plugin is aimed at event servers, crates-style mob encounters, grind zones, boss-lite content, and custom reward systems without needing MythicMobs or a larger RPG stack.
Push Mobs
This Mods Add The Function to Push Mobs when you Right-Click On Them!
Patisco Update
This mod adds a new armor, ores, food and a mob.
Jub
Jub The Description says all Basically the mod is stuff revolving around the word Jub exept 2 mobs.
Yuu Mob Chain
Hostile mob combo chains with XP and milestone rewards.
AnimalPickup
Allow Players to Pickup Passive Mobs or Aggressive Ones via Config with Custom Perms.
TamedDeaths
Broadcast tamed pets' death messages to the chat