Forge Mods for Minecraft 1.21
Browse 89 free Forge mods for Minecraft 1.21 — popular picks include Improved Pillager Outpost, X Ray (no cheats), Withering Heights: Revamped Wither.
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Improved Pillager Outpost
The "Improved Pillager Outpost" Datapack revamps the standard Minecraft Pillager Outpost into a challenging, multi-level tower. This overhaul adds detailed architecture, tougher enemies, and exclusive loot, creating a more immersive and rewarding experie
X Ray (no cheats)
Find ores in mines faster and easier.
Withering Heights: Revamped Wither
Turning the Wither into something worth calling a boss.

Toolbar Sounds
A lightweight datapack that brings sound effects to your toolbar (hotbar).

Orbital Strike Cannon
This datapack/mod/plugin adds an Orbital Strike Cannon like wemmbu!
Tense Ambience
This mod enhances the atmosphere of all default dimensions with biome-specific, tense ambient sounds (Perfect for Horror Modpacks).
Zombie Nightmare Expansions - Undead Horror Monsters
Adds various creepy undead entities with unique mechanics and intricate designs
CRYPTID
Unique horror mod where your world comes alive. Adds 30 new cryptids and 40 new events. Now updated for slower gameplay
Zombie Horsemen
Zombie Horsemen is a Minecraft datapack that introduces a new surprise event similar to the Skeleton Trap. When triggered, a zombie riding a zombie horse, equipped with an iron helmet, iron axe, and shield, will spawn to challenge players.
oSzoukaua's: Realistic Spiders
This pack makes spiders more realistic! and much cuter!
Brutal Nightmare : Insane Difficult
Minecraft too easy? Try this mods with nearly 40 modifiers - settings new mini bosses, which made minecraft become hard & insane. Enhanced hostile mobs' AI & Angry passive mob. Zombie place/break blocks. Skeleton,Spider,Creeper,Enderman.
Too Much XP (TME)
Yeets the laggy XP orbs, whilst still maintaining a high level count

Wind Boost Enchantment
Allows one to Enchant the Harness with a Custom Enchant to make Happy Ghasts Faster
Sleepless
A gameplay-changing horror datapack for Minecraft 1.20.1-1.21 Inspired by TheLibrarianYT
Compatible Protection Enchantments
Makes all the protection enchantments (protection, blast protection, fire protection and projectile protection) compatible with each other.
Bucketable
Put any mob into a bucket! Completely customizable!
Compatible Sword Enchantments
Makes sharpness, smite and bane of arthropods compatible with each other.

Unoriginal
A simple datapack that removes all base origins added by the Origins mod
Injured Effects
This mod adds effects to being low on HP! This applies to players, aswell as humanoid entities like villagers, illagers, and piglins!
Piglin Conservatory v3.0
Adds a news structure to the Nether, The Piglin Conservatory, along with a new Obsidian Apple, Dragon Fruit, Toxic Mushrooms, Hoglins' Fossils, Corrupted Emerald and a New Music Discs!

Omnilook
freelook/perspectivemod but cooler
NoDim
A simple mod to disable end/nether portal collisions
Sanity: Renewed
Brings the sanity mechanic from Don't Starve into Minecraft
Corner Entity
is an atmospheric horror mod that turns your peaceful Minecraft survival into a nerve-wracking experience. You will never feel truly safe again, as something is watching you from the shadows, waiting for the perfect moment to strike.
The Dirty Stuff
This mod adds tobacco related items, like cigar/cigarettes
Mebahel's Skeleton Revival
When death is no longer the end… their skulls flee to rise again. Summon, hunt, or suffer — in Mebahel’s Skeleton Revival, every skeleton gets a second chance.
Remove Deepslate
Get rid of Deepslate from the world generation.
You Die You Lose a Heart (Discontinued)
Whenever you die you lose a heart, if you lose all of them you will be forced to go into spectator mode
JerkSteve
Adds the most annoying mob to Minecraft, as seen in the viral meme videos.
Create: Enhanced Diamond Production
Renewable Diamonds and Asurine!
Create: Enhanced Emerald Production
Automate Veridium and Emeralds!
Simple Throwable Bricks
Makes bricks throwable
Maximum Protection
Makes all the protection enchantments compatible with each other.
Create: Enhanced Netherite Productions
Automate Netherite! With this data-pack you can build the netherite farm of your dreams!
Create: Enhanced Totem Productions
Renewable totems of undying, so you can cheat death with confidence!
Orbital witherskull Cannon
Similar to Orbital strike cannon but spawn wither skull intead of tnt capable of breaking obsidian