Neoforge Mods for Minecraft 1.21
Browse 4,500 free Neoforge mods for Minecraft 1.21 — popular picks include Pixelmon: Legends Levelled, Hunger of the Constant, Music Zones.
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Pixelmon: Legends Levelled
Legends Levelled [Pixelmon Sidemod] makes every wild Legendary and Ultra Beast the same level as the strongest Pokémon in the nearest player's party, no matter how it spawns.
Hunger of the Constant
The food from the Don't Starve series, in Minecraft! Prepare food in a Crock Pot and come across new resources in the wild.
Music Zones
Add zones that play Sound Events, useful for adventure maps, or making your builds nicer!
Fell
A lightweight, highly configurable, Tree Felling mod.
Balanced Diet: Seamless Food
Incentivizes players to use multiple food sources by requiring a varied diet to achieve max health and gain unique buffs from food combinations, enabling specialized builds with strengths and weaknesses.

Size changing potions
A pretty simple but effective mod that adds size changing potions, which does NOT use pekhui! Try not to make yourself too big or... *windows error noise*
Peaceful Silverfish
Peaceful Silverfish lets silverfish spawn from vanilla infested stone even on Peaceful. Great for Create farms and contraptions, but works perfect in vanilla too. Includes an option to mute silverfish sounds so your base stays quiet.
Auto Smelt Pickaxe
This is a mod that gives you an auto-smelting pickaxe. Every time you mine, the ore is automatically smelted and placed into your inventory.
Hungry Tools
Allows tools eat items/blocks
TFC x TFMG: Oil Well Compatibility
Adds oil wells from tfmg to tfc generation
Better Blazecake Recipe
this project adds a new recipe for blaze cakes from the create mod.
Ethium's Delight
Adds an Ethium Knife for Farmer's Delight
Caloric Flux
A technical energy generation mod for NeoForge 1.21.1 based on thermodynamics and thermal differences.
VANILLA-ELARGE [Utilitarian perspectives]
A Minecraft Vanilla DLC experience
Villager Panic
Villagers now react more realistically to violent players
Rotwire
A Zombie Survival take on Minecraft with infested cities. Establish a radio connection with the survivors to maintain your ammunition and resource supply. Migrate from town to town as their difficulty scales with your activity within each of them.

CobbleCatalyst
Adds Cobblemon trainer battle phases to Cataclysm boss fights, turning boss fights into hybrid combat and Pokemon battle challenges.
Minecraft's Scariest Mod
This mod adds harmless jump scares to everyone in your game just to troll
Builder's Thurible
Craft a Builder's Thurible to paint random block patterns into existing surfaces!

OreCrafter
Have you ever wanted to craft ores without a silk touch pickaxe? Well, now you can!
Pixelmon: No More Ultra Space
No More Ultra Space [Pixelmon Sidemod] removes Ultra Space and wormholes for good, relocating every Ultra Beast into matching overworld biomes with beast chests, horde battles, and ultra terrain blocks all aquirable from the overworld.

EZ Timer
Very easy to use timer. Start, pause and reset is all you really need. | Using FuseBox API
Create: Fireproof Blaze Cake
Blaze Cake and its creative variant are made from lava — so why do they burn in it? This small addon makes both items fire-resistant, so they won't be destroyed when dropped in lava.
Dungeon Loot Configurator
Adds datapack-driven loot-table integrations that allows loot -tables to add things into other loot-tables
The Ultimate Mace
Its mod add a new enchant for Mace
CopyComponent
Allows you to copy a component/nbt data of an item
Simple Avatars
This mod adds some avatars (in book form)
Titanroot Skies
A Minecraft society modpack with a focus on mechanical engineering, exploration, and rpg elements.
箭艺复兴 Arrow Renaissance
箭艺复兴模组为Minecraft的制箭台添加了功能,你可以用制箭台更经济地合成箭矢 Arrow Renaissance enhances Minecraft's Fletching Table, enabling you to craft arrows more cost-effectively."

Ruby Heart Progression
Start with three hearts and experience a new heart progression inspired by Terraria! Adds items that add onto your max hearts and also absorb damage

Viatora
Vanilla++. Adds bits and bobs to the vanilla features to make them a bit more fun
Additionality
A Mod which adds all sorts of QoL enhancements
SelectiveMilk
Tired of losing your hard-earned positive buffs from a single bucket of milk? This mod makes milk only clear negative effects, keeping your buffs safe!
Tyrant
a mod introducing an identity system inspired by similar mods like Origins
Fractured Reality
A story focused mod, in which unknown beings will enter your world and break apart reality itself.
Artisanal Blocks
A mod that allows the customization of a block "per blockface". Additional features include light level configuration, toggleable passibility, and redstone control!