Neoforge Mods for Minecraft 1.21
Browse 4,161 free Neoforge mods for Minecraft 1.21 — popular picks include MysticalCraft Reimagined, Unga Bunga, Parent.
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MysticalCraft Reimagined
Adds a wide variety of new blocks, unique mobs, and diverse structures to enhance exploration and creativity.
Unga Bunga
A new oonga ore, that can be smelted into oonga ingots. A new oonga pickaxe, that can be crafted from oonga ingots. A new underground biome and a new mob.
Parent
A mod where you go through layers of dimensions to fight your father
Pointless Emeralds Stuff
Pointless Emerald Stuff that nobody asked for
Nerd's Chestnut Grove
The mod that adds my favorite tree, the chestnut!
Artmoby's Hauling Crates
A Minecraft mod for the ReUnitedSMP aiming to add crates. An out the ordinary way to implement economy, inspired by Scrap Mechanic.

Sammy Face Mod
This mod adds a new dimension called Sammy Face Dimension with its own biome, to enter the Sammy Face Dimension you will need to make a 4x5 portal with Sammy Face Portal Block then light it with Sammy Face Portal Ignighter.
Crescent Forge & Flight
A Create-powered industrial adventure featuring automation, railways, airships, and exploration.
Spookity's Oresome Ores
This mod adds several ORESOME ores and items to make the minecraft experience better! It also adds more endgame elements to add overall more things to do.
Create Fillers
Made to work specifically with the 'Create' modpack made for fun - Adds "Hyperdense Ores" for Vanilla + Mar Mar's EOV.
Celestial Depths
This mod adds a bunch of new features such as, A new Dimension called The Astral Realm, New tools and ore, a new biome called the Celestial Wastelands, and a new mini boss called the Celestial Golem.
Speedy's More Biomes
A mod that adds unique biomes and blocks to your game to make exploring more fun!
Retro Foliage
Adds the Rose, Paeonia, and Buttercup to the game.
Wayfinder's Bottle
A vanilla-friendly exploration mod adding a magical bottle that reveals maps to distant biomes. Trade with Cartographers, loot chests, or fish for it!

Ropun
Neues Erz mit einem neuem Biom
mini tramvays
This mod adds several structures and miniature trams of different types
Loremaster
The Loremaster in his Library will give guide books you can borrow.
No Strongholds / No End
Prevent access to the end by preventing strongholds from being generated.
No savanna player spawn
Prevents player spawning in savannas
Tomodachi Hybrids
A simple mod that adds hybrids from my Tomodachi Life: LTD save file.
Advancements Go Beyond
Advancements Go Beyond aims to add a lot of new Advancements to each vanilla tab of the game and new tweaks to the over-all vanilla game!
Abundant Ores 3x
Increase the generation of every vanilla ore 3x.
Super Little Create Modpack (SLCM)
Dive into an immersive Minecraft adventure focused on engineering, exploration, and creativity.
A Cheezy World
This mod adds a new cheeze biome as well as a new dimension.
Uncommon Ores
New ores with special mechanics
Placeable Plants: Whitelisted
Allows players and worldgen to place plants on bloocks through a config using a blacklist or a whitelist.
Overpowered one hit soap
A mod that adds a soap that is supposed to one-hit anything, as well as a few other things! :D
msp
Realistic orbital physics, rocket engineering, and space program progression for Minecraft. Build Create contraptions, launch them with real gravity/drag/re-entry, do science, unlock tech via FTB Quests.
Minestuck: Cascade
A Minestuck addon that adds new dimensions, the ability to time travel and the ability to play as trolls.
Biomes plus
Biomes Plus — 7 new biomes: foggy grove, lost forest, misty highlands, driftwood swamp, windswept plains with menhirs, olive grove, salt basin.
NNP Rune Smithing
Claim (or cast) runes! Place them in-world or forge them into armor for unique effects. Heavily configurable; balance to taste.
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!!!
Chaos ore
A fun mod that adds a ore that drops random stuff!
Winter Wonder
This mod adds a new biome called "Winter Wonderland"
The Char
Aims to basically re-create the Nether Update with new blocks and items.
Expedition X
Expedition X is a minecraft mod for neoforge 1.21.8 that overhauls the vanilla progression system with new resources, challenges, and adventures!