Neoforge Mods for Minecraft 1.21
Browse 54 free Neoforge mods for Minecraft 1.21 — popular picks include Aetheria: Age of Oblivion, Canalize, Marvel Metals.
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Aetheria: Age of Oblivion
This is a Dark Fantasy RPG-style compilation with an emphasis on complex combat, exploration of dangerous dungeons, and magic.
Canalize
Canalize breaks the terrain generation framework of the original Minecraft, offloads the core heightmap calculations down to the C++ layer, and bridges them back to the Java game
Marvel Metals
Marvel Metals adds powerful, hero-inspired metals and alloys into Minecraft. Discover rare ores deep underground, craft advanced tools and armor based on legendary comic style materials

Slime Tweaker
Small mod that adds a gamerule and config to change the size of spawned slimes.
how low can you go
Rewards you for going deeper in the world with increase spawn rate of ore except diamonds
TheFourLeafCollective
A modpack made to specialize in four main archetypes, tech, magic, exploration, and building!
ikbLib
An API for density functions that use the world seed, voronoi/cellular noise, and new fluid behaviors

Planet - Border teleport
Border-teleport mod: teleports entities crossing world borders (±326) to opposite side. Perfect for 1:326 Earth maps. Open-source (remix allowed, but must keep code open).
twinkle popo mod
it adds twinkle popo realistic pikachu and realistic hellokity
Large Structure Lib
Library for large structures, including enormous jigsaw structures.
Fools Rise Tweaks
Small mod for Fools Rise modpack! Added progression for modpack and some more!
Craftable Uncraftables And More!
This mod adds all the uncraftable thing to minecraft and a few extra things.

Really Cooking
Cooking in Minecraft has always been simple, but not anymore!
Enemy Tracker
Time to Detect the Threat and Enemies!
RFTools Base Mod (1.21.1, 1.20.1) – Library for McJty's Mods
RFTools Base Mod is the base mod for all tech mods by McJty. This includes RFTools Dimensions, RFTools Control, RFTools Power, Deep Resonance, XNet, and so on. Features: Dimensional Shard oregen, small amount in the overworld, more in other dimensions. The machine infuser. Base crafting materials for the other tech mods. The smart wrench. Security […]
McJtyLib (1.21.1, 1.20.1) – The Foundation for High-Tech Worlds
McJtyLib is a companion mod required by all mods from McJty: RFTools, RFTools Dimensions, Deep Resonance and also by RF Lux by romelo333. Features: Acts as a required library for a large collection of mods. Allows various tech mods to function properly without crashing. Provides the necessary code for mods including RFTools, XNet, Deep Resonance, […]
RevelationaryDimensions
A simple addon to Revelationary which adds support for locking dimensions.
PaleoLib
A simple mod to provide the basis for Paleontology in Minecraft.