Neoforge Mods for Minecraft 1.21
Browse 33 free Neoforge mods for Minecraft 1.21 — popular picks include Loginar Storage, Arachnids, Alien Cat.
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Loginar Storage
Storage and inventory improvements... and alien squid dudes
Arachnids
Arachnids is a mod based on the first Starship Troopers movie and 2005 game about an alien race of bugs.
Alien Cat
Trade Other-Wordly items with your new friend! the alien cat!
UFO FUTURE
UFO FUTURE: an endgame Minecraft mod. Adds Infinity Cells (infinite resources), Crafting Storages up to 1 quadrillion bytes, and intergalactic Co-processors for massive crafting. Includes energy-powered tools and armor.
Gecko King's Aliens vs Predator Mod
This is a mod about the Aliens and Predator franchises; adding xenomorphs, anathema (pathogens), and yautjas to your worlds.
Alien AGF Series
A modpack that brings technology from Mekanism, space travel from Ad Astra, and Xenomorphs from Gigeresque to create a grand suspense filled adventure! Help AGF (Anomaly Glitch Foundation) find the xenomorphs to either contain them or irradicate them.
galactic create
A massive Create addon introducing oxygen mechanics, custom planets, inter-dimensional spacecraft, alien mobs, and procedural space structures.
AVP: Alien
A module for the AVP universe that adds alien content.
Phenominae: Cryptid Creatures & Strange Encounters
Add cryptid creatures in your world like aliens, monolith and more!
Tomtaru's Stellaris & Immersive Engineering Tweaks
A small bridge between Stellaris and Immersive Engineering. Allows processing of alien resources and oil in IE multiblocks
Dirt Deco
Don't alienate your hobbitzes, aka dirt homes can look nice too!
Phineas and Ferb
Phineas and Ferb mod, will add characters from the animated series Phineas and Ferb to the game.In your world, there will be:Phineas, Ferb, Isabella, Baljit, Buford, Candace,Stacy,Vanessa,Norm,Dr. heinz doofenshmirtz. Of the functions, the mod will add aci
Bread 10: The Alien Device
Back In Business... It's Hero Time!
The Dababy Modification 2
Explore an alien dream like world, encounter unique mobs, use new mechanics, and see Dababy's face on every texture
Aliens Vs Predator: Resurrection - Aliens
A continued project, cloned with permission, of the new alien vs predator mod.This module adds alien content.
Alien's Extra Blocks
(old project, very bad) Adds blocks that should exist but don't.
AVP Tech
Tech modpack with lots of technology to help against the aliens (bugs)
Feufollet's alarm
A mod that adds an loud emergency alarm when powerd by redstone.
Aliens Vs Predator: Resurrection - Humans
A continued project, cloned with permission, of the new alien vs predator mod. This module is the human part of the AVP module Suite.

Little Visitor
A mod that adds little alien dudes to your Minecraft world
Aliens Vs Predator: Resurrection - Predators
A continued project, cloned with permission, of the new alien vs predator mod.
AVP: Apocalypse
Addon for the AVP: Alien that allows makes gameplay... different
aliens vs predator- kingly pythons gucci realm
modpack for kinglys esrver
Xenogenesis
A biomechanical horror mod inspired by Alien and Prometheus. Discover sealed underground structures, parasitic life cycles, facehuggers, and xenomorph-like organisms waiting to be unleashed.
Dababy Mod 2
Explore an alien dream like world, encounter unique mobs, use new mechanics, and see Dababy's face on every texture
The Call From Rapa Cosmo
An encounter with Aliens from across the cosmos.
The Gifted
Unlock abilities by surviving danger, injecting powerful serums, or experimenting with alien tech and mutation.
JUMBLE'S BUNGALOW
This creative-based mod adds bright neon cosmetic blocks, bioluminescent plants, and weird alien music discs to the game. You can also open a portal to an empty, dark cave dimension and build a new world from the ground up!
Ufouria
A Create-Focused Vanilla+ Modpack focused on Co-op play.
Alienated
Adds a whole new planet to explore!
alienation craftation
someone asked me to add this to modrinth so heres the modrinth port/edition of my chaotic and very confusing aliens mod!
Gregicality Rocketry Mod (1.21.1, 1.20.1) – Reach For The Stars
Gregicality Rocketry Mod is a comprehensive addon for GregTech: New Horizons that integrates advanced rocketry and space exploration mechanics. It introduces a suite of high-tech components and systems, allowing players to build and launch custom rockets, explore new celestial bodies, and harness extraterrestrial resources. Features: Design and construct customizable rockets with modular components. Explore new […]
Hoard
RL Craft had a baby with Greg Tech with an end game goal longer than the Stargate to hoard more gold than an ancient-alien-dwarven-dragon-tech-baron, set in a Shannara Chronicles like post-apocalypse fantasy world!