Forge Mods for Minecraft 1.21
Browse 5,334 free Forge mods for Minecraft 1.21 — popular picks include Gunstrike, AIO - Villager! Fill my XP, Every Resource Pack.
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Gunstrike
Gunstrike spawns a nightly raid with gun-wielding raiders. Prepare for intense combat with firearms, startegic AI and dynamic raids that scale with difficulty.

AIO - Villager! Fill my XP
Let a villager help you with storing your XP. Give him a glass bottle and he will give you an experience bottle back. Smelt the bottles in a furnace to retreive your XP

Every Resource Pack
A giant pack of resource packs you can swap between inside Minecraft—visual customization made effortless.

Stacking Potion
This datapack allows you to carry any potion type in your inventory with a maximum stack size of 16.
Continuity Error SMP Modpack
Theme changes each season, and it will be vastly different each time.
Castle and Farm
Farm and bossfight

PVP REFORGED
Designed for serious competitive play, PVP REFORGED overhauls Minecraft's combat and visuals, delivering improved FPS, critical utility features, and a fresh yet focused environment for skillful PVP duels.
Turmoil (ULTIMATE HORROR EXPERIENCE)
A big horror modpack
Blueprints & Blocks
Blueprints & Blocks is a creative modpack for does that want easier and creativer buildings
Jets & More
Make your own working jets, cars, trains & more in Minecraft!
Avaritia infinity adventure
This modpack is for you to complete Avaritia with various mods to help.
Gears & Glyphs
Survival Modpack focused on automation trough magic or machines, or a combination for both, with a focus on economy with the numismatics and bounty mods

Megalo's Metallurgy
Adds 50 new metal ores to the game.

KH Thirst Bar
Adds a Thirst Bar/Temperature gauge to the actionbar. You control the difficulty. Walking, Running, Jumping, Swimming, Attacking, Shade, Weather, Elevation all effect the player.

Somnia: Community Edition
Simulating the world while you sleep
super_scary.jar with guns and more
its the best horror mod ever and guns also falling tree world map and dynamic lighting.
Plethoric Utilities
A lightweight utility modpack that enhances vanilla gameplay with backpacks, a minimap, and quality-of-life features without breaking the core experience.

Blue Seoul Vehicles
Blue Seoul Vehicles is a variety of civilian vehicle pack in South Korea

Ultimate Manhunt
A Minecraft 1.20.1/1.21.1 Forge mod for creating, running, and managing manhunt games

Simplify
Simplifies long commands!

Pick Up Filter (PUF)
Pick Up Filter (PUF) lets you control which items you pick up in Minecraft.
HorrorCraft (HALLOWEEN)
Get ready to experience the jumpscares of popular mods such as Cave Dweller, Man from the Fog, The Boiled One, etc with this modpack!
Colony FarmLands
A modpack about Colonies and Farmlands. has some magic mods and no create, has no tech mods.

Simply Traps
Lightweight, vanilla-style mod with 7 unique traps
Create MineColony (eGirls Stream)
Small Modpack centered around Create & Minecolonies.

Enderite
Adds a netherite type resource to the end, which makes you even stronger

Stunning Bows
Make some Stunning bows in Minecraft!

No Rocket Usage
Bans firework usage when using an elytra, because rocket flying is annoying! (and unfair, too.)
[PPE] Project Performance Enhance
A modpack that has everything you need to increase FPS. Best for those low end pc that struggles to run minecraft.

GlassDelight
GlassDelight adds full decorative block variants (like fences, slabs, and buttons) for all concrete and stained glass types in Minecraft.

Feline +- (Origin)
(NEEDS ORIGINS + PEHKUI) the feline origin but more complicated

More Of All
A mod that attempts to add literally more of all! From trees to enchants there is literally more of all
scc cobbelmon
a cobblemon and create modpack.
Dr's House
A nice modpack to Decorate and build your dreamt house!

I'm Herobrine
With this mod you can become a Herobrine and spawn lightning bolt

Create: Enhanced Emerald Production
Automate Veridium and Emeralds!