Forge Mods for Minecraft 1.21
Browse 5,335 free Forge mods for Minecraft 1.21 — popular picks include Hotai, PKGBadges / CobbleBadges (Fabric & Forge), Van Backport Compat.
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Hotai
Patch mods with external files for modern version
PKGBadges / CobbleBadges (Fabric & Forge)
Cobblemon Pokemon GYM Badges
Van Backport Compat
Adds Vanilla Backport features to moded biomes!
Workshop for handsome adventurer
Simple blocks for your workshop - tool racks, crafting tables, shelves...
Spooky Pumpkin
This mod adds new Spooky Mobs to your Minecraft World

Dungeons and Taverns Swamp Hut Overhaul
This Splinter Standalone version of Dungeons and Tavern adds the Swamp Hut rework. Adding 2 variants, an loot chest, an brewing stand and an bed
Performance Tweaks
Several optimizations and bugfixes. Entity Collision FPS fix, Let-Me-Despawn, railway optimization and alternate current.
Unusual Furniture
✨Vanilla styled furniture mod!

Cobblemarks+ (Cobblemon)
Adds additional marks to Cobblemon, and improves some already existing ones!
L2 Backpack
Easy to use Backpack and shared ender chest
Additional Placements
Additional placement states for many blocks, including vertical slabs and stairs
Biolith
A biome placement mod focusing on configurability and consistent distribution of modded biomes
Fargo's Talismans
Fargo's Talismans adds a variety of talismans to Minecraft inspired by the Terraria mod Fargo's Soul Mod, each with unique abilities
Me-Beam-Former
Add an ME Beam Former to AE2 to enable visually and wireless visually stunning ME network connections.
The Occult
A mod introducing demons, rituals and dark magic.
Roomopolis
Allows the creation of rooms using keys and key blocks
Can't Sleep Clowns Will Eat Me
A forge mod that causes nearby mobs to be temporarily highlighted when they prevent players from attempting to sleep
Vintage Animations
Overhaul Animations of Basic Actions
Copper Drops
Decreases Copper Ore's drops to balance gameplay.
Epic Structures: Villages
A Mod which replaces vanilla villages with epic sprawling towns :)
DragonLib
A library mod for all my other mods.
Abandoned Watchtowers
Adds abandoned Watchtowers to forest biomes. Perfect for a horror or adventure setting
Discord Integration Forge
Click for other loaders. This mod links your server chat with a channel on your discord server.
Wool Tweaks
🐑 Makes various changes to wool-type block recipes, string conversion and the dyeing process.
Elite X Quality Guns (TACZ)
Sucessor of Elite X Warfare now on Tac Z
Majo's Broom
a Flying Broom mod
Mob AI Tweaks
Tweaks certain mob AIs, major or minor. Reworks the Wither and Ender Dragon boss fights!
Trade Uses
Shows how many times you can use a trade before restock.
Chested Companions
Equip chests on your fluffy friends!
Expanded Combat
An expansion to how you battle

Wabi-Sabi Structures
A collection of unique, quality structures based on the Wabi-Sabi philosophy
FilesJS
Allow you to use kubejs for some restrictive operations on files
Create: Deep Dark
A Create mod addon featuring new end-game items based on the Deep Dark biome, making venturing into Warden territory more fun and rewarding.
ClearSky
Unofficially ports ClearSkies, making horizon and fog colors match the sky
Chat Notify
Plays a ping sound when your name is mentioned, with options to create custom alerts.
Create: Mechanical Botany
Gather plants from automation