Forge Mods for Minecraft 1.20
Browse 1,809 free Forge mods for Minecraft 1.20 — popular picks include LlpswLib, Finality Core, Simple Stations - Core.
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LlpswLib
LLPSW’s mod library, including the original animation modules and octree modules
Finality Core
Core mod for the Finality modpack series.
Simple Stations - Core
Core mod for all my simple stations mods
BotanyPotsTweaker
Adds CraftTweaker support for Botany Pots
Multiblocked2 Unofficial
Multiblocked2-unofficial is forked from the Minecraft 1.20.1 version of Multiblocked 2. It keeps all features from the original mod, merges mbd2thread, fixes several bugs, and adds methods and events that are more useful for modpack customization
Scala3Std
Universal Minecraft ModLoader Scala 3 Runtime Provider

IXApi
This mod added a good lib to minecraft
BeaconAuth
Secure web, OAuth, and passkey authentication for Minecraft servers using the BeaconAuth mod and a self-hosted auth server.
KubePackages
Package manager for KubeJS
MemorySweeper
Aggressive chunk unloading to prevent memory creep during exploration
smartbuildLib
Library for Improved construction system (Now supports Create Aero)
CC: Shenanigans
Silly shenanigans for ComputerCraft: Tweaked
Lab Blocks
This adds lab style blocks to the game
Caliber Lib
Caliber Lib is a library mod containing various aspects of all of my mods. It is available for other developers to use for integration with CaliberMC mods or for use on their own projects as well!
Treehouse: In a Concrete Jungle Companion
A companion mod for a Treehouse: In a Concrete Jungle modpack
Microsoft SQL JDBC (Fabric/Forge)
Microsoft SQL JDBC Driver for Minecraft
Health = Size Challange
Makes The Game Way More Challenging
Sal_fish's Attribute Lib
Sal_fish's Attribute Lib (双拼原味咸鱼罐头) – a Forge 1.20.1 library adding configurable attributes and cross-session command memory.
EngieLib
A library mod for the mods of EngieGames.

Incandescent Lib
A light-weight library providing API for entity & player animations with included utility
Creepypasta Pack!
Adds the five most terrifying entities
Hunger Attribute
Adds a customizable hunger rate attribute to fine-tune food exhaustion mechanics.
TerraFirmaMisc
TerraFirmaMisc is an Addon to TerraFirmaCraft to add Items for use by Modpack Developers & Modders.
Class Gem: Core
This is a core for a series of mods with RPG mechanics, on its own it does nothing.
The Hollowed (Needs Geckolib)
This mod adds the rejected idea for the warden.
Scribble Book
A study journal that lets players document blocks by examining them in the world, gradually unlocking basic and in-depth knowledge entries at the cost of ink and paper.

Soul RPG Stats
A simple rpg style leveling system and stats mod for minecraft Still in its early days sorry for the bad explanation
Blackboard
Place a blackboard. It shows a problem. Answer in chat to win rewards.
Sympathetic Attributes
RPG Attributes library mod that adds custom attributes that enhance gameplay. Designed mainly for rpg, advanture modpacks. It is the core mode/depency for upcoming mods.
LevelCap System
LevelCap System
ProjectE More Event API
An API mod for ProjectE add-on developers.
Mixpnlb
A library organizer for Mixins that organizes and enhances the performance of mixins and textures.
SimpleCraftableNametags
This mod adds crafting recipe for nametags from the 26.1 version
MiguelEconomy MAX
A full economy mod : market, player balances, a dynamic-pricing shop, buy orders, money items, and a web dashboard.
Mustang API
API for minecraft mods, kind of like Architectuary API and Cloth Config API
ColorableLib
SuperbWarfare library for easy vehicle coloring.