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Forge Mods for Minecraft 1.21

Browse 94 free Forge mods for Minecraft 1.21 — popular picks include More Axolotl Variants API, ArmoreableMobs, Bagus Lib.

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More Axolotl Variants API
1.21.11fabric

More Axolotl Variants API

Axolotl Variants Extender API!

18Mdownloads
ArmoreableMobs
1.21.1fabric

ArmoreableMobs

Allows you give armor and items to an entity when it spawns using Craftweaker with gamestages support!

15Mdownloads
Bagus Lib
1.21.1neoforge

Bagus Lib

This mod is using baguchi's mod and you can use too!

14Mdownloads
Summoning Rituals
1.21.1neoforge

Summoning Rituals

Create custom summoning rituals for items, mobs and commands.

9.8Mdownloads
PAUCAL
1.20.1forge

PAUCAL

Petrak@'s Assorted, Useful Collection of Assistance Library.

9.4Mdownloads
Underlay
1.21.1neoforge

Underlay

Place any block (such as carpets) inside anything!

8.8Mdownloads
Kleiders Custom Renderer API
1.20.1forge

Kleiders Custom Renderer API

Change the player/mobs models and textures with this API for MCreator mods!

8.3Mdownloads
Untitled Duck Mod (Forge)
1.21.1neoforge

Untitled Duck Mod (Forge)

Ducks for Forge and Fabric! Powered by geckolib and architectury.

7.6Mdownloads
LegendRelicLib
1.20.1forge

LegendRelicLib

This pre-library provides a collection of methods designed to eliminate repetitive steps.has more function

2.1Mdownloads
Gravel's Extended Battles
1.21.1fabric

Gravel's Extended Battles

This library mod adds new moves, abilities and types to the Cobblemon mod for use in addons.

662kdownloads
Woot Revived
1.21.11neoforge

Woot Revived

A multiblock mod to harvest mob drops.

601kdownloads
TslatEffectsLib
1.20.1forge

TslatEffectsLib

A small developer library to expand the functionality of MobEffects

576kdownloads
Terra Entity
1.21.1neoforge

Terra Entity

A mod encompasses numerous Terraria monsters and bosses, and constitutes one of the submodules integrated within the larger mod, Confluence.

475kdownloads
Villainous Horde Manager
1.21.1fabric

Villainous Horde Manager

A utility to aid in creating mob swarming events.

240kdownloads
Player2 AI NPC
1.21.1neoforge

Player2 AI NPC

This is not just another companion mod; it is a live showcase of the PlayerEngine framework, built to fundamentally change our perception of AI NPCs in Minecraft.

216kdownloads
FokusAPI
1.17.1fabric

FokusAPI

Focus / Fokus API - Library for CoffeeG's Mod. Support NBT Editing, Mob Spawning and more!

168kdownloads
Travelers Lib
1.20.1forge

Travelers Lib

My library for adding animals and other helpful features

101kdownloads
Carpets Core
1.21.11fabric

Carpets Core

Simple lib for creating multifaced carpets

100kdownloads
Encounter: Mob AI Tweaker
1.20.1forge

Encounter: Mob AI Tweaker

Allow modpack developers to add targeting/avoiding rules for entity AI.

75kdownloads
Hardcore Mode 2.0
1.21neoforge

Hardcore Mode 2.0

The most difficult mod in all of Minecraft. Do you dare to play it?

54kdownloads
Piglin Conservatory v3.0
1.21.11fabric

Piglin Conservatory v3.0

Adds a news structure to the Nether, The Piglin Conservatory, along with a new Obsidian Apple, Dragon Fruit, Toxic Mushrooms, Hoglins' Fossils, Corrupted Emerald and a New Music Discs!

45kdownloads
NeuroLib
1.21.11neoforge

NeuroLib

A librabry for adjusting mob's AI

42kdownloads
Villager Library
1.21.8neoforge

Villager Library

Adds a Villager Library to plains a forest biomes

38kdownloads
Social Player Mobs
1.21.1neoforge

Social Player Mobs

Player mobs with behaviours, items / chest interactions and motives.

24kdownloads
Armadillo Brush Fix
1.21.4forge

Armadillo Brush Fix

Adds Armadillo Modded Brush Compatibility to Fabric & Forge

15kdownloads
Attribute Sculptor
1.21.1neoforge

Attribute Sculptor

This mod allows you to easily adjust the three-dimensional stats (health, attack, and defense) of players and creatures.

14kdownloads
Mxthy's ITALIAN BRAINROT
1.20.1forge

Mxthy's ITALIAN BRAINROT

a mod created with geckolib plugin that adds the italian brainrot character

12kdownloads
HZLib
1.21.1neoforge

HZLib

The shared library powering all Heria Zone mods. Provides the multi-loader entity framework, variant system, animation profiles, and platform services that every Heria Zone mod is built on.

9.3kdownloads
MobCivics
1.20.1forge

MobCivics

shared rendering abstractions and basic fear state tracking for villager-related entities, intended for use as a dependency by other mods.

8.2kdownloads
MateSignal
1.21.10fabric

MateSignal

Enables MateEngine–Minecraft interaction. Shows cute messages at key moments: day/night start, nearby mobs, low health or hunger, crafting, death, weather change, or sleep.

7.4kdownloads
Multi Mob
1.21.1neoforge

Multi Mob

A port of Multi Mob Library to 1.20+

7.3kdownloads
LovelyLib
1.21.1neoforge

LovelyLib

The robot-specific library shared by all Lovely Robot variants. Handles the robot type system, shared animation profiles, and save migration so that Legacy, Tribute, and Reboot don't duplicate core logic.

7.0kdownloads
Jockey API
1.21.5neoforge

Jockey API

Jockey is a lightweight API designed to simplify the implementation of custom entity jockeys using data tags.

6.2kdownloads
Boomerang
1.20.1forge

Boomerang

Mod that adds an 100% Working Boomerang (GeckoLib)

4.9kdownloads
SentinelLib
1.21.1neoforge

SentinelLib

A light-weight hitbox library for more engaging mob battles

4.7kdownloads
Sprunki Incredibox
1.21.1neoforge

Sprunki Incredibox

Have you ever heard of the Sprunki Incredibox? Well, here it is! This adds all of the Sprunki characters to the game! I hope my mod is a lot better than the other Sprunki mods, because I have cool animations!

4.2kdownloads