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Minecraft Java 1.21 Mods

Browse 226 free mods for Minecraft Java 1.21 — popular picks include Spell Engine, Spell Power Attributes, ShadowizardLib.

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Spell Engine
1.21fabric

Spell Engine

🪄 Data driven magic library

20Mdownloads
Spell Power Attributes
1.21neoforge

Spell Power Attributes

🔮 Spell Power entity attributes with related status effects and enchantments

19Mdownloads
ShadowizardLib
1.21.10neoforge

ShadowizardLib

A library mod that contains shared code between my mods

11Mdownloads
Summoning Rituals
1.21.1neoforge

Summoning Rituals

Create custom summoning rituals for items, mobs and commands.

9.8Mdownloads
Idwtialsimmoedm
1.21.8fabric

Idwtialsimmoedm

I didn't want to install a library so I made my own Enchantment Descriptions mod

9.7Mdownloads
GTBC's SpellLib/API
1.21.1neoforge

GTBC's SpellLib/API

A library mod and common code storage for all of my mods containing helpful tools to make my life easier with ISS add-on making!

7.5Mdownloads
More RPG Library
1.20.1fabric

More RPG Library

Library with status effects, entity attributes & Spell engine API additions.

6.9Mdownloads
Loading Backgrounds
1.21.4neoforge

Loading Backgrounds

Customize the loading background of the games, and place customizable images.

6.8Mdownloads
RunicLib
1.20.1forge

RunicLib

RunicLib is a library for Azurune mods that adds MultiLoader utils and attributes/effects for utilization.

5.1Mdownloads
Photon
1.21neoforge

Photon

Photon - Making mc effects as Unity

4.2Mdownloads
Dynamic RPG Resource Bars
1.20.1neoforge

Dynamic RPG Resource Bars

Animated, adjustable RPG resource bars!

3.0Mdownloads
Custom Machinery Ars Nouveau
1.21neoforge

Custom Machinery Ars Nouveau

Ars Nouveau support for Custom Machinery

2.1Mdownloads
Ace's Spell Utils
1.21.1neoforge

Ace's Spell Utils

An util API for making Iron's Spells and Spellbooks addons

1.3Mdownloads
ColorBlindness
1.21.4forge

ColorBlindness

Potion effects that simulate color blindness (Forge, NeoForge, Fabric, Quilt)

1.3Mdownloads
Shoulder Surfing: Iron's Spells Integration
1.20.1forge

Shoulder Surfing: Iron's Spells Integration

Integrates Shoulder Surfing Reloaded with Iron’s Spells ’n Spellbooks, making the camera automatically follow your crosshair whenever you cast a spell—via spellbooks, normal spells, or quick cast. Compatible with controller mods.

1.1Mdownloads
Enchant Limiter (RPG Tweaks)
1.21.1fabric

Enchant Limiter (RPG Tweaks)

Limit the number of enchantments on an item.

1.0Mdownloads
RPGMana (Mana for Spell Engine)
1.21fabric

RPGMana (Mana for Spell Engine)

Bringing Mana to the Spell Engine mods!

978kdownloads
MagicLib
1.21.4neoforge

MagicLib

To beat magic with magic :(

843kdownloads
Critical Strike
1.21fabric

Critical Strike

🍀 Chance based critical hits for melee and ranged attacks!

785kdownloads
ToroHealth Damage Indicators (Updated)
1.21fabric

ToroHealth Damage Indicators (Updated)

Updated version of ToroHealth for Fabric 1.19.3 and newer

680kdownloads
Multiblocked2
1.20.1forge

Multiblocked2

Multiblocked2 is the more powerful visual custom machine/multiblock mod after mbd.

523kdownloads
More Spell Attributes [More Magic Series]
1.21.1neoforge

More Spell Attributes [More Magic Series]

More Spell Attributes and relative enchantments for your favorite spell caster!

521kdownloads
CoreProtect
1.16.5

CoreProtect

CoreProtect is a fast, efficient, data logging and anti-griefing tool. Rollback and restore any amount of damage. Designed with large servers in mind, CoreProtect will record and manage data without impacting your server performance.

485kdownloads
Spells & Shields
1.21.1neoforge

Spells & Shields

Vanilla+ style magic extension that adds mana and spell trees. Fully data driven.

442kdownloads
Apothecary - Potion Expansion
1.21.1neoforge

Apothecary - Potion Expansion

A potion expansion with a large variety of different effects!

223kdownloads
Ars Sable
1.21neoforge

Ars Sable

A compatibility mod for Ars Nouveau and Sable sublevels.

190kdownloads
Potion Core Reborn
1.21.5neoforge

Potion Core Reborn

Revives Potion Core and bring it to modern versions

178kdownloads
ExecutableItems
1.12

ExecutableItems

Custom Items, ExecutableItems plugin allows you to fully customize every aspect of your items, and adding unique activators on your items !

130kdownloads
MythicMobs
1.21.4

MythicMobs

Create custom mobs and bosses with advanced skills, attributes, equipment, and more!

99kdownloads
Break My Fall
1.21.1fabric

Break My Fall

Adds configurable features related to falling and fall damage like breaking snow on impact or taking fall damage in different water depths!

61kdownloads
SauceLib
1.21.1neoforge

SauceLib

Library shared between Ars Nouveau addons, containing shared mechanics, attributes and the Liquid Source fluid

55kdownloads
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
Gravity Control
1.21.1neoforge

Gravity Control

Lets you change player gravity direction

42kdownloads
MiniPlaceholders
1.21

MiniPlaceholders

MiniMessage Component-based Placeholders API for Minecraft Platforms

37kdownloads
EnderChest
1.18

EnderChest

⭐Trusted on 600+ Server⭐Opens your Ender Chest with /ec /enderchest⭐ Configurable storage type ⭐Anti Dupe⭐ Custom Enderchest Size⭐ Custom Sounds ⭐Folia Support⭐And many More⭐

36kdownloads
Spell Engine Extension (RPG Series Tweaks)
1.21.1fabric

Spell Engine Extension (RPG Series Tweaks)

Extends the mod 'Spell Engine' with additional functionality.

27kdownloads