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Minecraft Java 1.21 Mods

Browse 50 free mods for Minecraft Java 1.21 — popular picks include Ars Elemental, Ars Affinity, Crystal Chronicles - Iron's Spells 'n Spellbooks.

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Ars Elemental
1.20.1forge

Ars Elemental

Ars Nouveau addon focused on the 4 elemental schools. New glyphs and spell foci awaits

58Mdownloads
Ars Affinity
1.21.1neoforge

Ars Affinity

Affinity represents a bond to a certain school of magic - this is a passive progression addon for Ars Nouveau

2.1Mdownloads
Crystal Chronicles - Iron's Spells 'n Spellbooks
1.21.1neoforge

Crystal Chronicles - Iron's Spells 'n Spellbooks

Addon for Iron's Spells n Spellbooks - expanding the schools of magic with unique armors, weapons and biomes.

625kdownloads
Earth Mobs Mod
1.21.4neoforge

Earth Mobs Mod

A colorful new variety of mobs to discover, and more! This was a high school project of mine I did for college applications

352kdownloads
Irons Spells 'n Spellbooks Restrictions
1.20.1forge

Irons Spells 'n Spellbooks Restrictions

Learn every school of magic from Iron's Spells 'n Spellbooks!

341kdownloads
Wind's Spellbooks : Iron's Spells 'n Spellbooks Addon
1.20.1forge

Wind's Spellbooks : Iron's Spells 'n Spellbooks Addon

Add a brand new "Wind" school to irons spells n spellbooks

257kdownloads
Discerning The Eldritch
1.21.1neoforge

Discerning The Eldritch

An Addon for Iron's Spells and Spellbooks expanding on the Eldritch School

169kdownloads
SnackPirate's Aeromancy Additions
1.21.1neoforge

SnackPirate's Aeromancy Additions

An add-on for Iron's Spells 'n' Spellbooks, which adds a Wind school of magic.

163kdownloads
Magic From The East
1.20.1forge

Magic From The East

An add-on mod for Iron's Spell n' Spellbooks that adding new schools, spells and stuffs inspired from ancient Asian and Middle Eastern culture

154kdownloads
Magic Schools Skill trees: Addon for Iron's Spells 'n Spellbooks Unofficial Skill Tree
1.19.2forge

Magic Schools Skill trees: Addon for Iron's Spells 'n Spellbooks Unofficial Skill Tree

This mod adds a skill tree for each magic school present in Iron's Spells, it's meant to be used with "Unofficial Iron's Spells 'n Spellbooks Skill Tree"

138kdownloads
Farmer's Spell 'n Spell Book
1.21.1neoforge

Farmer's Spell 'n Spell Book

A dual crossover addon for both Iron's Spells 'n Spellbooks and Farmer's Delight, featuring magical culinary recipes and the brand-new School of Gluttony.

100kdownloads
Spell Vulnerabilities
1.21.1fabric

Spell Vulnerabilities

Configure custom resistances and vulnerabilities for mobs to different spell schools

71kdownloads
Tunes n' Tomes: a bards journey
1.21.1neoforge

Tunes n' Tomes: a bards journey

An Iron Spells n' Spellbooks addon that introduces the sound school from the Alshanex Familiars mod rebranded as Melodic School and expanded

70kdownloads
Monsters & Spellbooks: Iron's Spells 'n Spellbooks Addon
1.21.1neoforge

Monsters & Spellbooks: Iron's Spells 'n Spellbooks Addon

A medium sized addon for the popular mod Iron’s Spells ‘n Spellbooks that brings a 90+ spells,2 new spell schools and a ton of new gear and enemies

50kdownloads
Elemental Synergies
1.21.1neoforge

Elemental Synergies

The Hazen 'n Stuff expansion module, expanding on synergies and making hybrid equipment for schools

44kdownloads
Old School Minecraft
1.21.1fabric

Old School Minecraft

Brings back the old Alpha/Beta feel of Minecraft! While having the new features!

32kdownloads
Crystal Chronicles
1.21.1neoforge

Crystal Chronicles

Addon for Iron's Spells 'n Spellbooks - expanding the schools of magic with unique armors, weapons and biomes.

30kdownloads
Asterism Arcanum | Addon for Iron's Spells and Spellbooks
1.21.1neoforge

Asterism Arcanum | Addon for Iron's Spells and Spellbooks

Asterism Arcanum is an addon introducing the Astral School of magic to Iron's Spells and Spellbooks.

28kdownloads
WitchHazel Halloween Magic
1.21.1neoforge

WitchHazel Halloween Magic

A magic modpack filled with every school of wizardry, with a fall autumn aesthetic.

9.1kdownloads
Matti's Skyblock
1.21.1neoforge

Matti's Skyblock

Matti's Skyblock is an old-school skyblock modpack with several tech, magic, and dimension mods. You can play solo or multiplayer. 100+ quests and 200+ mods.

4.3kdownloads
CRYPTID-Old School Horror
1.21.1neoforge

CRYPTID-Old School Horror

Meet old school Minecraft with modern analog horror.

4.2kdownloads
Iron's Spells 'n Spellbooks:Monsters & Spellbooks
1.21.1neoforge

Iron's Spells 'n Spellbooks:Monsters & Spellbooks

A medium sized addon for the popular mod Iron’s Spells ‘n Spellbooks that brings a 100+ spells,2 new spell schools and a ton of new gear and uniqye spell casting enemies

3.8kdownloads
Spellbooks: Unraveling the Spells
1.20.1forge

Spellbooks: Unraveling the Spells

Adds the mechanics of learning magic schools and spells from Iron's Spells 'n Spellbooks

1.8kdownloads
Iron's Spells 'n Spellbooks: Unstable Magic
1.21.1neoforge

Iron's Spells 'n Spellbooks: Unstable Magic

An explosive addon for Iron's Spells 'n Spellbooks introducing a chaotic new school of highly destructive Unstable Magic.

1.7kdownloads
Prismara
1.21.1neoforge

Prismara

Dive into the fascinating world of Prismara, where magic and exploration come together. Explore vast biomes, face powerful bosses, and uncover the secrets of various schools of magic and witchcraft.

619downloads
Hasugoods
1.21fabric

Hasugoods

Adds Hasunosora Girls' High School Idol Club items to the game.

443downloads
Mushoku Craft
1.21.1fabric

Mushoku Craft

A hardcore RPG mod inspired by the Mushoku Tensei universe. Master intense sword styles, level up magical schools from scratch, and forge powerful modular artifact weapons using custom mini-games.

418downloads
CraftiLetras
1.21.4fabric

CraftiLetras

Official Modpack created mainly for all the colleagues of the “Facultad de Letras”, teachers and students. To create something great. Equally accessible to all those interested in a modpack with everything you could want in this version 1.21.1.

243downloads
MoonVeil
1.21.1neoforge

MoonVeil

MoonVeil, an old school Minecraft RPG Modpack experience!

102downloads
Sourcite Ore Mod
1.21.1neoforge

Sourcite Ore Mod

This mod was made for my school assessment. Nothing much, just an ore mod.

69downloads
Cataclysm Spellbooks Mod (1.21.1, 1.20.1) – Master Boss-Themed Spells
1.21.1neoforge

Cataclysm Spellbooks Mod (1.21.1, 1.20.1) – Master Boss-Themed Spells

Cataclysm Spellbooks Mod adds new spells and abilities for players using Iron's Spells 'n Spellbooks and L_Ender's Cataclysm. This addon introduces 65 new spells to learn and master. It also brings two new spell schools to the game: Abyssal and Technomancy. The Abyssal school features magic based on the Leviathan, while Technomancy includes spells inspired […]

KubeJS Iron's Spells Mod (1.21.1, 1.20.1) – Creating Custom Spells
1.21.1forge

KubeJS Iron's Spells Mod (1.21.1, 1.20.1) – Creating Custom Spells

KubeJS Iron's Spells Mod is an addon that integrates Iron's Spells and Spellbooks into KubeJS. Features: Creating custom spells and spell schools Creating custom Alchemist Cauldron recipes Creating custom spellbooks, staves and magic swords EntityJS compatibility for custom spell casting mobs, spell projectiles, and to modify existing mobs to cast spells and use spell casting […]

Sword Blocking Mod (1.21.8, 1.20.1) – Old-school PvP Vibe
1.21.8neoforge

Sword Blocking Mod (1.21.8, 1.20.1) – Old-school PvP Vibe

Sword Blocking Mod is a client-side tweak that revives the nostalgic sword-blocking animation from Minecraft’s pre-1.9 combat era. Features: Restores sword-blocking animation when holding a shield in your offhand. Works especially well on ViaVersion servers, allowing newer clients to mimic older combat visuals. Purely cosmetic-doesn’t affect damage, durability, or combat mechanics. Recommended to pair with […]

Spell Power Attributes Mod (1.21.1, 1.20.1) – Library for Magical Abilities and Items
1.21.1fabric

Spell Power Attributes Mod (1.21.1, 1.20.1) – Library for Magical Abilities and Items

Spell Power Attributes Mod introduces new Entity Attributes for powering magical abilities, for the following magic types (schools): Arcane Fire Frost Healing Lightning Soul The library offers an API to query spell damage of an entity (based on its attributes, status effects, enchantments), and provides critical strike chance and multiplier. The design intent is to […]

Ars Elemental Mod (1.21.1, 1.20.1) – Master a School of Elemental Magic
1.21.1forge

Ars Elemental Mod (1.21.1, 1.20.1) – Master a School of Elemental Magic

Ars Elemental Mod expands the Ars Nouveau mod by focusing on the four elemental schools of magic. It adds new glyphs for spellcasting and powerful spell foci to specialize your abilities. This addon also includes the elemental armors from Ars Arsenal, which have been restyled to fit newer armor models. Features: New Glyphs Watery Grave: […]

More Spell Attributes Mod (1.21.1, 1.20.1) – Master New Spell Schools
1.21.1fabric

More Spell Attributes Mod (1.21.1, 1.20.1) – Master New Spell Schools

More Spell Attributes Mod expands the Spell Power Attributes system with new Spell Schools and related enchantments. Features: New Spell Schools: Blood, Corruption, Nature, Sound, Water, and Wind. Spell Power Enchantments: Spell Channeling: Boosts spell damage. Viscosity: Enhances Blood and Water spell power. Fertility: Increases Corruption and Nature spell power. Volatility: Strengthens Sound and Wind […]