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Minecraft Java 1.21 Mods

Browse 17 free mods for Minecraft Java 1.21 — popular picks include Legacy Smithing Table, Oldschool Netherite, Timewarp.

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Legacy Smithing Table
1.21neoforge

Legacy Smithing Table

This mod allows player to use the old-school smithing mechanism.

8.8kdownloads
Oldschool Netherite
1.21.4

Oldschool Netherite

Smelt Netherite directly from Ancient Debris. Instead of using the Smithing Table, craft Netherite Equipment like any other Equipment.

7.0kdownloads
Timewarp
1.21fabric

Timewarp

A Minecraft mod that revives classic Minecraft mechanics, adding areas with customizable old features, random challenges, and old-school gameplay elements for a unique nostalgic experience.

3.2kdownloads
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
UIM Minecraft - Hotbar Only
1.21.10

UIM Minecraft - Hotbar Only

Inspired by Old School Runescape's Ultimate Ironman mode, this datapack restricts your inventory and storage options, providing an interesting challenge and a new way to play.

871downloads
Old School Wool
rd-132211fabric

Old School Wool

Bring back the old school way of getting wool by punching sheep!

510downloads
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
BetterSuicide
1.21

BetterSuicide

Simple /kill and /suicide plugin for modern anarchy servers looking to replace OldSchoolKill

205downloads
CobbleBeta
1.21.1fabric

CobbleBeta

This modpack combines Cobblemon with Minecraft Beta 1.7.3 to create a nostalgic Pokémon survival experience, featuring classic terrain generation, old-school gameplay mechanics, and a simplified modded environment.

132downloads
Xanadu-mod
1.21fabric

Xanadu-mod

A rudimentary mod to remind you of school and the time-skip gadget you always wanted

102downloads
LyCH_OS's Tileman
1.21.8fabric

LyCH_OS's Tileman

An Old School RuneScape (OSRS)-inspired gridlock challenge mod.

98downloads
UIM - Only Hotbar (osplo version)
1.21.6

UIM - Only Hotbar (osplo version)

Inspired by Old School Runescape's Ultimate Ironman mode, this datapack restricts your inventory and storage options (original version by osplo)

97downloads
Bergie Tweaks
1.21.11fabric

Bergie Tweaks

Some old school style gameplay tweaks!

53downloads
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 […]

M
1.21

Magic Grimoire

A Minecraft plugin that adds a comprehensive magic spell system with six schools of magic, mana management, and grimoire-based casting mechanics.

82downloads
Arcane Cataclysm Unleashed Mod (1.21.11, 1.21.1) – Cast Elemental Spells
1.21.11

Arcane Cataclysm Unleashed Mod (1.21.11, 1.21.1) – Cast Elemental Spells

Arcane Cataclysm Unleashed Mod extends Iron's Spells 'n Spellbooks with over 50 spells, elemental grimoires, and gear tailored for tough combat encounters. It introduces the Aqua magic school to control water in battles against powerful mobs. The mod connects spellcasting mechanics with items and challenges from boss-heavy mods like Cataclysm and Born in Chaos. You […]

HazentouveLib Mod (1.21.1) – Cast Multi-School Spells with Ascended Armor
1.21.1

HazentouveLib Mod (1.21.1) – Cast Multi-School Spells with Ascended Armor

HazentouveLib Mod provides shared magic systems, spell schools, and equipment classes for addon mods. It acts as a core base that adds shared templates for spellcasting mobs, multi-school armor sets, and magical weapons. Other addons rely on this framework to run smoothly and share spell mechanics across different modded worlds. Features: Includes three core spell […]