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Minecraft Java 1.21 Mods

Browse 13 free mods for Minecraft Java 1.21 — popular picks include JJs Engineer Mod (Maschinery, PVP, Decorative...), LifeSteal PVP, LGNcraft: Land of Tech.

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JJs Engineer Mod (Maschinery, PVP, Decorative...)
1.21forge

JJs Engineer Mod (Maschinery, PVP, Decorative...)

Engineer, Combat, Ores and Recources and Decorative stuff for 1.12-1.20

14kdownloads
LifeSteal PVP
1.21.11

LifeSteal PVP

Datapack for modified LifeSteal heart system

1.2kdownloads
LGNcraft: Land of Tech
1.21.1neoforge

LGNcraft: Land of Tech

Modpack to my server, LGNcraft. Providing mods from around tech based mods like Create, AE2, Refined Storage, and more.

1.2kdownloads
Combat Log Detector Plugin
1.16

Combat Log Detector Plugin

The Combat Log Detector is a Minecraft plugin that tracks players engaging in PvP and detects combat logging (players leaving during combat). It integrates with Discord to send notifications with player information, ensuring server admins are informed wit

1.2kdownloads
Cobblemon Elementals
1.21.1neoforge

Cobblemon Elementals

This is a Cobblemon Focused Pack that Allows you and Your friends to venture out to find all of the Cobblemon. It also includes many mods that make automation of pokeballs easier and more storage in a compact form.

1.0kdownloads
A Crazy Adventure: Science & Survival
1.21.1neoforge

A Crazy Adventure: Science & Survival

A blocky landscape with forests, mountains, a backpacked character facing a machine, and a purple Nether portal under bold white title text.

716downloads
CompassTrack
1.20

CompassTrack

Track players in real time with your compass — ideal for PvP, manhunts, and survival. Includes cooldowns, permissions, and live updates.

615downloads
Combat Plugin
1.21

Combat Plugin

Combatblock prevents combat logging by instantly killing players who log out during a fight and dropping their items. It also features a combat timer, kill credit system, and customizable display to ensure fair and trackable PvP encounters.

181downloads
RelishDeath
1.19

RelishDeath

[Huge updates and improvements🪦] ⚰️ Advanced Death Inventory Protection • Graves • Holograms • Particle Trails • PVP Grave • Player head

145downloads
Dacy's Toolbox
1.21.1neoforge

Dacy's Toolbox

This mod adds tools/weapons/blocks that aid a survival mode player in PvP or just minecraft in general, It adds anything you can think of, Ores, Armor, and a lot of tools.

70downloads
MapProtect
1.21

MapProtect

MapProtect is built to work alongside automated map rotation systems, allowing FFA servers to maintain clean, reusable arenas without requiring manual resets.

65downloads
Create Nuclear Immersive (Create V6 )
1.21.1neoforge

Create Nuclear Immersive (Create V6 )

An modpack with Create mods and other mods for storage mods and power

6.4kdownloads
Noxx Client Mod (1.21.11) – God Mode PvP Tools
1.21.11

Noxx Client Mod (1.21.11) – God Mode PvP Tools

Noxx Client Mod is a customizable utility and combat-enhancement client designed to improve gameplay efficiency, visibility, and control. Features: Advanced Combat Assistance – Automated combat actions and smart targeting for faster reactions. ESP Visualization – See players, storage, and important blocks through walls. World Scanner – Detect valuable chunks and hidden resources efficiently. Automation System […]