Mass

Minecraft should care what you are carrying.

Mass gives every item a weight. Carry too much and you slow down, lose sprint, lose jump, sink in water, and make horses regret meeting you.

What it does

• Tracks weight across armor, hotbar, inventory, and offhand
• Slows movement as your load goes up
• Disables sprint and jump at higher weight tiers
• Makes heavy players sink in water
• Slows horses and counts chest cargo on horse-type mounts
• Blocks elytra when you are over the limit
• Adds the Lightening enchantment to make armor lighter

A diamond chestplate weighs 8 kg. Full diamond is enough to matter. Full netherite is a life choice.

Install

• Use Paper 1.21.11+
• Drop the jar into plugins/
• Start the server once
• Edit plugins/Mass/config.yml if you want different weights or penalty thresholds
• Run /mass reload

Commands

All commands use mass.admin.

• /mass reload
• /mass info [player]
• /mass lore [player]
• /mass item set <kg>
• /mass item clear
• /mass give lightening [1-3]

Config

The config is where most of the real control lives.

You can change:

• item weights
• category defaults
• sprint and jump thresholds
• water sinking
• horse slowdown
• elytra limit
• enchantment settings

If you want the plugin to feel punishing, you can do that. If you want it lighter and more survival-friendly, you can do that too.

Build

mvn clean package

Output goes to target/Mass-1.2.jar.

Notes

• Stackable items do not get lore or extra item data that would break stacking
• The plugin uses Lightening, not Lightning. That is on purpose
• If something feels off, check the config first. Most of the balance lives there

Discord

If you want updates, feedback, or bug reports, join the Discord:

discord.gg/WQ628mcr4w