Robots Mods for Minecraft Java
Browse 38,488 free Robots mods for Minecraft Java — popular picks include Musket Mod Revamped, PlayerModification [Modify per-world players' Health, Movement speed, Old PVP mechanics, and more], Cactus Nerfed.
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Musket Mod Revamped
A fork of ewewukek's Musket Mod with some additions, changes, a new config system, and active development.
PlayerModification [Modify per-world players' Health, Movement speed, Old PVP mechanics, and more]
Modify per-world players' Health, Speed, Old PVP mechanics, Allow-PVP, and more]
Cactus Nerfed
Nerf Cacti by having them now also require the blocks N;E;S;W of the block above to be air too.
End Crystals Break Bedrock
Makes end crystal explosions break the bedrock under them
Practical Barrels
Practical Barrels is a fully-clientside Fabric-based Minecraft mod designed to offer a unique sorting mechanism for barrels.
Mending Tools Don't Break
Stops tools enchanted with mending from breaking.
[1.7 - 1.12.1] Better TNT Mechanics » Added the old mechanisms of TNT
Simply to use! Now support 1.7 or higher!

Bucket of Wet Slop
The world is in turmoil and people are in pain. Even still, we can take comfort in knowing that there is bucket of wet slop.
Cooldown for Totem of Undying
Adds cooldown to Totem of Undying usage
ArcaneTable
This is a Minecraft Plugin which turns the default Enchantment table into a Magical Arcane Table, The Arcane Table changes the way default enchanting works by allowing you to directly enchant your items with what you want.
XGlow
Simple ProtocolLib based API to create glow on your entities.
No Hiding
There's no use hiding, they'll find you anyway. Monsters are now always chasing you!

ZygZag's Endgame Expansion
Things I think should be in vanilla, including a new tier of armor and weapons.
Core Energy
Core Energy will allow you to create amazing mechanisms that will help you in survival.
Bring Removed Recipes Back
Adds the recipes that have been added and then removed at some point in Minecraft's history
Omotions
Introducing Omori's emotions into Minecraft!
Somnus API
A lightweight library for integrated sleep mechanics on Fabric.
Deavy's Simple Soulslike Status Effects
A collection of status effects with display bars inspired by Soulsborne games
Fresh Air
Changing the way you play Minecraft in third person with a set of useful tweaks.
DinoBrik's Climate | Temperature System
Extreme Climate Survival. This data pack adds a temperature meter to the player's action bar. Depending on what biomes you are in, light levels, blocks you are standing on and other factors, the temperature will go up and down.
Industrial Creations
Enhance the recipe compatibility between Create and IC2
Voyager
A custom origin focused on magical abilities.
One Bad Apple
If one person dies, everyone dies.
FeelingLucky - A luck driven mechanics plugin
luck mechanic expansion
Player Only Loot
Mobs only drop loot from player kills (or player actors)
[Discontinued] Small Utilities
Improves the game with new mechanics, blocks, items and more.
Sub Origins
These data packs add several extra options to the base origins, allowing you to swap out some powers for another.
Ingstorm
Adds Metroid Prime 2 style passive damage in a highly configurable way.

NT-RPG
NT-RPG plugin - most advanced class plugin spells, integration into popular plugins like oraxen, itemsadder, mmoitems,.... No paywall forever free and opensource.
Cardinal Classes
Cardinal Classes is a simple and modular mod for Minecraft that adds a class mechanics to the game. The mod itself doesn't add any classes, but provides a framework for other mods to add their own classes. For now, it supports Fabric only.
CTOV - Etched Compat
Compatibility datapack between ChoiceTheorem's overhauled village and Etched mod
Ryser Gaming
Embark on a thrilling adventure with custom races, powerful magic, and innovative farming mechanics. Join our vibrant community or play solo as you explore a world transformed by this meticulously crafted mod pack.
Pillagers Improve Over Time
Pillagers get stronger the longer you play. Buffs include increasing health, speed, giving them powerful fireworks, blast protection, etc.
TFC Aged Booze
Aged drinks with various effects for TerraFirmaCraft Classic
LezaH Datapack
LezaH Datapack A great project by LezaHMC75. Release Date: January 15th, 2023
Odyssey
Odyssey is a mythology-themed content expansion implementing 12 unique classes and progression paths!