Minecraft Java 1.21 Mods
Browse 744 free mods for Minecraft Java 1.21 — popular picks include randomitems-mod, Coinkeep, Potion of Immortality.
Updated daily
randomitems-mod
Adds /randomitems, /randommobs, /randomweapon, /randomarmor, /randomtool and /randomquest commands that periodically give random items, spawn random mobs, swap your gear, or assign 5-minute random quests with a boss bar and personal sidebar.
Coinkeep
A full economy for Minecraft: 180 quests to earn from, a supply-and-demand market, banknotes you can actually hold, and vaults other players can crack open. Every quest and price is JSON, so modpacks can retune anything.
Potion of Immortality
adds immortality potions and arrows to minecraft
zCaps
Allows players to type commands in any capitalisation. (e.g. /Gamemode, /SuMmOn)
Player Immortal
A lightweight Bukkit/Spigot/Paper plugin that gives operators (OP) god-mode immunity, preventing death from any damage source.
Ace Up The Sleeve
Drop to 4 hearts and trigger your Last Stand — summoning Guardian golems and granting powerful buffs to turn the tide of battle.
GhastTaxi
GhastTaxi transforms travel into an immersive aerial experience. Players simply request a ride and take off on a custom happy ghast that flies smoothly from one destination to another with beautiful particle trails!
NightMarket
Per-player Night Market with random items & random discounts, reveal-card GUI, full in-game admin setup, Vault economy, command rewards, and custom-item support (Oraxen/ItemsAdder/MMOItems). Paper 1.21.1.
Fishy Folk
An Origins mod data pack with merling spinoff origins
WildArch Fates
WildArch Fates is a vanilla-friendly RPG plugin that makes your experience even better! With 4 distinct playable classes: Mage, Samurai, Alchemist, and risk-taking Gambler. Master unique abilities, 10 brand-new custom potions, and 3 new, custom totems!
Ravenborne
Class based medieval fantasy rpg mod based by Ravenborne theme!
NPCSpeak
AI-powered Minecraft NPCs that actually negotiate, persuade, interrogate, and quest, not just chat.
Knowledgebound
KnowledgeBound is a server-side RPG skill progression and balancing mod for Minecraft (Fabric 1.21.1). It replaces standard vanilla progression with a time-and-action-based knowledge system.
SkillBind Bridge
Custom keybind support for MMOCore skill slots using a Fabric client mod and server plugin bridge.
Anti Magick: Companions
Optional Anti Magick integration that suppresses Companions weapon abilities and supported summons
GemServer
GemServer is an AI-powered assistant for Paper Minecraft servers. It allows players to interact with Google Gemini directly from the game chat to get help, ask general questions, or inquire about the current status of the server.
Gala-IA-LORE
It is an advanced role-playing system that uses Artificial Intelligence (Ollama) to create unique stories and names for items in real time.
Ballz's RPG datapack
This datapack adds a firework fueled RPG.
Chanyoris MMO
Play Chanyoris and earn a little mcMMO skill XP based on your score. 茶ニョリスを遊ぶと mcMMO のスキルが少し上がる連携プラグイン。
SkillBind Bridge Server
Server-side bridge for casting MMOCore skill slots from SkillBind Bridge client keybinds.
PrivateQuestChest
A powerful per-player chest system designed for quest-based gameplay.
Anti Magick: Staff Mod
Optional Anti Magick integration that suppresses Staff Mod abilities and supported summons
MMOCritical
MMORpg Critical mechanics
Uncommon Ores
New ores with special mechanics
Questforge
A new way to track advancements and adds new ones
Are you Human?
Whenever you do stuff you get asked a question (e.g. Are you human)
Crqzy's Chronicle
Chronicle adds solo quests, server-wide community goals, and distributed weekly challenges to your Paper server — with GUIs, streaks, leaderboards, Discord webhooks, and full reward customization.
ExoLevels
ExoLevels is a lightweight and highly customizable leveling and quest system for Minecraft servers that rewards players with experience levels and challenges based on their actions
PayBack Core
A plugin where death makes you weaker and you must repay your debt through PvP or quests
Common Weapon Enchantments
All damage enchantments for all weapons.
Wandering Trader Summoning Ritual
Convert a villager to a wandering trader instead of waiting!
HereTowny
A paper plugin to turn towns into daily quest hubs to have the players care for each town and make them thrive
MashStrikeDrops
The plugin is aimed at event servers, crates-style mob encounters, grind zones, boss-lite content, and custom reward systems without needing MythicMobs or a larger RPG stack.
JoJoStands
A JoJo-inspired Paper SMP plugin with Stands, abilities, leveling, Stand controllers, Requiem Arrows, and Stone Ocean features.
silverfishes become fishes (and bassicly immortal in water)
this mod makes it that silverfishes die outside of water, and get weaker to, and in water they get sronger faster and more helath, and they also get set to 10 helath every time they touch the water, but if thwey leave they die, also in block = in water
itemleveler
AuraUpgrade: An advanced RPG system allowing players to upgrade weapons and armor using custom magical stones, featuring risky failure gambles.