Fabric Mods for Minecraft 1.21
Browse 229 free Fabric mods for Minecraft 1.21 — popular picks include dungeoncraft-r, Sleep Vote, WildFrontierr.
Updated daily
dungeoncraft-r
DungeonCraft is a modpack that brings the Minecraft Dungeons experience into Minecraft with new camera, dungeons, animations, and bosses.
Sleep Vote
Sleep Vote adds a configurable multiplayer night skip voting system to Minecraft, letting all players vote to skip the night with interactive chat buttons, boss bar feedback, and optional automatic night votes.
WildFrontierr
WildFrontier is a wilderness survival & RPG adventure modpack for Fabric 1.21.1. Explore stunning terrain, battle bosses, level up your skills, and thrive in a dangerous world solo or with friends.

Pantheon Adventure
Thirteen god bosses, each enthroned in their own hand-built temple dimension. Complete the trials, forge the divine keys, open the gates — and bring Olympus down, one throne at a time.
Project: TitanSlayer
Slaughter Mobs and Bosses in a Doom Style
Rubens Better Survival
Overhauls Minecraft to a better Game! This Modpack overhauls the Visuals, improves Gameplay and adds new Structures and bosses!
Mid Optimized Plus+
it's Mid Optimized but with extra mods adding new bosses , mobs , biomes and more..
Chill&Stay
This is a modpack for my private smp, includes new building blocks, new foods, mobs some new bosses and enemys, a lot of QoL features, and the necessery optimanizations
Holiday blocks
An immersive RPG exploration modpack featuring enhanced visuals, atmospheric sound, challenging bosses, and dynamic world generation, all optimized for smooth performance and engaging long-term gameplay.
Nether chambers
Adds custom trial chambers, mace, boss and items to the nether
Slot Highlight for CI Embossed Legacy
A custom slot highlight designed for CI Embossed Legacy. / Un resaltado de slots personalizado diseñado para CI Embossed Legacy.
ProjectOverhaul
Overhauls Minecraft in different ways like adding new bosses, weapons, QOL Features, Structures, etc.
Arbiter
Server-side ground item cleaner for Fabric with bossbar countdown, TPS-aware emergency clearing, and per-dimension protection rules.

Chaos Structures
Every 60 seconds, a random player is chosen and a random vanilla structure spawns nearby. Players receive countdown warnings and a bossbar timer, turning every world into unpredictable chaos.
UniversalX CB
A power focused modpack packed with QOL features, bosses, and armor and weapons to battle them. While also maintaining 100+ FPS (new version coming soon)
Mantis World
This mod was developed by Murav4ik studios. This mod adds different insect bosses. Currently in fashion there are: ant mandible claw, Ant Lord boss.
CraftCore Modpack (Without Bossbar)
The official CraftCore Modpack 2025, without the Bossbar Overlay
Esoteric
Animations, Visual Effects, Terrian Enhancements + Structures. This pack also includes rebalancing of bosses. which makes some mobs + bosses more difficult
Zombieium
Zombieium adds configurable night-time zombie waves and an optional boss encounter with a red warning beam, fiery arrival effects, and unique drops.
MehrPinguin
A mod adding penguins, biomes, structures, rituals, and bosses – currently only available in German language.
BossHeart
A mode that makes playing more comfortable
The game Built For YOU
This modpack is somewhat "lightweight" this adds a few new mobs bosses and features have fun!
Raijin's Wrath
Unleash the wrath of Raijin — a Fabric adventure of thunder-forged gear, lightning-touched foes, summonable bosses, sacred shrines, and an in-game compendium guiding your ascent.
Jeff: The Awoken Core
Face Jeff, a late-game raid boss who tests your skill, strategy, and timing to earn powerful loot and master Minecraft combat
Creations Of Tygrys
Mod made for fun, adding new boss, dimension and structures!
Olympus Rush
Climb a hand-sculpted Olympus and slay its thirteen gods — God of War-style boss battles with the Blades of Chaos, and Hades waiting on his throne beneath the world.
Cake Tower HUD Plus
HUD overhaul and optional server-side combat stats for the Cake Team Towers · Chapter 3 map—health, hearts, resources, team/mob 3D bars, stats panel, boss-bar toggles; v6+ damage attribution, K/A/D taken, DPS, session history. Auto-hides elsewhere.
Trick Quiver
An archery combat mod: switch between 12 magic arrows, craft bow attachments, battle clockwork archers, and raid a Japanese-style boss shrine. One arrow solves everything.
The Legend Returns
Herobrine has returned. Cursed structures, shadow clones, epic boss fight, and dark portals await. Survive the apocalypse.
Amethyst Age
Expand Minecraft's amethyst progression with new tools, armor, weapons, food, a custom biome, Crystal Merchant, Crystal Warrior boss, advancements, and unique abilities like 3×3 mining, Tree Chopper, and Crystal Charge! 💜
Telum Solaris - At the Forest's Edge
Telum Solaris aims to add new weapons, armor and boss to minecraft for every stage of minecraft's progression. It is currently my first and only project!

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.
valhalla
Lots of norse-themed items, tools, bosses and more!
Empowered Armory
This mods adds addition weapons, items, weapons, tools, blocks, bosses and armor
Larp Craft Modpack
Vanilla+ Fabric SMP featuring Terralith, YUNG's Better Structures, Bosses of Mass Destruction, End Remastered, Farmer's Delight, and quality-of-life improvements. Minecraft 1.21.1.
Cobblemon Boss Mod (1.21.1, 1.21) – Configurable Boss Levels
Cobblemon Boss Mod add and customize Boss Pokémon through datapack JSON files and generated TOML configs. Boss definitions use required identifiers (unique_id, display_name, species_id) and optional modules that control spawn rules, reward rules, punish rules and randomized battle builds. Features: Adds support for creating and customizing Boss Pokémon via datapack JSON files Allows adding unlimited […]