Forge Mods for Minecraft 1.21
Browse 116 free Forge mods for Minecraft 1.21 — popular picks include Souls-like universe: Epic Fight updated, Super Bosses, Winter update.
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Souls-like universe: Epic Fight updated
Updated Version of an Addon for Epic Fight that adds Souls like mobs and Bosses to the game
Super Bosses
Any Monster can randomly spawn as a SUPER BOSS!!!
Winter update
This mod adds a lot of content to winter biomes. Starting from ordinary reindeer, ending with various bosses.
Brutal Nightmare : Insane Difficult
Minecraft too easy? Try this mods with nearly 40 modifiers - settings new mini bosses, which made minecraft become hard & insane. Enhanced hostile mobs' AI & Angry passive mob. Zombie place/break blocks. Skeleton,Spider,Creeper,Enderman.
Take Back the Night
A Herobrine bossfight mod inspired by Fargo's Souls
Apocalyptic Bosses
Michi'sProject
Desert Tombs
Adds a giant Tomb to desert biomes, introducing new mobs: the Scorpion, the Mummy, and a Pharaoh mini-boss.
Desert Scourge
Adds new unique boss in desert, based on Calamity Mod
Mocha's Complicated Bosses
Adds multiple difficult bosses with complicated AI and unique equipment
Beyond Bosses 2
This enderdragon overhaul will amaze you
Beyond Bosses
Beyond Bosses enhances the ender dragon boss introducing a new look to the end, a new ender dragon model, new boss attacks, and new boss music
Sensei Illager
Adds dojos and a Sensei Illager mini boss to cherry grove biomes.
Abyssal Corrupter
Face the terrifying Abyssal Corrupter — a multi-stage deep abyss boss that can be summoned via ritual altar in Minecraft 1.21.1 NeoForge.
Red Forest
Boss fights, quests, tasks, tools, and guns. Biomes and dimensions with 13+ mobs and 15+ structures and many more.
Nether Sentinel
Meet the Nether Sentinel: Minecraft's new Nether boss! Face this fiery challenge and prove your bravery in an epic battle.
Gateway of Doom
Throw a Devil Eye to open a configurable combat gateway. Survive random or fixed waves, bosses and timed challenges for rewards—or suffer debuffs. Includes auto gateways, custom mobs, profiles, admin menus, commands, diagnostics, plus a stable add-on API.
bosses' addition
a great challenge for those who are bored from vanilla, all in vanilla.
Slammer Boss
a mod that adds a new boss to the game
Ultimate Warden
A Datapack/Mod that enhances the Warden with a custom Dungeon, a Temple, boss battles, and more.
Krakentilus
Adds the Krakentilus boss, 2 unique Nautilus variants and 3 spears
Arda's Ultimate Golem
Arda's Ultimate Golem mod adds a powerful golem to the game, and this golem is a golem that helps you against bosses or creatures you fight.
Titans
This mod is made for those who love adventures. Adds new ore, materials, items, structures, and a boss
Monstrosteve
This mod adds a goofy boss mob.
The Old LMB
A Mod that adds new Bosses, more angry mobs and some animals from our planet
Hazelia
Hazelia dimension, creatures, and boss!
Harrowing Hells
[NOW SURVIVAL SUMMONABLE] Adds the Cinderscourge, a highly developed boss entity with a diverse arsenal of attacks at its disposal. Usable in mob battles.
Sol's Title System
A rich title progression system. Players earn titles by completing in-game achievements — slaying mobs, surviving, or defeating powerful bosses. Each title displays above the player's head and in chat, and can grant unique stat buffs while equipped.
Crowncrawl
It is a mod still in development that aims to improve the vanilla experience of the game by adding new bosses and items.
Harsh Encounters
Adds custom strong bosses to the game.
Contoro's Ores+
This mod adds ores and new tools and armor, but with a twist. The player needs certain leveled tools to get stronger ores. This mod also adds a new dimension and a new boss.
Harry's Hostile Expansion
Adds many different hostile mobs, mechanics, structures & bosses.
OHPS10 Boss
Adds the boss "Obama Harry Potter Sonic 10"
Bosscraft 2: Remake
Bosscraft 2: Remake is an unofficial project inspired by Sthullen's famous mod for older and outdated versions of Minecraft. This project takes the iconic mechanics of the classic mod and integrates them into modern versions of the game.
ZKQ – Zombie King Quest (Boss Fight + Structures + Progression)
Adds a powerful Zombie King boss, custom structures, Frux ore progression, and epic weapons for adventure-focused survival gameplay.
Boss Checklist - Mob AI Tweaks Compatibility
Integrates the Ominous Phantomare boss as well as the reworked Elder Guardian and Ravager from Mob AI Tweaks as entries in the Boss Checklist mod.
The World of Crackers
A new cracker biome with a new boss!