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Minecraft Java 1.20 Mods

Browse 43 free mods for Minecraft Java 1.20 — popular picks include MAJNR Skyblock (Official), Strange Aeons: Sword and Sorcery, Wither Storm (Quests update!).

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MAJNR Skyblock (Official)
1.20.1forge

MAJNR Skyblock (Official)

An adventurous Skyblock modpack with new mobs, bosses, and extra dimensions including the Aether.

23kdownloads
Strange Aeons: Sword and Sorcery
1.20.1forge

Strange Aeons: Sword and Sorcery

A dark-fantasy survival RPG where you become the monster—or hunt it—while earning power through cursed dimensions, ancient dungeons, and brutal bosses.

7.2kdownloads
Wither Storm (Quests update!)
1.20.1forge

Wither Storm (Quests update!)

Bacally one more Wither Storm modpack, But now with quest with paths to do! Peformace and monsters to kill? We have a much! And some bosses to fight while wither storm is hunting you!

4.1kdownloads
Harrowing Hells
1.21fabric

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.

3.6kdownloads
Quest of Survival
1.20.1forge

Quest of Survival

Tired of Minecraft being easy? Try Quest of Survival then. it is filled with a variety of hard boss fights, hundreds of structures with bosses and challenges, new and harder mobs etc. See if you have what it take to survive.

2.0kdownloads
Glowroot Caves: Hybrid Encounter
1.20.1forge

Glowroot Caves: Hybrid Encounter

Makes the Glowroot Hybrid boss from Glowroot Caves encounterable in survival gameplay.

1.5kdownloads
ZKQ – Zombie King Quest (Boss Fight + Structures + Progression)
1.20.1forge

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.

1.4kdownloads
Bossmode
1.20.1fabric

Bossmode

Bossmode is the difficulty above hardcore that turns every mob into a boss fight, including passive mobs. Can you survive?

1.2kdownloads
BLACKSOULS II
1.20.1fabric

BLACKSOULS II

A hardcore dark-fantasy RPG mod with custom stats, skills, bosses, souls, weapons, accessories, and brutal combat mechanics.

915downloads
Planetary Diaries
1.20fabric

Planetary Diaries

Epic Space Mod to extend your two week survival fase! With a brand new dimension with all new PLANETS you can discover over 20+ structures, new resources, blocks, creatures and even custom BOSSES!

801downloads
Harvest Festival
1.20.1forge

Harvest Festival

A hardcore RPG modpack featuring semi-anarchy survival, epic bosses from Cataclysm and Draconic Evolution, and a competitive tiered progression system.

748downloads
Upgrade Armor & Items +
1.20.1forge

Upgrade Armor & Items +

Create and Upgrade Versions of armors and items, Enhancing Hardcore Mods experience, adding bosses and new enemies using vanilla resources

723downloads
Total Survival-WL
1.20.1forge

Total Survival-WL

Hardcore and Fun Multiplayer modpack (Bosses, Mobs, Weapons, Armor, Accessories, Dimensions).

558downloads
The Final Boss
1.20.1forge

The Final Boss

A chaos‑themed mod adding devastating bosses, powerful items, and world‑ending attacks for extreme survival.

528downloads
Harrowing Hells (Data Pack)
1.20.1

Harrowing Hells (Data Pack)

[NOW SURVIVAL SUMMONABLE] Adds the Cinderscourge, a highly developed boss entity with a diverse arsenal of attacks at its disposal. Usable in mob battles.

133downloads
HardcoreMobs
1.13

HardcoreMobs

Script your own boss!

98downloads
Cool Tools & Weapons - Data Pack
1.20.3

Cool Tools & Weapons - Data Pack

This Data Pack adds: 5 new bosses,30+ new items,1 new dimension,1 new soul system to allow changes to spawners in a survival friendly way,3 new structures to that dimension,5 new biomes;

38downloads
Kult Craft Core Data Pack (1.21.1, 1.20.1) – Fight Custom Bosses Without a Long
1.21.1

Kult Craft Core Data Pack (1.21.1, 1.20.1) – Fight Custom Bosses Without a Long

Kult Craft Core Data Pack extends the Attribute Setter Mod by balancing health and damage numbers for several other mods. The pack lowers the health of specific boss-like monsters so they do not take forever to defeat in regular survival gameplay. Features: Changes the health stats for specific creatures from different mods so they fit […]

Squid Game V16.4 Map (26.2, 1.20.1) – Control a Hundred Desperate Players
1.20.1

Squid Game V16.4 Map (26.2, 1.20.1) – Control a Hundred Desperate Players

Squid Game V16.4 drops you into a massive survival competition where you are the boss. This map lets you play as the Frontman, so you can run the games however you want. You can invite up to 100 players to your world and watch them fight to survive the deadly challenges. Features: Be the Boss: […]

The Rake Horror Mod (1.20.1) – Night Stalking Boss Hunter
1.20.1

The Rake Horror Mod (1.20.1) – Night Stalking Boss Hunter

The Rake Horror Mod adds The Rake, a dangerous night creature inspired by popular Roblox horror games. It focuses on fair but intense survival combat and nighttime hunting mechanics. Features: Basic Behavior Spawns only at night Lives in a special cave structure (its base) Leaves the cave at evening and returns at sunrise Normally stays […]

Craftable Totem Of Undying – The Craftables Series Mod (1.21.1, 1.20.1)
1.21.1fabric

Craftable Totem Of Undying – The Craftables Series Mod (1.21.1, 1.20.1)

The Totem Of Undying is arguably one of the most powerful items in the game. With this item in your hand, you can defeat death. This will specially be useful when dealing with boss mobs and other difficult situations. Obtaining a Totem Of Undying in survival is a difficult task. You'll need to hunt down […]

Cannibal Conundrum Mod (1.20.1, 1.20) – Survive The Savage Life
1.20.1forge

Cannibal Conundrum Mod (1.20.1, 1.20) – Survive The Savage Life

Cannibal Conundrum Mod introduces brutal cannibal villages, hostile human mobs, and grisly mechanics that push survival into dark territory. The mod throws players into tense encounters with flesh-craving villagers wielding crude bone weapons and a mini-boss that rewards a deadly saw-making wilderness exploration both thrilling and terrifying. Features: Added 5 New items, 2 Useful blocks, […]

Yakurum Mod (1.20.1) – Conquer The Depths
1.20.1forge

Yakurum Mod (1.20.1) – Conquer The Depths

Yakurum Mod is an expansive water-themed mod that brings boss fights, powerful armor, unique weapons, and mystical creatures into your Minecraft world. Explore aquatic structures, battle ferocious sea monsters, and harness new resources to craft legendary gear. Features: Mysterious structures scattered across the world, holding secrets to uncover. Unique mechanics that enhance survival and combat. […]

Crevice Dungeon Data Pack (1.20.6, 1.20.1) – Hidden Depths
1.20.6

Crevice Dungeon Data Pack (1.20.6, 1.20.1) – Hidden Depths

Crevice Dungeon Data Pack brings a unique dungeon challenge with a powerful boss into the Minecraft world, called “Basilisk”. The game shifts from the usual mining/survival loop to exploring deep underground environments, fighting, and overcoming structured challenges. Features: Boss “Basilisk”: Custom creature using silverfish physique, has strange movement, has 100 HP, bite at 4 block […]

Hyper Mod (1.20.1, 1.19.2) – Bosses & More
1.20.1forge

Hyper Mod (1.20.1, 1.19.2) – Bosses & More

Once you reach a certain point in your survival gameplay, you will have access to high tier armor, powerful weapons, potions and more. And at this point, defeating vanilla mobs, including boss mobs like the Wither, may feel too easy. This is where Hyper Mod will bring you a more challenging experience. This mod introduces higher […]

SkyBlock Infinity Map (26.2, 1.20.1) for Minecraft
1.20.1

SkyBlock Infinity Map (26.2, 1.20.1) for Minecraft

SkyBlock Infinity Map is a survival map created by Willfaar and RickyKiller99. There are 100 missions to complete in this map. Some missions will make you farm a lot of crops, or kill lots of mobs or even defeat some bosses. Moreover, there are two secret bonus islands of huge dimensions with dungeons. Download the […]

ConRad's Scary Spiders
1.20.1forge

ConRad's Scary Spiders

Scarier Spiders perfect for horror, hardcore and vanilla+ modpacks! New boss, dungeons and weapons (and obviously spiders)

144kdownloads
RLCraft Fanmade
1.20.1forge

RLCraft Fanmade

The most challenging modpack for Minecraft, the legendary RLCraft, returns with its latest version. Enjoy endless adventures! With over 150 mods, countless monsters, and death pressing down on you, explore endlessly and challenge the final boss!

11kdownloads
Too Many Bosses
1.20.1forge

Too Many Bosses

A rich RPG-exploration modpack for 1.20.1, combining enhanced combat, epic dungeons, mythical creatures, and immersive visual and sound effects.

2.0kdownloads
Monster Hunter Realism Survival
1.20.1forge

Monster Hunter Realism Survival

Since I can't afford Monster Hunter: Wilds ($70), I modded Minecraft to recreate it! Using the Monster Hunter: Heaven & Hell mod and others, I built MH-style combat and fought bosses like Nargacuga

1.6kdownloads
MC Infinity RPG
1.20.1forge

MC Infinity RPG

Quests, Mobs, Bosses, Weapons, Armors and more !

1.4kdownloads
The Snasa Edition [FORGE]
1.20.1forge

The Snasa Edition [FORGE]

A new Hardcore Minecraft experience with new items,mobs, new Boss fight and horror elements

1.3kdownloads
Sharkberry Adventures
1.20.1forge

Sharkberry Adventures

An exploration-focused survival pack. Brave new dimensions, tough dungeons and bosses, smarter mobs, and Tetra-based gear in a highly immersive, living world.

528downloads
Mega Flux 2
1.20.1forge

Mega Flux 2

A high-spec heavy pack that greatly expands the content of existing Minecraft! Meet 1,000 monsters and 40 bosses!

503downloads
HardcoreMobs - create your perfect boss!
1.13spigot

HardcoreMobs - create your perfect boss!

Allows you to script your boss!

43downloads
Vanguard of the Abyss Mod (1.20.1) – Survive Eight Dark Dimensions
1.20.1

Vanguard of the Abyss Mod (1.20.1) – Survive Eight Dark Dimensions

Vanguard of the Abyss Mod transforms your world into a darker realm packed with new dimensions, dangerous bosses, and hundreds of fresh items. It revamps vanilla biomes and world generation to create a completely different survival atmosphere. You encounter strange creatures, explore large structures, and face tougher game mechanics. The mod also introduces warning sirens […]