All the Mods 10 Bosses
L'Ender's Cataclysm
The biggest boss mod in ATM10. Cataclysm adds Souls-like combat encounters with complex mechanics, multiple phases, and unique loot. These bosses are found in custom-generated structures throughout the world.
Main Bosses (Recommended Progression Order)
1. Netherite Monstrosity
Location: Soul Blacksmith structure in the Nether
Difficulty: Medium
Your first Cataclysm boss. A massive golem-like creature in the Nether. Drops the Burning Ashes, a powerful weapon. This is the recommended starting point for the Cataclysm progression.
2. Ender Guardian
Location: Ruined Citadel in the End
Difficulty: Medium-Hard
A mechanical guardian found in End structures. Has ranged laser attacks and melee swipes. Drops Void Core materials used for powerful gear.
3. The Harbinger
Location: Overworld structures
Difficulty: Hard
Awakened using a Nether Star. A fearsome boss with devastating melee attacks and area-of-effect abilities. One of the most iconic Cataclysm encounters.
4. Ancient Remnant
Location: Desert structures
Difficulty: Hard
A skeletal dinosaur-like creature wearing an ancient pharaoh headdress. Found in pyramid-style structures. Has charge attacks and tail sweeps.
5. The Leviathan
Location: Ocean structures
Difficulty: Hard
A massive underwater boss. Requires preparation for aquatic combat. Drops unique ocean-themed equipment.
6. Scylla
Location: Underground structures
Difficulty: Very Hard
A multi-headed creature found deep underground. One of the more challenging Cataclysm bosses with multiple attack patterns.
7. Maledictus
Location: End structures
Difficulty: Very Hard
A cursed dragon boss. One of the toughest encounters in the pack. Requires high-tier gear and good dodging skills.
8. Ignis
Location: Nether structures
Difficulty: Extreme
The final Cataclysm boss. A fire-based entity with devastating attacks. Considered one of the hardest fights in all of ATM10. Bring fire resistance and your best gear.
Cataclysm Mini-Bosses
These are smaller but still dangerous encounters found throughout Cataclysm structures:
| Mini-Boss | Location | Notes |
|---|---|---|
| Ender Golem | End structures | Guards Cataclysm loot rooms |
| The Prowler | Various structures | Fast and aggressive |
| Kobolediator | Underground | Commands smaller mobs |
| Wadjet | Desert structures | Snake-like guardian |
| Amethyst Crab | Cave structures | Defensive fighter |
| Clawdian | Ocean structures | Aquatic mini-boss |
| Aptrgangr | Cold biomes | Undead warrior |
| Ignited Revenant | Nether | Fire-based mini-boss |
Twilight Forest
The Twilight Forest dimension has its own boss progression. Bosses must be defeated in order, as each one unlocks the next area. Access the dimension by throwing a diamond into a 2x2 pool of water surrounded by flowers.
1. Naga
Location: Naga Courtyard (open grassy area)
A giant snake that circles around a courtyard. The first boss you'll face in Twilight Forest. Relatively simple but fast. Drops Naga Scales used for armor.
2. Twilight Lich
Location: Lich Tower
A powerful undead mage at the top of a tall tower. Has three phases: shields phase (reflect his projectiles), summoning phase, and direct combat. Drops Lich Trophy and Scepters.
3. Minoshroom
Location: Labyrinth (underground maze)
Half minotaur, half mooshroom. Found at the bottom of a complex labyrinth. Has charge attacks and high health.
4. Hydra
Location: Hydra Lair (Fire Swamp)
A massive three-headed beast. Each head attacks independently with fire breath and bite attacks. One of the most impressive boss fights visually. Very high health pool.
5. Knight Phantoms
Location: Knight Stronghold (underground)
A group of six ghostly knights that fight together. They become more aggressive as their numbers decrease. Unique group boss mechanic.
6. Ur-Ghast
Location: Dark Tower (top)
A giant ghast hovering above the Dark Tower. Shoots fireballs and summons smaller ghasts. You need to destroy the towers that power its shields.
7. Alpha Yeti
Location: Yeti Lair (Snowy Forest)
A huge yeti that throws ice blocks and charges at players. Found in the snowy biome area of Twilight Forest.
8. Snow Queen
Location: Aurora Palace (Glacier)
The final Twilight Forest boss. Rides atop an ice crystal and has both melee and ranged ice attacks. Defeating her completes the Twilight Forest progression.
Eternal Starlight
A newer magical dimension mod with its own boss progression. Access the dimension through the Eternal Starlight portal. Use Seeking Eyes to locate boss structures.
1. Gatekeeper
Difficulty: Medium
A mini-boss that guards dimensional portals. Your first encounter in Eternal Starlight. Relatively straightforward fight.
2. Starlight Golem
Location: Golem Forge
Difficulty: Hard
Found in the Golem Forge structure. To damage it, you need to destroy the generators powering it first. Only then does it become vulnerable to attacks.
3. Lunar Monstrosity
Location: Cursed Garden
Difficulty: Hard
A plant-like monstrosity in the Cursed Garden biome. Key mechanic: you need to set it on fire before you can deal significant damage. Bring flint and steel or fire-based weapons.
4. Tangled Hatred
Difficulty: Medium-Hard
A mini-boss encounter. Less complex than the main bosses but still dangerous. Part of the Eternal Starlight progression.
Ars Nouveau
The Ars Nouveau magic mod includes four boss encounters. These are summoned using the Tablet of Summon Wilden, crafted from materials found throughout the world.
Wilden Hunter, Guardian & Stalker
Summoned via: Tablet of Summon Wilden
Three individual bosses, each with different abilities. The Hunter is fast and aggressive, the Guardian is defensive with high armor, and the Stalker uses ranged attacks. Defeating all three is required to summon the Chimera.
Wilden Chimera
Summoned via: Tablet of Summon Wilden (after defeating all three Wilden)
Difficulty: Hard
The main Ars Nouveau boss. Combines abilities from all three Wilden types, switching between attack styles. Drops valuable magical materials used in high-tier Ars Nouveau crafting.
Iron's Spells 'n Spellbooks
The Dead King
Location: Generated structures
Difficulty: Hard
An undead sorcerer boss added by Iron's Spells 'n Spellbooks. Casts various offensive spells and summons undead minions. Drops the Blood Staff, one of the powerful spell weapons in the mod.
Vanilla Bosses (Enhanced)
The standard Minecraft bosses are still present and relevant in ATM10:
The Warden
Deep Dark biome. Not technically a boss (no health bar) but extremely dangerous. Drops Sculk Catalyst. The Deep Dark is also where you mine Allthemodium, making it an important area for progression. See our dimensions guide.Ender Dragon
The End dimension. Standard fight but with better gear available. Defeating it is required to access End resources like Unobtainium.Wither
Summon with 4 Soul Sand + 3 Wither Skeleton Skulls. Drops Nether Star, which is needed for various recipes including summoning The Harbinger (Cataclysm).Combat Tips for ATM10 Bosses
Boss Summary Table
| Boss | Mod | Location | Difficulty |
|---|---|---|---|
| Netherite Monstrosity | Cataclysm | Nether | Medium |
| Ender Guardian | Cataclysm | End | Medium-Hard |
| The Harbinger | Cataclysm | Overworld | Hard |
| Ancient Remnant | Cataclysm | Desert | Hard |
| The Leviathan | Cataclysm | Ocean | Hard |
| Scylla | Cataclysm | Underground | Very Hard |
| Maledictus | Cataclysm | End | Very Hard |
| Ignis | Cataclysm | Nether | Extreme |
| Naga | Twilight Forest | Twilight Forest | Easy |
| Twilight Lich | Twilight Forest | Twilight Forest | Medium |
| Minoshroom | Twilight Forest | Twilight Forest | Medium |
| Hydra | Twilight Forest | Twilight Forest | Hard |
| Knight Phantoms | Twilight Forest | Twilight Forest | Medium-Hard |
| Ur-Ghast | Twilight Forest | Twilight Forest | Hard |
| Alpha Yeti | Twilight Forest | Twilight Forest | Medium |
| Snow Queen | Twilight Forest | Twilight Forest | Hard |
| Starlight Golem | Eternal Starlight | Eternal Starlight | Hard |
| Lunar Monstrosity | Eternal Starlight | Eternal Starlight | Hard |
| Wilden Chimera | Ars Nouveau | Overworld (summoned) | Hard |
| The Dead King | Iron's Spells | Overworld | Hard |
| The Warden | Vanilla | Deep Dark | Very Hard |
| Ender Dragon | Vanilla | The End | Medium |
| Wither | Vanilla | Anywhere (summoned) | Medium-Hard |