Eternal Series

All Content, No Fluff

A hardcore adventure modpack with an emphasis on ~semi-realism, extreme difficulty, and bounty-based progression.

Featuring realistic landscapes, limited tech, and extremely difficult mobs with added inferiority of life changes, alongside the addition of new blocks, items, and enhanced visuals.

*Not made for beginners (rng-based bounty progression)

Installation

1. Download Standalone Curseforge Launcher: https://curseforge.overwolf.com/

2. Search 'Eternal Series' in modpacks tab

Requirements

Full Version: 5 GB Minimum, 7-10 GB Recommended

Starting Guide

1. Break gravel to get flint

2. Right-click on a stone block to break flint into flint shards

3. Break leaves to get sticks

4. Use a stick and a flint shard to craft a knife

5. Harvest grass with the knife, kill a spider, or break a spiderweb to get string/plant fiber

6. Use a string/fiber, a stick, and a flint shard to craft a flint axe to chop wood

7. Use an axe to split logs into planks in the crafting grid

8. Craft a flint pickaxe with string/fiber, 2 sticks, and 4 flint shards

9. (optional) Find a bounty board in the outskirts of a village and begin questing

AI Suggested Boss Guide

🟢 TIER 1: The Early Game (Iron to Diamond Gear)

These bosses introduce you to modded combat mechanics. Brute force won't work; you need to figure out their puzzles.

Bulldrogioth (From the Shadows)

Location: Spawns naturally in Beach and Swamp biomes.

The Fight: A slow, heavy crustacean mini-boss. It’s easy to kite, making it a great first encounter.

Reward: Shells to craft early-game Crust Armor.

Ferrous Wroughtnaut (Mowzie’s Mobs)

Location: Found dormant in underground mossy cobblestone chambers.

The Fight: A pure puzzle boss. It takes 0 damage from all normal attacks. Bait its vertical slam attack so its axe gets stuck in the ground, then attack its exposed back.

Reward: The Axe of a Thousand Metals (Unbreakable).

Barako, the Sun Chief (Mowzie’s Mobs)

Location: Sitting on a throne in Savanna villages.

The Fight: He is immobile but summons minions and shoots devastating solar beams. A shield is mandatory to block the beams.

Captain Cornelia (Aquamirae)

Location: Must be summoned by blowing a crafted Shell Horn inside the Ice Maze biome.

The Fight: A fast, dashing swashbuckler boss. Keep your mobility up, use a shield, and bring water-breathing/warmth gear.

Cyclops (Ice and Fire)

Location: Rocky coves in Stony Shore and Ocean biomes.

The Fight: Massive hit-box and throws boulders. Use a bow to shoot him directly in the eye, which blinds him and leaves him vulnerable.

🟡 TIER 2: Mid-Game (Enchanted Diamond)

Fights start getting highly lethal here. Specialized gear or items are required.

Gorgon (Ice and Fire)

Location: Underground Gorgon Temples.

The Fight: Do not look at her. If you make eye contact, you instantly turn to stone and die. You must craft and equip a Blindfold to fight her safely using sound and hitboxes.

Frostmaw (Mowzie’s Mobs)

Location: Found sleeping in snowy biomes, guarding an Ice Crystal.

The Fight: Extremely fast with huge melee damage. Keep your distance when it charges its ice breath.

Night Lich (Bosses of Mass Destruction)

Location: Lich Towers in cold biomes. (Track them by collecting Soul Stars from undead mobs and throwing them like Eyes of Ender).

The Fight: Flies and spams magical projectiles. You cannot damage the Lich until you destroy the soul phylacteries scattered around the tower.

Hydra (Ice and Fire)

Location: Large cave openings in Swamp biomes.

The Fight: When you cut off a head, two more grow back. You must use fire (a Fire Aspect sword or flaming arrows) to cauterize the neck stubs.

Invoker (Illager Invasion)

Location: The top floor of Woodland Mansions.

The Fight: Teleports, summons minions, and uses explosive attacks. Drops the Hallowed Gem, needed for the Imbuing Table.

Stage 3 Dragons (Ice and Fire)

Location: Surface nests in various biomes (Fire/Ice/Lightning).

The Fight: Your first real dragon fights. Bring heavy fire/ice resistance. Excellent gateway for farming Dragonbone weapons and Dragonscale armor.

🟠 TIER 3: Late-Game (Early Netherite)

Bosses now require massive AoE, high armor penetration, and excellent movement.

Void Blossom (Bosses of Mass Destruction)

Location: Massive lush caves at the bottom of the Overworld (Y-30 or below). Tracked by following Void Lilies.

The Fight: Spits poison and uses thorny vines. Bring milk buckets, antidotes, and AoE weapons to clear the aggressive flora.

Ancient Remnant (L_Ender’s Cataclysm)

Location: Cursed Pyramids in Deserts.

The Fight: An undead triceratops that burrows underground and causes devastating screen-shaking earthquakes.

Nether Gauntlet (Bosses of Mass Destruction)

Location: Blackstone arenas in the Nether.

The Fight: A massive floating hand. Keep moving to avoid getting crushed by elemental area-denial attacks. You can only damage its central eye.

The Harbinger (L_Ender’s Cataclysm)

Location: Ancient Factory structures in the Overworld.

The Fight: A hyper-aggressive boss that uses Wither rockets and lasers. Lifesteal and heavy armor are required.

🔴 TIER 4: End-Game (Dragonbone / Cataclysm Modded Gear)

To enter this tier, you must have successfully gathered 12 custom eyes (End Remastered) to open the End Portal.

Ender Trigon (Ender Trigon)

Location: The End (replaces the vanilla Ender Dragon).

The Fight: A terrifying three-headed dragon with brutal new phases, enhanced AI, and massive AoE attacks.

Netherite Monstrosity (L_Ender’s Cataclysm)

Location: Soul Blacksmith structures in the Nether.

The Fight: A towering brute that launches lava and explodes the ground beneath you. Ranged weapons or hit-and-run tactics are highly recommended.

Stage 4 & 5 Dragons (Ice and Fire)

Location: Sleeping in massive underground Dragon Roosts. (They do not spawn on the surface!).

The Fight: Massive health pools and breath attacks that will melt you and the terrain. Do not wake them without maximum elemental resistance.

Ender Golem (L_Ender’s Cataclysm)

Location: Ruined Citadels in The End.

The Fight: Has incredible armor and massive knockback. Armor-piercing weapons are mandatory.

Obsidilith (Bosses of Mass Destruction)

Location: Floating arenas in The End void.

The Fight: An extremely tanky monolith that uses runes and teleports. An Elytra is highly recommended so you don't get knocked into the void.

☠️ TIER 5: Boss-Slayer (Perfected Builds)

The pinnacle of the modpack. If your gear is not completely min-maxed with Apotheosis affixes, you will die.

The Leviathan (L_Ender’s Cataclysm)

Location: Sunken Cities in the Ocean. (Summoned by placing an Abyssal Sacrifice).

The Fight: Fought entirely underwater. Depth Strider and underwater breathing are mandatory. Tip: Bring Blessed Amethyst Crab Meat to counter its hardest attacks.

Ignis (L_Ender’s Cataclysm)

Location: The Burning Arena in the Nether.

The Fight: Arguably the hardest mechanical boss in the pack. He heals in lava, deals true damage, and has a massive health pool. Fire resistance is useless against his true-damage flames. Pure skill and perfect dodging are required.

Void Worm (Alex’s Mobs)

Location: Summoned in The End using a Mysterious Worm.

The Fight: A colossal, cosmic centipede that tears through the dimension. An Elytra is absolutely mandatory to chase it down and dodge its portal attacks.

Celestial Jellyfish (Bosses Unleashed)

Location: Custom Cosmic Arena (Accessed via Wormholes in the End that close 10 seconds after appearing).

The Fight: A elite-tier test of your build featuring clone phases and massive orb barrages.

Luxtructosaurus & Tremorzilla (Alex’s Caves)

Location: Primordial Caves / Toxic Caves.

The Fight: These aren't just bosses; they are literal Kaijus. Tremorzilla's atomic breath and Luxtructosaurus's meteor roars will utterly obliterate your health bar and permanently destroy massive chunks of the terrain around you. Pure, unadulterated chaos