Frozen Nightfall Horde

Quickstart

1. Install both the Behavior Pack and Resource Pack from the .mcaddon file, then apply them to your world.
2. Load your world and run /locate biome iceberg_apocalypse to find the custom frozen biome.
3. Travel there and wait for nightfall — ice zombies will begin spawning in the darkness around you.
4. Watch your action bar: it shows the current day count and whether the horde is actively evolving.
5. Survive as long as you can. The longer you play, the stronger the zombies become.

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Overview

Frozen Nightfall Horde introduces a custom biome called iceberg_apocalypse that replaces frozen ocean areas in your world. By day it is a hauntingly beautiful landscape of towering icy spires. By night it becomes the hunting ground of an ever-escalating zombie apocalypse. Four variants of ice zombie stalk the darkness, and as world days pass they evolve into progressively deadlier forms — none of them burn in sunlight, so there is no safe reprieve when morning comes.

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What It Adds

The Iceberg Apocalypse Biome

• A fully custom biome with icy spire terrain features and its own surface generation.
• Replaces frozen ocean regions in world generation.
• Locatable at any time with the command: /locate biome iceberg_apocalypse

Ice Zombie Variants

All four variants are undead mobs that spawn in darkness on the surface of the biome. None of them burn in sunlight, making daytime only marginally safer than night.

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How To Use

Finding the Biome

Use /locate biome iceberg_apocalypse from anywhere in your world. The biome generates in place of frozen ocean regions, so it may be found at a distance depending on your world seed.

The Action Bar

While you have the packs active, a persistent status message appears on your screen showing:

• The current world day number
• Whether ice zombies are actively evolving (nighttime) or in a dormant state (daytime)

This is your key indicator of how dangerous the current night will be.

Spawn Eggs

All four ice zombie variants have spawn eggs available in Creative mode, letting you test or stage encounters anywhere.

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Abilities And Mechanics

Sun Immunity

Unlike standard zombies, all ice zombie variants do not catch fire in sunlight. Once they spawn, they persist through the day and continue pursuing players.

Evolution System

During the night, zombies within 96 blocks of a player have a chance to evolve into a stronger form. Evolution is checked regularly and the probability increases with each passing world day:

Evolved zombies are tagged so they do not evolve again on the same day. This means early nights are manageable, but extended play results in the biome filling with massive, high-health mutants.

Door Breaking

All variants can break wooden doors, so barricading yourself indoors offers only limited protection.

Water Conversion

If any ice zombie variant stays submerged in water long enough, it will convert into a standard Drowned — a double threat if fighting near the frozen ocean shore.

Loot

All four variants drop the same loot on death:

• Rotten Flesh (0–2, increased by Looting)
• Rare chance (≈2.5%, improved by Looting) to drop one of: Iron Ingot, Carrot, or Potato — when killed by a player or their pets.

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Progression And Strategy

• Days 0–2: Only Ice Zombies and Baby Ice Zombies appear naturally at night. Straightforward to handle with basic armor and weapons.
• Day 1 onward: Ice Zombies begin evolving into Mutant Ice Zombies during the night. Bring at least iron-tier gear.
• Day 3 onward: Mutant Ice Zombies can evolve into Super Mutant Ice Zombies — boss-class enemies with 120 health and 14 damage per hit. Diamond or Netherite gear is strongly recommended.
• Long-term: Evolution chance scales up with each day (capped at 70%/55%/45% per respective tier), meaning the horde composition steadily shifts toward the most dangerous forms. Plan shelters, escape routes, and supply stockpiles before venturing deep into the biome on later days.
• Hard difficulty is required for Super Mutant Ice Zombies to spawn naturally, making it the only difficulty where the full escalation chain is active.
• Because none of the zombies burn in sunlight, prioritize ranged combat and high ground — fighting in the open at close range becomes increasingly risky as days accumulate.