Zombie Apocalypse 999

Transform your Minecraft server into an epic survival experience with evolving zombies, blood moons, crafting, and dynamic mutation mechanics!

Zombie Apocalypse 999 is a comprehensive zombie survival plugin that introduces unique zombie mutations, an evolving threat system, player infection, custom crafting, safezones, permanent hearts, and configurable gameplay mechanics. Each day brings stronger zombies, new challenges, and evolving threats.

Features

🧟 Dynamic Zombie Evolution System

• Zombies gain experience from killing passive mobs and players, leveling up to become stronger
• Each level increases speed, health, and damage
• Zombies display their level above their head (e.g. "Zombie LV3")
• Normal zombies that reach max level mutate into a random special type
• Fully configurable EXP values and max level cap

🌙 Blood Moon Events

• Powerful zombie surge events that occur on a configurable schedule (default every 5 days)
• Massively increased spawn rates and mutation chances during blood moons
• Dramatic announcement with sound effects and particles
• Can ignore darkness requirements so zombies spawn everywhere
• Supports advanced cron-like scheduling with time windows

🧬 Unique Zombie Mutations

Every zombie has a chance to spawn as one of 11 unique mutation types:

Each mutation has individually toggleable abilities in the configuration. When a player becomes a mutation through infection, the mutation can also grant them permanent extra hearts (configurable per mutation).

🫀 Custom Item Drops

• Zombie Heart — All zombies have a 5% chance to drop a Zombie Heart (configurable)
• Each mutation type has its own unique loot table with configurable drop chances
• Loot tables support per-item drop chances and custom materials

🧪 Crafting System

Access the crafting menu with /za crafting to craft special items:

Cure Potion

• Recipe: 1 Water Bottle + 2 Rotten Flesh + 2 Diamond Blocks
• Drinking the Cure Potion removes all infection and restores you to normal

Purified Zombie Heart

• Recipe: 8 Zombie Hearts + 1 Cure Potion (center)
• Eating a Purified Zombie Heart permanently grants +2 extra hearts
• Extra hearts persist through infection, mutation, curing, and death — they are truly permanent
• Stackable and can be used multiple times for even more hearts

The entire crafting system can be enabled or disabled by server owners.

❤️ Permanent Extra Hearts

Players can permanently grow their hearts beyond the default 10 through two sources:

• Purified Zombie Hearts — each one eaten grants +2 permanent hearts
• Mutations — each mutation type can grant a configured number of permanent hearts when a player becomes it (default 30 per mutation)

A master cap limits how many hearts any player can hold: the total (base 10 + all extra) can never exceed the configured maximum (default 30). Once a player is at the cap, extra hearts are not applied and items are not consumed. The cap and both heart settings are fully configurable.

🦠 Player Infection System

• Zombies have a configurable chance to infect players on hit
• Infection builds up over time, displayed as a boss bar
• Golden apples and enchanted golden apples can reduce infection (individually configurable, can be disabled)
• At 100% infection, the player transforms into a zombie with a random mutation
• Infected players gain abilities matching their mutation type
• Infected players are ignored by zombies and can hunt other players
• Use a Cure Potion to fully reverse the transformation and restore your health — all permanent hearts are kept

🛡️ Safezone System

• Create protected areas where zombies cannot spawn or enter
• Each player can own up to 3 safezones (configurable)
• Safezones start with a 10-block radius and can be expanded up to 50 blocks
• Optional border particles to visualize safezone boundaries

🌍 Per-World Configuration

• Configure different zombie behavior for each world (Overworld, Nether, End)
• Per-world settings for mutation rates, spawn rates, damage, speed, and health multipliers
• Enable fire immunity, teleportation abilities, or restrict which mutations can spawn
• Override spawn time modes and zombie caps per world

🎚️ Difficulty Presets

Four built-in difficulty presets that adjust multiple settings at once:

🧠 Advanced Zombie AI

• Memory System — Zombies remember players they've seen and pursue them
• Noise Detection — Sprinting, eating, shooting bows, and placing torches attract nearby zombies
• Pack Behavior — Zombies form groups with leaders that coordinate attacks
• Block Breaking — Zombies can break through doors, fences, and chests to reach players (configurable per-block cooldowns)
• Sunlight Protection — Zombies don't burn in sunlight by default (configurable)

🏗️ Structure Generation

Ruined structures spawn naturally in newly generated chunks, adding atmosphere and loot to explore:

Ruined Hospital Loot:

• Patient Room Barrels — Rotten Flesh (0-4), Cobwebs (0-5), Redstone (0-3)
• Storage Room Barrels — Iron Ingots (0-8), Diamonds (0-3), Mending Book (0-1), Cobwebs (0-8)
• Each possible amount has an equal chance of being selected (including getting 0 of an item)
• Loot is scattered randomly across barrel slots

All structures have configurable spawn chances, biome restrictions, and Y-range.

📦 Custom Resource Pack

• Sends a custom zombie texture pack to players when they join
• Zombies can appear as Zombie, Husk, or Drowned variants, each with its own custom texture
• Optional download prompt and SHA-1 hash caching so returning players only download once
• Players who decline the pack can be kept or removed (configurable)
• The pack can be fully disabled to keep vanilla zombie looks

Commands

Player Commands

Admin Commands (requires zombieapocalypse.admin)

Safezone Commands (requires zombieapocalypse.safezone or zombieapocalypse.admin)

Aliases

• /za → /zombieapocalypse
• /za999 → /zombieapocalypse999

Permissions

Configuration

All gameplay settings live in the plugin's main configuration file and are loaded with /za reload. Default values are shown in parentheses.

General

Difficulty Presets

Each preset (casual, normal, hardcore, nightmare) defines the following values, applied when the preset is active:

• description — Display text for the preset
• mutation_rate_base / mutation_rate_daily_increase — Base and daily growth of the mutation chance
• zombie_base_speed / zombie_base_damage — Starting zombie combat stats
• zombie_max_speed / zombie_max_damage — Hard caps for scaling
• max_zombies_per_chunk / max_zombies_worldwide — Spawn density limits
• bloodmoon_enabled / bloodmoon_frequency — Blood moon toggle and interval
• allow_golden_apple_cure / golden_apple_cure — Whether golden apples cure infection
• infection_chance_on_hit — Infection application chance on zombie hit
• spawn_rate_multiplier — Global spawn pressure multiplier
• zombie_speed_multiplier / zombie_damage_multiplier — Multipliers applied to zombie stats

Zombie Stats

Mutation Rates

Spawning Rules

Blood Moon Events

Mutation System

Per-World Settings

Each world can override global behavior. If a world is not listed, defaults apply. Available options:

• enabled (true) — Whether zombies spawn in this world
• mutation_rate_multiplier (1.0) — Multiplies the base mutation rate
• spawn_rate_multiplier (1.0) — Multiplies zombie spawn frequency
• damage_multiplier (1.0) — Multiplies zombie damage
• speed_multiplier (1.0) — Multiplies zombie speed
• health_multiplier (1.0) — Multiplies zombie health
• fire_immune (false) — Zombies take no fire damage
• can_teleport (false) — Zombies can teleport like Endermen
• teleport_chance (0.1) — Chance to teleport when damaged (if enabled)
• teleport_range (8) — Maximum teleport distance
• enabled_mutations / disabled_mutations (empty) — Restrict which mutations can spawn
• custom_spawn_time_mode (null) — Override the global spawn time mode for this world
• max_zombies_override (null) — Override the global worldwide zombie cap for this world

Safezones

Mutation Types

Each of the 11 mutations (tank, charger, assassin, blight, burster, spitter, frost, shrieker, cryo, inferno, leech) has its own block of settings:

• spawn_chance — Relative weight for this mutation to be chosen (higher = more common)
• health_multiplier / speed_multiplier / damage_multiplier — Stat modifiers
• damage_bonus — Extra attack scaling for fast striker-type mutations
• base_health — Direct base max health override for that mutation
• extra_hearts (30) — Permanent extra hearts granted to a player when they become this mutation (capped by the master heart cap)
• flash_freeze_chance — Chance (%) to apply a cryo freeze burst on hit
• frozen_trail_duration / scorched_earth_duration — Seconds trail effects persist
• shatter_damage — Damage dealt by cryo death shatter
• fireball_cooldown — Seconds between inferno fireball attacks
• meltdown_enabled — If true, inferno death can place lava
• leech_aura_damage / leech_aura_radius — Passive life-steal aura values
• leech_on_hit_heal_multiplier — Percent of dealt damage returned as healing on hit
• death_heal_amount / death_heal_radius — Heal burst amount/radius on leech death
• abilities — Toggle each individual ability on or off

Loot Drops

Each zombie type (normal, tank, charger, assassin, blight, burster, spitter, frost, shrieker, cryo, inferno, leech) has its own loot table:

• enabled — Whether this zombie type drops loot
• detailed_items — Each item entry has a material name and a drop_chance (%) for how often it drops

Advanced AI

Evolution

Infection System

Custom Crafting

Custom Item Drops

Resource Pack

Persistent Data

Structures

Structure spawn chances, biome restrictions, and Y-ranges are configured separately per structure (Ruined House Small, Ruined House Large, Ruined Hospital).

Zombie Mutation Types

Available types for /za spawn: normal, tank, charger, assassin, blight, burster, spitter, frost, shrieker, cryo, inferno, leech

Experience a truly dynamic and evolving zombie apocalypse where every day brings new challenges and stronger threats!