Description
Carcer Bloodmoon Onslaught + Worldfall: Zombie Siege transforms your world into a relentless urban zombie apocalypse centered on two searchable custom biomes—Carcer City (com_carcer_bloodmoon_onslaught_hgv7rtf4:carcer_city) and the new overworld-replacing Worldfall Warzone (com_worldfall_zombie_siege_vaqnlkd4:worldfall_warzone, findable with /locate biome com_worldfall_zombie_siege_vaqnlkd4:worldfall_warzone). These biomes replace terrain with Blood Asphalt or Warzone Asphalt, Rebar Weeds and ruined fortified safe-house/city-rubble structures, and drive a script-controlled apocalypse that converts common mobs into powerful Worldfall Evolved Zombies and spawns dense onslaughts—up to roughly 100 mutated monsters near players—while an action-bar HUD tracks day, blood moon, evolution percent and mutation state. Scavenge ruined safe houses for military loot including a Military Rifle (aimed damage) and Medkit (healing + temporary absorption), start the game with randomized starter supplies and a named safe-house spawn message, and survive escalating blood-moon waves and evolving enemy types as you hunt better gear and shelter (note: the biome includes generic ruined safe-house structures and starter supplies; separate city-themed building variants and a dedicated Military Supply Crate block are not fully added in this release).
Mod Wiki
Worldfall Zombie Siege
Quickstart
- Install the
.mcaddonand start a new world (Survival, any difficulty from Easy to Hard). - On first spawn you receive a starter kit automatically: 1 Military Rifle, 4 Medkits, an iron helmet, an iron chestplate, and 16 bread. A message tells you the name of the safe house you "woke in."
- Run
/locate biome com_worldfall_zombie_siege_vaqnlkd4:worldfall_warzoneto find the Worldfall Warzone biome and head there. - Watch the action bar — it shows the current day, blood moon status, evolution percentage, and mutation tier. Survive as long as you can.
Overview
Worldfall Zombie Siege turns Minecraft into a relentless urban zombie apocalypse. The world generates two custom biomes paved with dark asphalt and littered with ruined safe-house structures. Every common mob you encounter is converted into a Worldfall Evolved Zombie, and the game continuously spawns dense hordes around you. A persistent HUD tracks how dangerous the world is getting, and every fifth night brings a catastrophic Blood Moon onslaught. Your goal is to scavenge military gear, shelter wisely, and outlast an ever-escalating siege.
What It Adds
Biomes
| Biome | Surface Block | How to Find |
|---|---|---|
| Worldfall Warzone | Warzone Asphalt | /locate biome com_worldfall_zombie_siege_vaqnlkd4:worldfall_warzone |
| Carcer City | Blood Asphalt | Present in the world; explore or use /locate biome |
Both biomes feature Rebar Weeds growing from the cracked ground and scattered ruined safe-house structures to scavenge.
Blocks
| Block | Notes |
|---|---|
| Warzone Asphalt | Solid, grey urban paving; mines in ~1.5 s; moderate blast resistance |
| Rebar Weeds | Decorative foliage; breaks instantly; drops itself |
Items
| Item | Description |
|---|---|
| Military Rifle | Ranged weapon — aim and use to fire; deals 12+ damage scaling with the world's evolution level; stacks to 1 |
| Medkit | Use to instantly restore health and gain 45 seconds of Absorption; stacks to 16 |
Entity
Worldfall Evolved Zombie — the primary threat. Replaces all common hostiles and passive mobs. Burns in daylight, can break doors, can climb, and is amphibious. Baby variants are faster. Adults can carry riders. Drops rotten flesh; rare chance to drop an iron ingot, carrot, or potato when killed by a player.
How To Use
Military Rifle
Hold the rifle and use (right-click / tap the use button) while looking at a target up to 48 blocks away. The rifle fires instantly, dealing base damage of 12 plus a bonus that grows as the world's evolution percentage rises. A muffled explosion sound plays on each shot.
Medkit
Hold a Medkit and use it to instantly heal and gain a 45-second Absorption buffer. Each use consumes one Medkit from the stack. Use it before a fight or when critically low on health. Your movement slows slightly during the short use animation (~1 second).
HUD (Action Bar)
The action bar is always visible and shows:
Worldfall Day <N> | BLOOD MOON / no blood moon | Evo <X>% | <MUTATION TIER>
Use this to anticipate danger before stepping outside.
Abilities And Mechanics
Mob Conversion
Any vanilla hostile mob (zombie, skeleton, spider, creeper, enderman, husk, drowned) or passive mob (cow, pig, sheep, chicken, villager) that spawns or exists within ~48 blocks of a player is immediately replaced by a Worldfall Evolved Zombie. There is no safe mob to rely on for resources — even farms will convert.
Onslaught Spawning
Every 5 seconds the game checks how many Evolved Zombies are near each player and spawns up to 8 more at a time, circling 24–48 blocks away. The cap grows with each day:
- Normal days: cap = 10 + (day × 1.5), maximum 55
- Blood Moon nights: cap = 100
Blood Moon (Every 5th Day)
On days 5, 10, 15, 20 … the onslaught cap jumps to 100. The action bar flashes BLOOD MOON in red. Prepare extra Medkits and find defensible terrain before nightfall.
Progression And Strategy
Mutation Tiers
The world grows more dangerous over time. The current mutation tier is always shown on the HUD:
| Days | Tier | Evolution % |
|---|---|---|
| 1 | RISING | 0 |
| 2–14 | RISING | 12–156% |
| 15–19 | SCREAMERS | up to 168% |
| 20–29 | BLOATERS | up to 228% |
| 30–66 | FERALS | ~348–360% |
| 67–98 | MUTATING | 500% |
| 99–499 | SPIKE | 650% |
| 500+ | EXTREME | 999% |
As evolution rises, the Military Rifle's bonus damage also scales (evolution ÷ 120, rounded down), so the weapon remains relevant late-game.
Tips
- Secure the starter kit immediately. You only receive it once per character. Don't waste Medkits on minor scratches early on.
- Find the Warzone fast. The biome has ruined safe-house structures that can contain military loot to supplement your starting gear.
- Use high ground and doorways. Evolved Zombies can break doors given time, but bottlenecking them reduces the number that reach you simultaneously.
- Plan for Blood Moons. Every 5th day is brutal. Spend day 4 scavenging and stocking Medkits.
- Don't hoard Medkits. Each gives Absorption — stacking uses back-to-back refreshes the timer, so burn them freely during big fights.
- Passive mobs convert too. Do not rely on vanilla animals for food; bring bread or raid structures for supplies.
How to install
Download the mod and follow the step-by-step installation guide.
This mod is licensed under the CreativeMode Mods License.