Biomancy is a flesh-themed tech-magic mod for Minecraft that lets players harvest organic materials, grow living flesh creatures, craft biological machines, automate with membranes, and create powerful bio-weapons, armor, and potions. This complete Biomancy guide covers every mechanic, machine, recipe, and progression step — including the Flesh Plunderer, Primordial Cradle, Decomposer, Bio-Forge, Nutrients, Malignant Growth, Essences, Injectors, and more. Perfect for Minecraft 1.18–1.21. Learn how to master Biomancy and turn meat into power.

Biomancy Progression Summary

1. Craft Flesh Plunderer
2. Kill mobs → gather bile, sinew, claws, fangs
3. Craft Primordial Cradle
4. Create Flesh Blobs → harvest Living Flesh
5. Craft Bio-Forge
6. Craft Decomposer, Digestor, Biolab, etc.
7. Break down items → gather components
8. Power machines with nutrients
9. Create armor, weapons, membranes, potions
10. Optional: Feed rotten flesh for malignant growth

By this point, you’ll have access to every system in Biomancy.

Prefer a video Explanation? Click here -

Part 1. Getting Started With Biomancy

The very first tool you need is the Flesh Plunderer.

How to Craft the Flesh Plunderer

You’ll need:

• Any type of raw meat
• Bones
• 1 Primordial Core

How to Craft a Primordial Core

Combine:

• Raw beef
• Raw porkchop
• Raw chicken
• Raw mutton
• Rotten flesh
• A spider eye
• An ender pearl

All extremely early-game friendly.

⭐ Harvesting Biological Materials

Now equip your Flesh Plunderer and kill mobs with that weapon specifically. It drops different organic components depending on mob type:

Farm Animals Drop:

• Sinew
• Bile glands (rare)

Predators Drop:

• Sharp fangs
• Sharp claws

Predators include wolves, cats, foxes, bats, hoglins, etc.

Farm animals = bile & sinew

Predators = claws & fangs

You’ll need a good supply of both.

⭐ The Primordial Cradle — Your First Biomancy Machine

Now it’s time to build your first horrifying machine:

Primordial Cradle Recipe

• Raw meat
• 2 Sharp fangs
• 1 Primordial core

Place it down.

It starts empty.

How to Use the Cradle

1. Feed it raw meat → it fills the internal bar
2. Feed it a Potion of Healing

The eye lights up… bubbles rise…

and…

You get a FLESH BLOB.

⭐ Flesh Blobs — Growing and Harvesting

Flesh blobs are living, growing creatures.

• Feed them raw meat to grow
• They will actively hunt nearby animals
• They keep expanding in size
• The larger they get, the more they drop

Killing Blobs Gives:

• Living Flesh

This is critical because it unlocks Biomancy’s main crafting path.

You can kill blobs with any weapon, but using the Flesh Plunderer keeps everything consistent.

⭐ The Bio-Forge — Your Main Crafting Machine

Once you’ve harvested Living Flesh, you can craft the most important workstation in the mod:

Bio-Forge Recipe

• Living Flesh
• Sharp claws
• Slime balls
• Raw meat

Place it and you’ll see a complex interface.

How the Bio-Forge Works

• Recipes are listed on the left
• Each recipe requires specific organic ingredients
• And Nutrients (top-left bar)

How to Get Nutrients

Just insert raw meat.

1 raw porkchop = 32 nutrients (varies by item)

A stack typically gives 512+ nutrients

This powers ALL Biomancy machines.

⭐ The Decomposer — Your Resource Generator

Most Biomancy items require things like:

• Elastic fibers
• Flesh bits
• Bone fragments
• Exotic dust
• Biotic matter

The Decomposer is how you get them.

Decomposer Recipe

• Living flesh
• Sharp fangs
• 1 Bile gland

How It Works

Place an item → it consumes nutrients → outputs organic components.

Examples:

• Sugar cane → Biotic Matter
• Amethyst Shard → Gem Fragments
• Golden Apple → Mineral Fragments / Regenerative Fluid
• Rotten flesh → Flesh bits

The Decomposer is essential for progression.

⭐ Malignant Flesh Growth (Rotten Flesh Variant)

If you feed the Cradle rotten flesh instead of raw meat…

…it creates malignant growth instead of blobs.

This includes:

• Primal membranes
• Primal orifices (filled with acid)
• Bloom nodes that fire spreading berries
• Flesh veining that slowly expands

You can:

• Collect Gastric Acid
• Harvest Bloom Berries
• Grind components in the Decomposer

Standing in the acid → armor shredding & corrosive damage.

So watch your step.

⭐ Weapons, Tools & Gear

Once you have the Bio-Forge running, you can craft a variety of powerful biomantic gear.

1. Caustic Gunblade

• Fires acid projectiles
• Can apply acid coating (press V to switch modes)
• Rechargeable using nutrient paste

2. Acolyte Armor

Grants:

• Resistance to harmful effects
• Less hostility from Primordial Cradle mobs
• Injection resistance

Charge the armor by using Nutrient Bars on it.

⭐ The Digestor — Making Nutrient Bars & Fuel

Digestor Recipe

Crafted inside the Bio-Forge.

What It Does

• Insert RAW food → it digests into Nutrient Paste
• Combine 9 paste → Nutrient Bar

Uses:

• Repairs biomancy weapons
• Charges biomancy armor
• Powers machines

⭐ Essences & Membranes

The Essence Extractor lets you siphon essence from mobs.

You can then combine essence + biometric membrane to create special barriers:

Types of Membranes

• Mob-type membrane (only that mob passes)
• Primal (only living pass)
• Undead (only undead pass)
• Baby (only babies pass)
• Adult (only adults pass)

This is huge for farms and automation.

⭐ Biolab — Organic Potions & Injectables

The Biolab is where you brew Biomancy’s custom “potions”.

How It Works

• Insert nutrients
• Insert compounds (from Decomposer)
• Craft potions like:
• Insomnia Cure
• Regenerative compounds
• Hardening agents

These are NOT drinkable.

You need:

Bio-Injector

Press V to select the serum

• Shift-right-click → inject yourself
• Right-click → inject mobs

⭐ Other Useful Biomancy Items

Bio-Alchemical Fertilizer

Better than bone meal.

Chrysalis

Stores blobs/babies safely.

Flesh Doors, Ladders, Plates

Biomancy has incredible decorative horror blocks.

Maw Hopper

A biological hopper that:

• Stores items
• Acts as a pipe system
• Extends item flow much further than vanilla

One of the coolest utility blocks in the entire mod.