Bioferrite is the fun new material introduced in Rimworld's Anomaly DLC. Almost everything is made of it, spread across new ♏monsters, powerful weapons, and exotic technologies. Gathering the exotic resource can be a challenge until you have a handle on the DLCs new mechanics

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If you want to kit out your people with the new incendiary weapons, power your base with the new fuel sourceꦑ, or keep your research subjects well-contained, you'll need to produce lots of bioferrite. This guide will explain where to get your first dose, and how to snowball that into a more sustainable amount.

What Is Bioferrite Used For

Bioferrite is made from Latin and Greek words. It stands for "biological" (living) and "ferrous" (iron). It's also psychic in nature, but splicing three words together would 🐼get a bit messy.

All these myriad uses add up to being rather expensive. The lump sum of bioferrite given by the Anomaly starting Scenario is a head start but not enough to m🐈atch your eventual needs when the higher-level entities begin appearing.

Where To Get Bioferrite

Bioferrite is unlocked with the Anomalous research Bioferrite Harvesting. The anomalous research panel is only unlocked after you have activated the Fallen Monolith, enabling Entities from the DLC to attack y꧂our colony more frequently.

They can still𓆏 appear in small quantities without activating the Monolith, but you𓂃'll be unable to research them or extract bioferrite.

Once you have the Bioferrite Harvesting research, you can build a Harvester. This requires a live anomalous entity to leech the material from. Build a prison room containing a Holding Spot and a Bioferrite Harvester. A captive entity pla🉐ced in the holding spot will begin producing🃏 bioferrite, typically at a rate of one or two units per day.

The early game entities that are easiest to capture are Sightstealers and Shamblers. They'll also provide yℱou with basic research to get 🐼access to more technologies that use bioferrite.

The Anomaly starting scenario gives you a lump sum of bioferrite to get you started, but requires you to activate t💞he monolith mu💞ch earlier than other starting scenarios.

How To Mass Produce Bioferrite

The first contained Sightstealer or Shambler will give you a rather weak trickle of bioferrite. To collect more you need to progress further, expanding your prison to contain more and stronger entities.

Bioferrite production scales from two factors. The first is the size of the creature. Big e🌺ntities like Devourers and Nociospheres p🌌roduce large amounts.

The other factor is called bioferrite density. This one you'll need to inspect the creature types to discover, but is also somewhat intuitive: The metalblood horrors, despite being the size of a ✅person, are 𒀰composed almost entirely of bioferrite so you can harvest more out of them. They give a healthy four units per day but are also among the hardest to contain.

Creatures with higher density and bigger size are also harder to capture and contain. Steel holding plates, plasteel security doors, and stone walls are enough to contain most creatures for a long time𒈔, even if you make them share a room for cheaper extraction.

A high-throughput bioferrite farm can go in two directions.

Large-Scale Bioferrite Farming

This approach centers around capturing and harvesting weak entities in large numbers. Shamblers and Sightstealers will functionally never break free from a strong🔯 prison and they need no wardening to be contained. If they do attempt a prison break (roughly twice a decade), you should have no problems either killinꦬg or recontaining them.

Expanding the farm or replacing dead entities is a simple process of using the Draw Shamblers Psychic Ritual. This will summon a decent-sized group of fresh Shamblers for you to contain. Draw Fleshbeasts is an alternative ritual with variable results: Larger fleshbeasts giv﷽e better amounts of bioferrite but are harder to catch and hold onto.

The Toughspike is a good middle ground, giving more bioferrite than Shamblers but not posing 𒆙ওany significant risk.

The downside is this takes a lot of space and construction materials. You'll need a large base with the priไson towards the middle so sappers don't dig into your prison.

This will also give you plenty of basic research, as the stꦑudy cooldown is tracked p🎶er creature and not by creature type.

High-Density Bioferrite Farming

The opposite approach is to go for high-value targets. These require strong contain♐ment cells, potentially needing you to invest some of your bioferrite into floor plating.

Unlike the low-density farm, you don't need to reinvest your bioferrite into rituals to summon more creatures. Higher-level creatures can be captured as they appear naturally or summoned for free with the Void Provocation ritual.

You'll want a supply of existing bioferrite equipment♐, most n𝔉otably Proximity Detectors and Disruptor Flare packs: Advanced entities make frequent use of invisibility and darkness.

An effective way of capturing high-density targets without killing them is with psychic shock lances. The Anomaly DLC lets you craft these with bioferrite and shards — previously they෴ could only be found in Ancient Dangers and quest rewards.

The Nociosphere advanced anomaly can be contained without risk but damages the mood of nearby pawns and must evenꦕtually be released or it will turn hostile. Treat it as a special windfall rather than a regular source of bioferrite.

Injured entities will have their escape chance reduced. You can do thi🤡s by incapacitating them with weapons that don't cause a lot of bleeding and then denying them medical treatment.