Guide to xenobiology

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Xenobiology is the breeding and harvesting of slimes and their extracts for scientific purposes. This all takes place in the xenobiology lab where you spawn, and is arguably more dangerous than making bombs if you don't know what you are doing. Which is a good reason to read this!

Home on the Range

Xenobiology on Boxstation

As a Xenobiologist, you’re not going to get out that much until some late game slimes. And until you get those, you won't be bothered much either, at least in theory.

So let's get familiar with your new home. As an example, this is what the xenobio lab looks like on Boxstation.

The workplace in the center includes a couple of closets with bio-hazard suits, a monkey recycling machine, a slime processor, and an All-In-One Grinder with several sheets of plasma. Also included is a smartfridge modified to hold slime extracts within easy arm reach from the slime processor. There is also a wrench, which can unanchor all the machinery, so you can reorganize your workspace. To the western end is a disposal unit that leads to space and right of this is the bread and butter of your job: The Slime Console, which will be covered later.

To the south is the slime containment area with six pens. Two (or three on some maps) of these pens start with a baby grey slime.

To the north is a special containment pen that's larger and more secure than the rest. This is ideal for containing and experimenting on other alien lifeforms should the station manage to capture/produce one. Usually though, it's just for storing extra slimes.

Using the slime console

The Slime Console is a semi-new addition to the Xenobiology scene that makes your job roughly a hundred million times easier. With it you can move slimes, kill them, feed them, and process dead monkeys with mere clicks of a button! It's strongly advised to grab the wrench next to the shield projectors and move the fridge and slime processor within close range of the console you're using to cut out a lot of unnecessary movement.

Safety Advice

Before you start breeding slimes, you may want a fire extinguisher in your backpack. You'll rarely meet a ravenous, hungry slime if you're using the console, but it still happens and having an extinguisher could very well be the difference between a dead slime and a dead you.

If you aren't, then this goes doubly so as you'll be near a lot of slimes, usually before you cull their numbers, and while they're normally docile towards you whom are effectively their God, they occasionally grow resentful for their species' exploitation and try to kill you for no particular reason. In that case, kill the blasphemers with a clear conscience, DEUS VULT!

Now that monkeys have regained some sentience, they'll attack you if you try to manhandle them. It's strongly advised to just use the console to avoid any contact, but otherwise keep an extinguisher to bash riled up monkeys, or have a buddy to help you out if you get assaulted.

Don't be the guy who tries to harmbaton a slime outbreak.

Breeding slimes


Insert the monkey cubes from the boxes into the console. The console can now teleport monkeys directly inside the slime pens! Slimes need one monkey to become an adult and another to split.

  • You can send both monkeys at once into a baby slime's pen, so you don't have to think about it until they split.
  • Do NOT enter the pen and bash the monkey, the only thing that will happen is the slime will get less food.

Once they're fed enough, after a while the adult slime will split into 4 baby slimes.


Time to kill your darlings.

Decide which baby slimes you don't want to keep and proceed to warp them up with the console. It can hold up to 5 slimes at a time. Teleport them onto the kill pen; it's the one with the blue floor, connected to a freezer. The sharp cold will kill the slimes quickly: when they stop moving, they're dead and you can pick them up for the next step.


Collect the dead slimes from the freezer room, and drop them within one tile of the slime grinder. It will automatically suck in the slimes; when it's done, activate it to grind them. It will, after a while, drop a slime core of the respective color for each slime grinded.

  • Upgrading the grinder will make it go faster and give more cores per slime.
  • Bio bag.png A Bio Bag from any biohazard locker can mass-collect slime cores and easily drop them into the fridge for easy access.

Resource Management

Monkey Cubes

Monkey cubes are the basic material that you'll need to do xenobiology; without those all you can do is sacrifice intruders ask for another department's monkeys. How do you gain more monkey cubes?

  • You start with two monkey cube boxes containing 5 each, for a total of 10.
  • The first method you'll use to get more cubes is the Grey Slime blood reaction. It will spawn three monkey cubes per extract.
    • Grab a dead monkey from a pen, after a slime has finished eating it.
    • Draw blood from the dead monkey with a syringe. Inject it into a beaker.
    • Use a dropper set to 1u to inject the blood into the grey extracts. More than that is a waste.
  • After the first few splits, you should aim to create and use either a reproductive grey or an industrial grey crossbreed.
  • Upgrades are important, make sure to get them early.
    • With an unupgraded slime grinder a baby grey slime will give 3 cubes.
    • Upgrading a slime grinder to T3 parts, which can be achieved after researching high-efficiency parts, will raise that amount to 9.
  • Bio bag.png Bio bags can store monkey cubes and load the console with them in two simple clicks, so don't waste time putting them in one by one.
  • Recycling a monkey with the console yields 0.2 monkey cubes without upgrades.
    • If you upgrade the Monkey Recycler, you will get up to 0.8 cubes per monkey with both the recycler and the consoles.


Plasma is the most common chemical required to react with slime extracts. You start with 2-4 bars depending on the map, which you can grind for 20 liquid form plasma each (usually simply called "plasma").

  • You require a dropper or syringe to inject chems into extracts. A dropper can be activated in hand to toggle it to 1u.
  • Most reactions only require 1u of plasma for full effect.
  • You can produce new plasma yourself with either metal or dark purple slimes. These will create metal respectively plasteel and plasma bars.
    • Plasteel bars give 20 iron and 20 plasma each when ground.
    • Pure plasma gives 20 plasma per bar.
    • Making these reactions requires some plasma to start with, so be careful not to run out before making more bars.
  • In case you run out, you can either get more from mining, the Testing Lab or the Experimental Lab if the extra plasma bar is still there, or you can ask Chemistry or Engineering to give you theirs.

Friendship and Slimes

If you've been following the guide and diligently breeding and culling the slimes, you may have noticed that while the slimes very quickly attack and eat the monkeys you offer them, they have little to no interest in eating you. This is because you've become their "friend", a status that can be earned by simply being the one sending them monkeys. To check if slimes are friendly, say "Hello slimes"; all the slimes that consider you their friend will say hello.

Commanding Slimes

There are some commands you can issue as a slime's friend. Keep in mind however, these commands are exceedingly finicky, and are rarely used for a reason. Slimes will not attack other slimes or friends.
Each command requires you to include the word "slimes" somewhere in the sentence. List of commands:

  • Hello/hi slimes: Makes the slimes greet you if you are their friend.
  • Follow slimes: Asks the slimes follow you.
  • Stay slimes: Asks the slimes to stay where they are for a while.
  • Stop slimes: Asks the slimes stop chasing if chasing a target, stop feeding if feeding, or stop following you if they're following. If they don't like you enough, asking them to stop feeding or chasing can upset them and make them like you less. If this happens they'll say "Grrr...".
  • Attack (exact target name) slimes: Asks the slimes to chase the target to feed on it. They'll be faster while chasing. Asking them to attack a friend of theirs can upset them.

Defending against slimes

So either by you not feeding the slime enough, the slime being a dick, or reasons, a slime has tried to kill you. If the slime is a baby, this is annoying. If the slime is an adult, you may die if you don't know what you're doing.

Slimes have two attacks: A glomp that does brute damage with adults dealing more and a chance to stun, and the far more dangerous 'feeding' attack which deals cellular damage and empowers the slime, a rare and very difficult to heal type of damage. If a slime starts feeding on you, wrestle it off with disarm intent and spray it down with an extinguisher (You DID get an extinguisher, right?) until it dies. After that, hobble off to medbay for healing.

While this is generally more a tip for you when NOT playing Xenobiologist, in the event of a very rare slime outbreak, perhaps of sentient slimes, get an extinguisher and hide. A horde of angry slimes can multiply fast, and while slimes are normally unintelligent and docile, outbreaks of them are nearly always done on purpose by someone wanting to destroy the station, and are thus paired with usage of red extracts enraging slimes and/or light pink or black extracts making very deadly intelligent slimes. Pray that the AI is able to stop them, and that the xenobiologist who released the slimes doesn't follow up with something worse.

Slime Mutations

There are several a fuckload of different flavors of slime. You begin with two or three grey slimes but you can breed them to catch all the pokèmon! slimes! Each kind of slime has its own powers from its extract.

Every time a slime splits by being fed enough, it has a chance to mutate based on its individual mutation chance, a stat discovered by taking a slime scanner from the fridge and using it on the slime. It usually varies between 25% and 45%, but sometimes you will encounter slimes whose mutation chance is more like 15% to 20%. Choose carefully which slimes to keep! If you're breeding greys for monkeys, you'll want a lower chance of mutations, and if you want to get adamantines, you might want to increase it!

NOTE: You can increase a slime's chance of mutation by injecting it with slime mutation potions from red slimes and decrease it with slime stability potions from blue slimes.

This flowchart shows the results of each slime's mutations when splitting, with options labeled "2x" having twice the chance of occurring.

Slime geneology2.png


Most reactions only require one unit of reagent for full effect. Dropper is your friend. There are exceptions though. Some reactions will create a liquid reagent inside the extract when injected once, and then deplete that extract. In those cases, using a higher volume syringe to inject will result in more units per extract. You must then draw from the core to get the resulting chem. Examples: The mutation toxins from green extracts.

You can also dilute your plasma by, for example, filling a beaker with 40u of water and 10u of plasma; a syringe will collect exactly one unit of plasma this way.

  • (c) means the ability needs to be channeled to work (aka you need to stand still for a while).

Tier 0

Grey Slime Slimegrey.png

  • Extract creates a grey slime when injected with plasma. Useful as a backup grey slime.
  • Extract creates three monkey-cubes when injected with blood. Useful if you want to do your job for more than five minutes.
  • Extract gets filled with Epinephrine when injected with water.

Luminescent Effects

  • Minor: Spawns a monkey cube into the user's hand.
  • Major: Spawns a grey baby slime.

Tier 1

Orange Slime Slimeorange.png

  • Extract creates a small plasma fire after 5 seconds when injected with plasma.
  • Extract gets filled with Capsaicin Oil when injected with blood. 10u per 1u blood injected at once, up to 100u. Can be turned into Pepper Spray if mixed with ethanol.
  • Extract creates a cloud of smoke when injected with at least 5u water. More water injected at once means bigger smoke, up to max 15 water. It'll carry any other reagent already inside the slime extract.

Luminescent Effects

  • Minor: Infuses you with capsaicin.
  • Major: Spawns smoke around the user. The smoke will purge chemicals in the user's body and infuse itself with them.

Purple Slime Slimepurple.png

  • Extract creates a bottle of slime steroid when injected with plasma. Slime steroid is a potent chemical mix that will cause a slime to produce one more extract when processed, for a maximum of four extra. The steroid only works on live slimes.
  • Extract gets filled with regenerative jelly when injected with blood. 5u per 1u blood injected, up to 100u. Similar to omnizine, but non toxic to jellypeople.

Luminescent Effects

  • Minor: Restores blood volume and nutrition.
  • Major: Gives some regenerative jelly, healing the user.

Blue Slime Slimeblue.png

  • Extract gets filled with frost oil when injected with plasma. 10u per 1u plasma injected, up to 100u.
  • Extract creates a slime stabilizer potion when injected with blood. Reduces a slime's mutation chance by 15 percentage points, and carries through across generations.
  • Extract creates foam when injected with at least 5u water. It'll carry any other reagent already inside the slime extract.

Luminescent Effects

  • Minor: Cures cellular damage, purges the dna, and reduces radiation on the user.
  • Major: Creates foam from the user, infusing itself with the chemicals in the user's body.

Metal Slime Slimemetal.png

  • Extract creates 5 sheets of plasteel and 15 sheets of metal when injected with plasma. Grinding plasteel will generate plasma and iron, making it a perfect substitute to dark purple slimes.
  • Extract creates 5 sheets of reinforced glass and 15 sheets of glass when injected with water.

Luminescent Effects

  • Minor: Creates 5 sheets of glass in the user's hand.
  • Major: Creates 5 sheets of metal in the user's hand.

Tier 2

Yellow Slime Slimeyellow.png

  • Extracts become 5k Charge Powercells when injected with plasma. These cells are self-charging, and very useful for cyborgs or APCs, for example. Valuable for R&D.
  • Extract creates an EMP when injected with blood. It's a quite big blast as well, useful if that AI is onto your tricks.
  • Extracts emit light when injected with water. They can be squeezed to increase the light emitted.

Luminescent Effects

  • Minor: Temporarily increases the user's light range and intensity.
  • Major: Emits a short-ranged EMP.

Dark Purple Slime Slimedarkpurple.png

  • Extract creates 3 sheets of Solid Plasma when injected with plasma. Yessir, NT can link anything to the production of plasma. Also useful for further experimenting.

Luminescent Effects

  • Minor: Spawns a plasma bar in the user's hand.
  • Major: Spawns a cloud of plasma around the user.

Dark Blue Slime Slimedarkblue.png

  • Extract creates supercooled N2 gas 5 seconds after injected with plasma.
  • Extract creates a three-use chill potion when injected with water, which fireproofs anything it's used on. Be a firebug without looking like one! Miners can make good use of this, as it will make them storm-proof.

Luminescent Effects

  • Minor: Infuses the user with frost oil and Cryoxadone.
  • Major: Spawns extremely cold air around the user.

Silver Slime Slimesilver.png

  • Extract creates a random food when injected with plasma, bork bork bork. Expect anything except a roburger and gatfruit.
  • Extract creates a random drinks when injected with water, bork bork bork.

Luminescent Effects

  • Minor: Spawns a random food in the user's hand.
  • Major: Spawns a random drink in the user's hand.

Tier 2.5

Bluespace Slime Slimebluespace.png

  • Extract will, if injected with plasma, spawn a Bluespace Crystal. They will teleport you when crushed in your hand and teleport anyone you throw it at. Used as a material in techfabs and protolathes.
  • Extract will, if injected with blood, create 25 Bluespace Floor Tiles, which speed up movement drastically.
  • Extract will, if injected with water, spawn a Bluespace radio potion. Use it on a sentient animal to let them speak on the radio!

Luminescent Effects

  • Minor: Randomly teleports the user a few tiles away.
  • Major: Saves the user's position on the first use. On the second use, it will warp the user back on that position. The extract can change user in the meantime.

Sepia Slime Slimesepia.png

  • Extract stops local time for 15 seconds, 5 seconds after injected with plasma. The user is not immune.
  • Extract creates some Film and a Camera when injected with water.
  • Extract creates 25 Sepia Floor Tiles when injected with blood. They slow movement speed above them.

Luminescent Effects

  • Minor: Spawns a camera in the user's hand.
  • Major: Stops time for a few seconds around the user. (c)

Cerulean Slime Slimecerculean.png

  • Extract creates a bottle of extract enhancer when injected with plasma. When used on an extract it adds one use to it.
  • Extract creates a one-use blueprint when injected with blood. Renaming an area with it (to any name) will turn the floor blue and allow the Slime Console to work on that area, if it has a valid path.

Luminescent Effects

  • Minor: Infuses the user with salbutamol, making them able to survive without air for some time.
  • Major: Spawns a large amount of breathable air around the user.

Pyrite Slime Slimepyrite.png

  • Extract creates a can of paint when injected with plasma. For the love of all that is holy, don't give it to the clown!
  • Extract creates a random crayon when injected with blood.

Luminescent Effects

  • Minor: Spawns a crayon in the user's hand.
  • Major: Spawns a spraycan in the user's hand.

Tier 3

Red Slime Slimered.png

  • Extract creates a bottle of slime mutation potion when injected with plasma. Makes slimes 12 percentage points more likely to mutate, the opposite of the slime stabilizer.
  • Extract makes nearby slimes rabid when injected with blood. Has some fun uses. If the affected slimes were docile, it removes the docility instead of making them rabid.
  • Extract creates a bottle of speed potion when injected with water. The speed potion will halve the slowdown from any item of clothing or vehicle it is applied to.

Luminescent Effects

  • Minor: Infuses the user with Ephedrine, greatly increasing their speed temporarily, while causing side effects such as making you drop held items.
  • Major: Enrages slimes around the user.

Green Slime Slimegreen.png

  • Extract gets filled with imperfect mutation toxin when injected with plasma. 5u per 1u plasma injected. Having at least 4u in your system will eventually turn you into a random jellyperson. They have several pros and cons, but what is important to xenobiology is that slimes will never attack you and your blood is no longer valid for blood-based reactions, as it is replaced by slime jelly. Ingesting more slime mutation toxin when you're already a jellyperson will turn you into another random subspecies.
  • Injecting the extract with radium fills it with unstable mutation toxin which trough the help of chemistry can let you make various mutation toxins that turn you into various races.

Luminescent Effects

  • Minor: Turns the user back into a human.
  • Major: Turns the user into another slime subspecies.

Pink Slime Slimepink.png

  • Extract creates a bottle of docility potion when injected with plasma, which will nullify a slime's hunger, causing it to become docile and tame, and will let you name it. You too can have your own pet, just like the HoP! If the slime is rabid, the potion will remove its rabid rage but will not make it docile.
  • Extract creates a bottle of gender changing potion when injected with blood, which changes the gender of any living, gendered thing it is used on.

Luminescent Effects

  • Minor: Switches the user's gender.
  • Major: Temporarily pacifies creatures around the user, making them nonviolent for some time.

Gold Slime Slimegold.png

  • Extract spawns five random dangerous hostile mobs when injected with plasma.
  • Extract spawns three random dangerous mobs when injected with blood. These mobs are not immediately hostile, but may be provoked by certain actions, proximity to other creatures (such as your slimes) or if they encounter a construct or mech. You can also spawn magicarps!
  • Extract spawns one random friendly critter when injected with water. Now you can fill xenobiology with mobs even if you're a giant pussy!

See here for the list of summonable mobs.

Luminescent Effects

  • Minor: Spawns a friendly mob. (c)
  • Major: Spawns a dangerous mob. If the user is on harm intent at the moment of use, the mob will be hostile. (c)

Tier 4

Oil Slime Slimeoil.png

  • Extract creates an explosion after a moment when injected with plasma.
  • Extract gets filled with Corn Oil when injected with blood. About 10u per 1u blood injected.

Luminescent Effects

  • Minor: User vomits slippery oil.
  • Major: User violently explodes. (c)

Black Slime Slimeblack.png

  • Extract gets filled with advanced mutation toxin when injected with plasma. 1u per 1u plasma injected. Turns you, or others, into a sentient grey baby slime. Beware, slimes are still not harmless. This mutation can be prevented with frost oil, if you are quick enough. Acts instantly on slimepeople.
  • Advanced mutation toxin can be used to make toxins that turn you into some more powerful mutation toxins.

Luminescent Effects

  • Minor: Turns the user into a slime. (c)
  • Major: Turns the user into a shadowperson. (c)

Light Pink Slime Slimelightpink.png

  • Extract creates a bottle of sentience potion when injected with plasma, a potent chemical mix that will bring human level intelligence to any animal, slime, monster or generally active thing you feed it to. Make Ian sentient! Create an army of gold slime minions! The possibilities are limited only by your own deviousness and the number of ghosts in the round.
  • Extract creates a bottle of renaming potion when injected with water which let a lets a creature rename itself.

Luminescent Effects

  • Minor: Spawns a renaming potion, which offers anyone it's used on the option to choose(write) any new name.
  • Major: Spawns a sentience potion.

Adamantine Slime Slimeadamantine.png

  • Extract creates an adamantine bar when injected with Plasma. It can be sold at cargo for a high amount of credits, or 25 adamantine can be used inhand to craft a golem shell. Golem shells can then be finished with ten sheets of any material, which will affect the golem's properties. After completion, a ghost can possess the shell to spawn as a golem. It will follow the orders of who finishes the shell above anything else, and inherit conversion antagonist status, such as cult, from their owner.

Luminescent Effects

  • Minor: Temporarily increases the user's armor, reducing overall damage taken.
  • Major: Turns the user into an adamantine golem. (c)

Special Slimes

Rainbow Slime Rainbow slime.gif To attain this rare slime you must breed a slime with a 100% mutation chance!

  • Extract will spawn a random slime when injected with less than five units of plasma.
  • Extract will explode into randomly-colored slime cores when injected with at least five units of plasma.
  • Extract will explode into randomly-colored slime cores with water, plasma, and blood in them when injected with slime jelly. This will trigger their reactions unpredictably and chaotically, and almost certainly cause mayhem wherever it happens.
  • Extract will generate a mind transference potion when injected with blood. You can use it to transfer your mind into a creature. This is not reversible and will result in your old body's instant death.
  • Extract will spawn a flight potion when injected with 5u of Holy water and 5u Uranium.

Luminescent Effects

  • Minor: Changes the user's color randomly.
  • Major: Spawns a random slime core.


Slimes can be crossbred with other slimes! In order to crossbreed a slime, feed an adult slime 10 of any color extract. If you give one extract to an adult slime, you can then use your Bio Bag Bio bag.png to feed the last 9. This will cause the slime to boil away into nothing more than a single, extremely powerful extract, with a unique effect depending on the color you fed it. For example, feeding 10 grey extracts to a yellow slime will result in a reproductive yellow extract. The color of the 10 extracts you feed is the dominant color.

Crossbreeding Chart

Other charts to be used as a reference in crossbreeding slimes can be found here, and here, albeit in different formats than the form used below. For the design document containing planned additions, see here.

Dominant Extract: GreySlimegrey.png (Reproductive Reproductive.gif)

Reproductive extracts are a sort of condensed version of normal Xenobiology.

They can be fed 3 Monkey Cubes either by hand or with a biobag, and then they produce a baby slime of their color!

If you're making a lot of crossbreeds of one type, making these is really convenient.

Dominant Extract: OrangeSlimeorange.png (Burning Burning.gif)

Burning extracts are similar to normal extracts, but are primarily offensive in nature.

In order to activate one, you must fill it with 10u liquid plasma (gotten from grinding plasma sheets), and then activate/click it in your hand.

  • Grey - Produces a hungry, faster slime that will follow your orders.
  • Orange - Makes a burst of pepper spray smoke. Careful, or you'll also be affected.
  • Purple - Creates a clump of invigorating gel (works like an autoinjector) containing 30u regenerative jelly and 9u methamphetamine.
  • Blue - Briefly freezes the flooring in a large radius, and decreases the body temperature of everyone in that radius but the user.
  • Metal - Instantly destroys walls that are next to the user.
  • Yellow - Electrocutes nearby creatures, except the user. 25 damage, 4 range.
  • Dark Purple - Makes a burst of plasma gas.
  • Dark Blue - Creates a puff of smoke containing 30u frost oil, freezing everything touched by it. Gives the user 10u cryoxadone, as well!
  • Bluespace - Teleports anyone directly next to you as if they were hit by a bluespace crystal.
  • Silver - Spawns some foods that have 5u slime jelly in them. Only half of the foods have a tell for it ("It smells strange..."), until eaten. Highly poisonous to non-slimepeople.
  • Sepia - Creates a rewind camera. The camera can take a picture of a target, who will then rewind to the original spot and health status 10 seconds later, twice in a row. Limbs lost those 10 seconds re-attach, and new ones fall off. Can not revive someone from death. This can heal simple animals and objects.
  • Cerulean - Creates an extract duplication potion, which copies a normal extract, as well as its extra uses.
  • Pyrite - Overloads and shatters all lights in the room, as if the lighting was overridden in the APC.
  • Red - Makes nearby slimes rabid, and they'll also attack their friends.
  • Green - You grow a lower damage armblade (15 brute) from the hand you used the extract in.
  • Pink - Makes a small beaker with 5 units of synthpax in it, for manual application.
  • Gold - Creates 3 hostile creatures that will not attack the user.
  • Oil - 5 seconds after activation it causes a heavy explosion on living things adjacent to it, but deals no damage to environment.
  • Black - Temporarily transforms you into a slime, with the ability to transform back at will once. You do not lose or drop your worn items.
  • Light Pink - Gives everyone in sight 5 units of Pax, bringing combat to a sudden halt.
  • Adamantine - Creates an Adamantine Shield, a large shield that blocks most attacks, but makes you much slower, and takes both hands. Deals 15 brute.
  • Rainbow - Creates the Rainbow Knife, a transparent, rainbow-glowing kitchen knife that does 15 of a completely random type of damage per attack.

Dominant Extract: PurpleSlimepurple.png (Regenerative Regenerative.gif)

Regenerative extracts will instantly heal 50 brute, burn, toxin, and stamina damage on whoever they are used on. Does not restore lost limbs.

In addition, they also provide a different effect depending on the color.

  • Grey - Has no additional effect - simply fully heals the target.
  • Orange - Makes a 3x3 ring of fire around the target for only a moment, which does not harm them.
  • Purple - Also supplies 10u regenerative jelly, keeping the target healed for a bit afterward.
  • Blue - Wets the floor below the target.
  • Metal - Encases the target in a locker, though it is not welded.
  • Yellow - Recharges a random, battery-equipped device on the target person to full.
  • Dark Purple - Provides a set of purple clothing to the target if any clothing is missing. Useful for cloning!
  • Dark Blue - Fireproofs the target's exosuit and helmet, if available.
  • Silver - Feeds the target more than fully healing normally does.
  • Bluespace - Teleports the target to where the extract was created.
  • Sepia - Causes a deja vu effect before being healed. The location and health status of the target are saved, and they'll rewind to that spot and health status 10 seconds later. Limbs lost those 10 seconds re-attach, and new ones fall off. Can not revive someone from death. This can heal simple animals and objects.
  • Cerulean - Spawns a secondary regenerative core without special effects.
  • Pyrite - Randomly colors the target, as if they ate a crayon.
  • Red - Adds 3u Ephedrine to the target, speeding them up slightly.
  • Green - If used on a slimeperson or a xenobio slime, they change subspecies or color, respectively.
  • Pink - Gives 4u Krokodil afterwards, to make the person a bit happier.
  • Gold - Produces a random coin!
  • Oil - Flashes everyone in sight when used, like a flashbang without the bang.
  • Black - Spawns a duplicate of the target, who immediately drops dead. Fake your own death!
  • Light Pink - If used on another person it also heals the person holding it.
  • Adamantine - Boosts the target's armor for 30 seconds.
  • Rainbow - Temporarily makes the target immortal for 10 seconds, but also pacifistic.

Dominant Extract: BlueSlimeblue.png (Stabilized Stabilized.gif)

Stabilized extracts do not require any reagents or special activation technique.

Instead, they provide a unique, passive effect to whoever holds them, as long as it is on their person or in their backpack. They don't work if in a box in a backpack. Having multiple of any of these does not stack.

  • Grey - Automatically makes slimes friends with you if you are next to them, making it safe to interact with them.
  • Orange - Passively tries to increase or reduce your body temperature to a normal level.
  • Purple - Provides a slow regeneration effect.
  • Blue - Makes you immune to slipping on water, soap or foam. Space lube and ice such as from frost oil are still too slippery though!
  • Metal - Every 30 seconds, adds a sheet of material to a random stack in your inventory.
  • Yellow - Every 10 seconds, recharges a random device on your person by about 10%.
  • Dark Purple - Gives you burning fingertips, automatically cooking any microwavable food you hold.
  • Dark Blue - Attempts to extinguish you slowly if you are on fire, and automatically wets any items you are holding.
  • Silver - Slows the rate at which you lose nutrition.
  • Bluespace - On a two minute cooldown, teleports you somewhere safe for humans when you take enough damage. May interact with Bag of Holding.
  • Sepia - Randomly adjusts your speed.
  • Cerulean - Spawns a duplicate of yourself. If you die while holding the extract, you will automatically take control of the duplicate, if it's still alive. Does not work if the original dies from decapitation or from being gibbed.
  • Pyrite - Randomly colors you every few seconds. Become a disco ball!
  • Red - You are no longer affected by slows from equipment.
  • Green - While held, randomizes your name and appearance. When dropped, restores your original appearance and name. Mulligan!
  • Pink - As long as no creature in sight is injured in your presence, they will not attack you. If the peace is broken, takes two minutes to restore.
  • Gold - Summons a pet companion when held. If it dies, summons a new one!
  • Oil - If you die while holding this extract, you will violently explode.
  • Black - While strangling someone, your hands melt around their neck, draining their life in exchange for food and healing.
  • Light Pink - You move faster, become pacifistic, and anyone in critical condition around you is stabilized with 5u Epinephrine. You are now an ambulance.
  • Adamantine - You gain 5% damage resistance to all types.
  • Rainbow - Accepts a regenerative extract. If you enter critical condition, it will automatically use the extract on you.

Dominant Extract: MetalSlimemetal.png (Industrial Industrial.gif)

Industrial extracts can be injected with liquid plasma with a syringe. They will slowly absorb it, and use it to produce items.

The extract is not used up in this reaction, so a clever player can make factories with them.

  • Grey - Produces 5 monkey cubes per 2 units of plasma.
  • Orange - Produces a fancy slime zippo lighter for 6 units of plasma.
  • Purple - Produces an autoinjector with 20u regenerative jelly for 4 units of plasma.
  • Blue - Produces a full fire extinguisher for 10 units of plasma.
  • Metal - Produces 10 metal sheets for 3 units of plasma.
  • Yellow - Produces a 10MJ high-capacity power cell with anywhere between 0 and 1/2 of its charge for 5 units of plasma.
  • Dark Purple - Produces a sheet of plasma for 10 units of plasma, doubling your input.
  • Dark Blue - Produces a one-use fireproofing potion for 6 units of plasma.
  • Silver - Produces a random food or drink item per 1 unit of plasma.
  • Bluespace - Produces a synthetic bluespace crystal for 7 units of plasma.
  • Sepia - Produces a camera for 2 units of plasma.
  • Cerulean - Produces a normal extract enhancer for 5 units of plasma.
  • Pyrite - Produces a can of spraypaint for 2 units of plasma.
  • Red - Produces an orb containing 50 units of blood for 5 units of plasma. Draw with a syringe. The orb disappears when emptied.
  • Green - Produces a self-use-only autoinjector with 50u slime jelly for 7 units of plasma. Really only useful for slimepeople.
  • Pink - Produces an injector of synthpax and space drugs for 6 units plasma.
  • Gold - Produces a random coin for 10 units of plasma.
  • Oil - Produces an IED for 4 units of plasma
  • Black - Produces a fancy pack of regenerative, slime-brand cigarettes for 6 units of plasma.
  • Light Pink - Produces a heart-shaped box of candies for 3 units of plasma. D'aww.
  • Adamantine - Produces one sheet of adamantium for 10 units of plasma.
  • Rainbow - Produces a random slime extract for 5 units of plasma.

Dominant Extract: YellowSlimeyellow.png (Charged Charged.gif)

These extracts tend to be similar to the non-crossbreed slime extracts, but with roughly doubled effectiveness.

In order to activate one, you must fill it with 10u liquid plasma (gotten from grinding plasma sheets), and then activate/click it in your hand.

  • Grey - Produces a slime revival potion, bringing a slime back from the dead. Useful when you accidentally killed the last of a color.
  • Orange - Instantly makes a large burst of flame for a brief moment.
  • Purple - Creates a packet with 15 units of omnizine, rather than regenerative jelly.
  • Blue - Creates a potion that instantly neuters the mutation chance for a slime, making it always produce the same color for that generation.
  • Metal - Spawns 25 sheets of metal and 10 sheets of plasteel.
  • Yellow - Creates a charged 20MJ slime cell, which auto-recharges 1.5 times faster than the non-crossbreed counterpart. Also known as a "hypercharged" yellow core.
  • Dark Purple - Spawns 10 sheets of plasma.
  • Dark Blue - Creates a two-use pressure-shielding potion, making a suit and helmet spaceworthy.
  • Silver - Spawns a slime cake and 10 random drinks. Enough for a party!
  • Bluespace - Spawns 10 sheets of bluespace polycrystal.
  • Sepia - Creates a camera obscura, which lets you take pictures of ghosts.
  • Cerulean - Creates an extract maximizer, instantly boosting the uses of a normal extract to 5.
  • Pyrite - Spawns 10 sheets of bananium. Oh god.
  • Red - Creates a three-use lavaproofing potion, rendering items immune to burning in lava, which makes suits and helmets able to protect the wearer from it.
  • Green - Lets you pick which slime subspecies you want to turn into, rather than a random selection.
  • Pink - Love potion. When fed to a creature it makes simple animals friendly to you and anyone else you fed this potion to. If fed to sentient people they will fall in love with you, making heart effects appear on them when near you, and healing for 1 burn and 1 brute per tick when near your love.
  • Gold - Spawns 10 hostile mobs, at a slow rate.
  • Oil - Produces a smaller explosion, but it is extremely devastating, ripping a hole in the station.
  • Black - Randomizes the user's species! Careful, you can end up as a plasma person with this.
  • Light Pink - Produces a pacification potion, which will pacify simple animals, and give humans the pacifism trauma.
  • Adamantine - Spawns a completed adamantium golem shell. 11 sheets worth of adamantium!
  • Rainbow - Spawns 3 living slimes of random colors.

Dominant Extract: Dark PurpleSlimedarkpurple.png (Self-Sustaining Selfsustaining.gif)

The Self-Sustaining crossbreed actually produces four extracts, which can be activated in your hand to select which activation to use, removing the need for reagents.

Convenient for when carrying around beakers of reagents or using your own blood is inconvenient, or with extracts like Rainbow, which use rarer reagents.

Dominant Extract: Dark BlueSlimedarkblue.png (Chilling Chilling.gif)

Chilling extracts work like normal extracts, but with primarily defensive uses.

In order to activate one, you must fill it with 10u liquid plasma (gotten from grinding plasma sheets), and then activate/click it in your hand.

  • Grey - Creates a few barrier cubes. When used, they grow into somewhat weak slimy riot barriers!
  • Orange - Makes a ring of fire in a two space radius around you, for only a moment. Keep your allies close, and they won't get burned!
  • Purple - Gives 10u regenerative jelly to everyone in the area. Won't work outside!
  • Blue - Creates a breath mask which doesn't need a tank, and works no matter what air you breathe!
  • Metal - Temporarily surrounds you with unbreakable walls for 10 seconds, for when you need a quick breather.
  • Yellow - Recharges the room's APC by 50%. Useful when you can't hack the thing open!
  • Dark Purple - Removes all plasma gas in the room. Doesn't work outside!
  • Dark Blue - Seals you in a protective block of ice, which can either be destroyed, or you can resist to break out of it.
  • Silver - Creates several ration packs. While they aren't particularly tasty, they will never get you fat!
  • Bluespace - Touching someone or a creature with it adds/removes them from a list. Activating the extract will try to summon everyone on the list to you. They can resist out of it.
  • Sepia - Touching someone with it adds/removes them from a list. Activating the extract stops time for 30 seconds, and everyone on the list is immune, except the user.
  • Cerulean - Creates a duplicate of you, that you control! However, it quickly falls apart. When it enters critical condition, you go back to your original body.
  • Pyrite - Creates a pair of Prism Glasses, which let you place colored light crystals at will.
  • Red - The inverse of normal red slimes - it pacifies every slime on the screen completely!
  • Green - Melts your skin and hollows out your bone into a gun that chills your blood into a slowing gel. Finally, you can be Lovecraftian Megaman. 4 tile range with minor damage. About 4% blood per shot.
  • Pink - Creates a pink slime corgi puppy. It has no special properties.
  • Gold - Produces a golden capture device. You can use it on a simple, neutral creature to store it, and use it in hand to release it.
  • Oil - After 5 seconds makes a relatively large, but extremely light explosion.
  • Black - Transforms you into a completely random type of golem.
  • Light Pink - Creates a "Heroine Bud" - a special flower that pacifies whoever wears it on their head. Be careful; it's addictive, so it can't be taken off by the wearer!
  • Adamantine - Solidifies into a set of adamantine armor. Extremely slow, but defensive. It resists any attempt to speed it up.
  • Rainbow - Makes an unpassable wall inside every door in the area for ten seconds. Halt the tides!

Dominant Extract: SilverSlimesilver.png (Consuming Consuming.gif)

Consuming extracts eat lots of food, and produce special slime cookies, which will feed you a great amount and give you a special effect.

  • Grey - More filling than other cookies.
  • Orange - Heats you up, and grants immunity to the cold for 10 seconds.
  • Purple - Heals 5 points of every type of damage, even cellular damage.
  • Blue - Grants immunity to water-based slipping, and wets the floor around you for 10 seconds.
  • Metal - Increases resistance to brute damage for 10 seconds.
  • Yellow - Grants immunity to electricity for 30 seconds.
  • Dark Purple - Makes you treat toxin damage as toxin healing, and toxin healing as toxin damage, for one minute.
  • Dark Blue - Cools you down, immediately extinguishes you if you are on fire.
  • Silver - When eaten, no matter how much you eat, it will not get you fat!
  • Bluespace - Teleports you to a random place in the current area. Be careful when using these outdoors.
  • Sepia - Increases the speed at which you perform actions that have progress bars by 5% for a minute.
  • Cerulean - Has a 50% chance of spawning another cookie when eaten. Tasty!
  • Pyrite - Randomly colors you, as if you ate a crayon.
  • Red - Makes a splat of blood on the floor, and restores your blood by about 5%.
  • Green - Absolutely disgusting, making you vomit when eaten. However, it also completely removes any reagents from you when you do!
  • Pink - You hug people at random for 30 seconds.
  • Gold - Has a golden coin inside! You're rich!
  • Oil - Slows anyone next to you for 10 seconds.
  • Black - Makes you look like a spooky skeleton for 30 seconds.
  • Light Pink - Makes you, and anyone who stays right next to you, pacified for 10 seconds.
  • Adamantine - Increases your resistance to burn damage for 10 seconds.
  • Rainbow - Has the effects of a random cookie!

Dominant Extract: BluespaceSlimebluespace.png (Warping Warping.gif)

Warping extracts create runes with various effects on the targeted tile. Runes are activated either by walking over them or interacting with the rune itself, depending on the specific rune. Extracts have unlimited uses but a lengthy cooldown between placing runes, and are usually consumed upon activation.

  • Grey - Interacting with the rune will transmute 8 ordinary slime extracts into a slime of matching color
  • Orange - Interacting with the rune summons a lit bonfire that doesn't require Oxygen to burn.
  • Purple - Interacting with the rune summons a couple of random medical supplies
  • Blue - Interacting with the rune freezes surrounding tiles to create a large slip hazard. The rune itself is also slippery like water, though tripping on it will consume the rune.
  • Metal - Interacting with the rune summons a 3x3 block of mime walls.
  • Yellow - Rune activates automatically when stepped on by an entity with a power cell in their possession, triggering a single tile EMP burst.
  • Dark Purple - Interacting with the rune transmutes up to a full stack of plasma sheets into the same amount of a random material that can be mined on lavaland.
  • Dark Blue - Rune activates automatically when stepped on, sharply decreasing the temperature of the player that activated it.
  • Silver - Rune activates automatically when stepped on, adding 100u of nutriment to whatever activated it.
  • Bluespace - Interacting with the rune opens a storage container (bag of holding). All bluespace runes share the same storage container and are not consumed when activated.
  • Sepia - Rune activates automatically when stepped on, triggering a brief AoE timestop.
  • Cerulean - Rune silently activates automatically when stepped on, saving the appearance of the entity that stepped on it. Interacting with the rune consumes it and displays the last entity that stepped on it as a hologram.
  • Pyrite - Rune honks automatically when stepped on, randomly coloring the entity that activated it.
  • Red - Rune activates automatically when stepped on, playing a gibbing sound and covering the player that activated it with blood
  • Green - Rune activates automatically when stepped on, scrambling the DNA of the first humanoid that enters it (Mulligan)
  • Pink - Rune activates automatically when stepped on, triggering a substantial mood buff to the player that activated it.
  • Gold - Interacting with the rune will appraise the value of everything on top of the rune. If the total value is high enough, everything on the rune is exchanged for a random toy or rare item.
  • Oil - Rune activates automatically when stepped on, triggering a tiny explosion. Has a small chance to fail and will never be powerful enough to breach the station's hull.
  • Black - Interacting with the rune summons a dead player a a nameless shade.
  • Light Pink - Rune activates automatically when stepped on, adding 10u of pax to the player that activated it.
  • Adamantine - Interacting with the rune summons a reflector field that will reflect all energy weapon projectiles for 30 seconds.
  • Rainbow - Interacting with the rune teleports you to a small extra-dimensional room for your own personal use

Dominant Extract: CeruleanSlimecerculean.png (Recurring Recurring.gif)

Recurring extracts act like a normal extract, but gain an extra use every few seconds, as long as you don't use it up!

Sepia extract is special and will teleport back to the hand of the last person who touched it after activation.

Dominant Extract: PyriteSlimepyrite.png (Prismatic Prismatic.gif)

Prismatic extracts work like infinite-use paintbrushes, letting you dye tiles a new color.

Rainbow prismatic extracts are special, and let you choose what color you use!

Dominant Extract: PinkSlimepink.png (Gentle Gentle.gif)

Gentle extracts provide the effect of a luminescent's effect of that color when activated. They have the same cooldowns as the luminescent activations, and have unlimited uses.

Dominant Extract: BlackSlimeblack.png (Transformative)

Transformative extracts modify living slimes with passive effects or abilities, which are retained when slimes divide. One effect per slime, applying a new effect will overwrite the old one.

  • Grey - Slimes split into 5 slimes instead of 4
  • Orange - Slimes will light their targets on fire when shocking them
  • Purple - Slimes passively regenerate more HP
  • Blue - Slimes are guaranteed to retain one original color when splitting.
  • Metal - Slimes have 30% more max health.
  • Yellow - Slimes gain electric charge faster.
  • Dark Purple - Slimes rapidly consume atmospheric plasma, healing in the process.
  • Dark Blue - Slimes take 50% less damage from exposure to water
  • Silver - Slimes no longer lose nutrition over time, and may no longer feed.
  • Bluespace - Slimes with charge will teleport directly to their food. Sentient slimes may teleport randomly for 1 charge.
  • Sepia - Slimes move 30% faster
  • Cerulean - Slimes split into two identical adult slimes instead of four baby slimes.
  • Pyrite - Slimes always split into randomly colored offspring. Will never result in a rainbow slime.
  • Red - Slimes do 10% more damage when feeding and attacking.
  • Green - Slimes completely consume corpses they are feeding on at time of death.
  • Pink - Slimes will now speak common instead of simply understanding it.
  • Gold - Slimes will produce extracts that sell for more money in cargo
  • Oil - Slimes douse anything they feed on in flammable liquid
  • Black - Slimes are almost completely transparent, but will become fully visible while feeding
  • Light Pink - Slimes may randomly gain sentience, with loyalty to their caretaker (Slimes show up in ghost spawner menu, or may be clicked by ghosts to take possession of them)
  • Adamantine - Slimes take 50% damage from brute force attacks.
  • Rainbow - Slimes randomly change color every few seconds.

Dominant Extract: AdamantineSlimeadamantine.png (Crystalline)

Crystalline extracts produce a crystal pylon which applies an effects to a 7x7 square area centered on the pylon. They're fragile and areas cannot overlap, however.

  • Grey - Slowly feeds all slimes in the area.
  • Orange - Heats the immediate area and will immediately ignite anyone who gets too close.
  • Purple - Slowly heals everyone in the area.
  • Blue - Acts as an air purifier, replacing all gasses in the area with Oxygen/Nitrogen at room temprature.
  • Metal - Heals nearby cyborgs.
  • Yellow - Recharges power cells that are used on it and emits a soft glow. Will explode if a fully charged power cell is used on it.
  • Dark Purple - Turns gaseous plasma in the area into plasma sheets slowly. Does not work unless concentration of plasma is high.
  • Dark Blue - Vaporizes trash on the floor anywhere near it.
  • Silver - Makes nearby plants grow a bit faster and prevents weeds/pests from growing.
  • Bluespace - Teleports you to other bluepsace pylons when interacted with. The effect is instant if there are only two.
  • Sepia - Prevents most of the effects of being in critical condition for everyone in the area.
  • Cerulean - Grows small crystal shards in the area, which can be smashed and added to almost any other material to increase its stack size.
  • Pyrite - Randomly colors all tiles in the area every few seconds.
  • Red - Absorbs blood in the area, and may be interacted with to convert 100u of blood into a random human organ or piece of meat.
  • Green - When interacted with, steals and stores a genetic mutation inside of it. Applies this mutation to everyone in the area and cures the mutation from anyone who leaves the area.
  • Pink - Applies pacifism to everyone in the area.
  • Gold - Interact to be transformed into a random pet. Leave the crystal's area of effect to revert back into your normal form.
  • Oil - Permanently lubes all tiles in the area of effect.
  • Black - Transforms all humanoid races into a random slime race, if they stay near the crystal for long enough.
  • Light Pink - Ghosts may interact with the crystal to become a crystal lightgeist. Crystal lightgeists can heal others, but are not capable of speech or interaction.
  • Adamantine - Increases damage resistance for everyone in the area.
  • Rainbow - May consume other extracts in order to gain their effects, allowing for multiple effects in the same location. If multiple pylons with interactions required are used, only one may be interacted with

So You're a Traitor

What you can get here that can't be gotten easier elsewhere is an EMP and random hostile animals which include a few very deadly ones CARPS SPACE BEARS ALIUMS SPIDERS HIVEBOTS PINE TREES OH GOD IT'S HORRIFYING. Releasing the slimes is somewhat viable, but you will likely get caught doing so, and baby slimes are rather tame (Unless you have Red Slime Essence. Then it's a party.)

On the plus side, you do have a disposal chute that goes directly to space. Pretty handy for disposing of evidence, or people.

Also remember the havoc with grenades and bombs you can cause! If you can get access to chemistry as well you can make some interesting grenades. Advanced mutation toxin with sugar in one beaker, phosphorus and potassium in the other. Set a timer in the Medbay and drop it and listen to all the people turning into Slimes. This is when you laugh to yourself and realize it backfires when all the slimes attack you.

A full guide to ruining someone's day with slimes:

  • Red - Makes all slimes within sight range hyper aggressive. Also makes speed potions which can make it easier to evade guns while firing off other slime cores while still keeping high armor values or being able to go in space freely.
  • Green - Produces 1 unit of a chemical that turns people into different races including slime persons. Use it on someone and convince the AI that they're a danger to humanity. Needs at least 5 units for it to work in a smoke grenade.
  • Black - Turns people into actual slimes, no fort save. Again, 5 units in a smoke grenade will make for a very interesting shuttle flight.
  • Orange - Ignites a large fire.
  • Yellow - Huge EMP.
  • Silver - Only way to get real roburgers (with nanomachines) and motherfucking GATFRUIT.
  • Gold - We all know what this does.
  • Sepia - Stops time in a small radius, allowing you to wreak many kinds of havoc.
  • Oil - Explosion.
  • Adamantine - Makes golems that can be converted to the cult/soul shard/revved. They have to follow orders given to them by their creator so feel free to make them suicide bomb with gold slime cores.
  • Light pink - Enables you to make sentient beings, including anything a gold slime extract can produce. Magicarps included.

Don't forget about some of the wonderful slime crossbreeds for beating the piss out of fellow crewmen!

  • Burning rainbow makes a rainbow knife that does random types of damage, making it a lot harder to heal from!
  • The regenerative extracts can provide an important health boost in the middle of a fight, and Stabilized rainbow can auto-apply them in danger!
  • Looking to go out with a bang, literally? Take a stabilized oil with you, hug your target, and kill yourself!
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