Human resources

Cannibalism, slavery, wearing human skin, corpses: most pawns have a severe distaste for these things. If you let them happen in your colony it will impart significant mood penalties on many colonists.

In dire circumstances it can be necessary to use every resource, even the human ones. A number of traits can make this feasible as a core strategy for a colony. Some might even make it the preferable way.

Traits

The three traits below make a colonist react indifferently or even enthusiastic towards human abuse. If there is more than one of the traits on the same person, the most beneficial one applies (e.g. a Cannibal will always receive +20 mood per day by eating raw human flesh, no matter what other traits that colonist has). Any of the traits remove the penalty from butchering humans.

Psychopath

Has no issues seeing fresh corpses or butchering them but still suffers penalties from seeing rotten corpses, eating human flesh, or wearing human skin clothing. Has no qualms about slavery and organ harvesting.

Bloodlust

The only one who doesn't mind seeing rotting corpses; likes to wear human skin. Does not like cannibalism or slavery. Does not mind wearing tainted apparel (i.e. taken from a dead body).

Cannibal

Loves to eat human flesh and also likes clothing made from skin. Does not like slavery or organ harvesting.

Table of mood effects

Trait	Observes corpse	Observes rotting corpse	Butchers human	Somebody butchers human (colonywide)	Eats raw human flesh	Eats meal with human flesh	Wears human skin clothing	Trades human flesh or leather	A slave is sold (colonywide)	An organ is harvested (colonywide)
None	-3 Mood (0.25 days. 3 Stacks. 0.5 Stack Multiplier)	-7 Mood (0.25 days. 5 Stacks. 0.3 Stack Multiplier)	-6 Mood (6 days. 4 Stacks. 0.75 Stack Multiplier)	-6 Mood (6 days. 1 Stack)	-25 Mood (1 day. 3 Stacks. 0.25 Stack Multiplier)	-20 Mood (1 day. 3 Stacks. 0.25 Stack Multiplier	-3/-5/-7/-8 Mood	No Debuff	-3 Mood (4 days. 5 Stacks)	-5 Mood (7.5 days. 5 Stacks. 0.75 Stack Multiplier)
Psychopath	Immune to Debuff	Normal Penalty	Immune to Debuff	Immune to Debuff	Normal Penalty	Normal Penalty	Normal Penalty	No Debuff	Immune to Debuff	Immune to Debuff
Bloodlust	Immune to Debuff	Immune to Debuff	Immune to Debuff	Immune to Debuff	Normal Penalty	Normal Penalty	+3/+5/+7/+8 Mood	No Debuff	Normal Penalty	+4 Mood (stack unknown)
Cannibal	Immune to Debuff	Normal Penalty	Immune to Debuff	Immune to Debuff	+20 Mood (1 day. 1 Stack)	+15 Mood (2 day. 1 Stack)	+3/+5/+7/+8 Mood	No Debuff	Normal Penalty	Normal Penalty

Ideology precepts & mèmes

Cannibalism Precepts	Butchers human	Somebody butchers human (colonywide)	Eats human flesh	Wears human skin clothing	Eats non-human flesh meal
Cannibalism: Abhorrent	-12 Mood (6 days.)	-5 Mood (5 days. 5 stacks. 0.75 Stack Multiplier)	-20 Mood (1 day. 1 Stack)	-2/-4/-6/-8 Mood	Immune to Debuff
Cannibalism: Horrible	-6 Mood (6 days.)	-3 Mood (5 days. 5 stacks. 0.75 Stack Multiplier)	-12 Mood (1 day. 1 Stack)	-2/-3/-5/-6 Mood	Immune to Debuff
Cannibalism: Disapproved	-3 Mood (6 days.)	-1 Mood (5 days. 5 stacks. 0.75 Stack Multiplier)	-5 Mood (1 day. 1 Stack)	-1/-2/-3/-4 Mood	Immune to Debuff
Cannibalism: Acceptable	Immune to Debuff	Immune to Debuff	Immune to Debuff	Immune to Debuff	Immune to Debuff
Cannibalism: Preferred	Immune to Debuff	Immune to Debuff	+2 Mood (1 day. 1 Stack)	+1/+2/+3/+4 Mood	Immune to Debuff
Cannibalism: Required (Strong)	Immune to Debuff	Immune to Debuff	+4 Mood (1 day. 1 Stack)	+2/+3/+5/+6 Mood	-2 Mood (1 day. 1 Stack)
Cannibalism: Required (Ravenous)	Immune to Debuff	Immune to Debuff	+6 Mood (1 day. 1 Stack)	+2/+4/+6/+8 Mood	-4 Mood (1 day. 1 Stack)

Corpse Precepts	Observes Corpse	Observes rotting corpse
Corpses: Ugly	-4 Mood (0.5 days. 3 stacks. 0.5 Stack Multiplier)	-6 Mood (0.5 days. 5 stacks. 0.3 stack multiplier
Corpses: Don't care	Immune to Debuff	Immune to Debuff

Strategy

Human butchering

Butchering humans may be either used as a last resort in a normal colony, or used as a nice mood buff for cannibals. Human meat is absolutely disgusting for non-cannibals (see above for mood debuffs), but to cannibals, raw flesh is even better than a lavish meal. In normal, non-cannibalistic colonies, human flesh can be kept for cannibals, but sometimes butchering humans is not worth the effort (trading a colony-wide -6 for a +10 or +20 for a few or single colonist). If people are butchered, they should be butchered together, as the mood debuff does not stack. It can also be kept as a last resort food, such as during a famine or a toxic fallout. Anyhow, corpses should be only hauled and butchered by colonists who don't care about corpses, and stored in shelves to stop non-sociopathic colonists from seeing the corpse before it is butchered.

Slavery

Main article: Slavery

Slavery in Core RimWorld is the sale of prisoners to other factions. It is a quick way to get decent amounts of money quickly. Pawns will suffer a mood penalty of -3, stacking up to -15 for 4 days once slaves are sold. Unless you have a colony of psychopaths, selling slaves can cause result in significant mood issues and mental breaks. Besides the trait, there is no way to prevent the negative moodlet in core RimWorld, however like all mood debuffs, there are strategies to mitigate its effect.

One way of dealing with this is to sell only 1-2 slaves every 4 days, keeping the mood debuff small, and easily managed by measures such as temporarily upgrading to lavish meals, allowing or increasing drug consumption, or simply tanking the mood debuff if the base mood of the colony is already high. This slow process has a downside, however. Traders generally only stay for around two days, and only appear occasionally, meaning either pawns will have to caravan the slaves to nearby faction bases for trade, or that it will be hard making slavery the main source of profit for the colony.

Alternatively, as the penalty caps out at a stack of 5, selling more than 5 prisoners does not increase the debuff further. Thus, selling in a single burst can be more efficient so long as the larger debuff can be withstood. Timing the sale with the occurance of a wedding or party for example can help. Slaves can be stored in cryptosleep caskets to eliminate their upkeep cost while waiting to sell them. Note that prisoners must generally be anaesthetized to do so, and after removing them from the casket they will take some time to both wake up and fully recover which can affect both whether they can be sold and their price. Plan ahead to give them time to recover before their time of sale.

Pawns will have a significant negative opinion of whoever sells the slaves.

Humans have a base value of 1750. This is reduced and increased by various traits, reduced by injuries and ailments, and increased by the presence of bionics. The exact variables and their effect is still in need of analysis but at a certain point harvesting a prisoner for their organs can be significantly more profitable. Note however that the debuff lasts longer for organ harvesting, though it is similar in magnitude at the maximum stack sizes for both debuff types. Butchering the resulting corpse for leather and meat can increase the profit, though at the cost of incurring another debuff. Also note that the slavery, harvesting and butchery debuffs stack - ideally only slavery or harvesting should be selected in colonies not exclusively populated with psychopath or bloodlust pawns.

Slavery with the Ideology DLC

With the Ideology DLC, slaves become controllable workers. Slaves are acquired through threatening prisoners and dropping their will down to zero. Although slaves are controllable and appear in the colonist bar, they work at 85% speed and you run the risk of a slave rebellion, similar to a prison break. The frequency of slave rebellions are determined by mood, suppression, proximity of weapons, and the presence of colonists. Unlike prisoners, colonists and slaves can have intimate relationships. Colonists and slaves cannot sleep in the same bed, but they can sleep in the same room. If you want the two to sleep together, both must be made into colonists or slaves.

Organ harvesting

See also: Surgery and Medical Surgery Success Chance

Organ harvesting requires a doctor and 2 units of herbal medicine or better. You also must keep the harvested organs frozen, meaning taking them in a caravan is problematic if the weather is over freezing temperatures. Organs must be undamaged; diseased organs are not available to harvest.

The kidneys, lungs, liver and heart are all options for harvesting, for use in other colonists or selling on the market. Their default market value is listed below, but in practice the actual buying/selling price is the market price modified by trading skills/etc.)

• If unwilling to organ murder the donor, the best option is harvesting...
  • 1 Kidney worth 900
  • 1 Lung worth 1,000

...for a total of 900 + 1,000 = 650.

• Additionally, if a prosthetic heart is available...
  • +1 Heart (worth 1,200) by installing a cheap prosthetic heart (- 230) to replace the harvested one, allowing the patient to live.

...for a total of 900 + 1,000 + ( 1,200 - 230) = 920.

If your designated surgeon needs practice, you can also remove the tongue as well, though there is no organ market for used tongues.

• If willing to organ-murder the donor, you can harvest...
  • 1 kidney worth 900
  • 1 lung worth 1,000

...and then either..

• 1 heart worth 1,200

...or...

• 1 liver worth 1,200

These three organs are worth a total of 900 + 1,000 + ( or 1,200) = 1150 market value.

If the heart or liver is damaged, the other can be harvested for the same value. If that is also unavailable, the second lung or, if not that, then the second kidney are the most profitable alternatives.

Harvesting the heart or liver (or a second kidney or lung) kills the patient, and no further operations are possible (but see next).

• Optimally, if you can acquire a prosthetic heart (- 230) to replace the harvested organic one, that allows the patient to live and you can continue with another operation, harvesting both the heart and then the liver (before the patient then dies), for a total of...

900 + 1,200 + 1,000 + ( - 230) = 1420 market value, or 1650 if you crafted your own prosthetic heart (less your manufacturing costs/etc.).

Moods:

Non-psychopaths/bloodlust surgeons get a -5 mood debuff for harvesting organs. The debuff stacks 5 times, with a debuff multiplier of 0.75. All colonists also get a -6 for the procedure occurring. This does not occur when replacing an organ with an artificial one, nor from removing prosthetics.

Mitigation strategies

It is possible to butcher human corpses without penalty for anyone if you send everybody who would be debuffed off the map (on a caravan) until all humans have been chopped up. You need a butcher who can butcher humanlikes without debuff (or else your butcher will take a severe mood penalty).

Colonists who are not on the map when a humanoid corpse is butchered do not receive the "we butchered humanlike" mood penalty. It is sufficient to put all colonists who are neither psychopath, bloodlusted nor cannibal on a temporary caravan (take no items), send them off the map to an adjacent tile and make the caravan rest immediately. Then have your psycho butchers chop up all the humans. Re-enter with the caravan when it is done. It is not necessary to take any prisoners off the map, as they do not receive the debuff in any case.

Alternatively, given the mood penalty is releatively low for human butchery, only -6, the penalty can just be taken. Some additional care cam be to maintain mood levels through other means to make this more palatable, this includes providing additional recreation, psychic soothe pulsers, better meals, drugs or improved bed and rec rooms. Just providing 1 lavish meal per affected colonist per day for the 10 day duration is more then enough to counter the penatly. It is recommended to use a non-affected pawn to actually do the butchery though, as the penalties stack and -12 is a significant debuf. Also keep in mind that the butchering pawn's social standing will be much reduced in the eyes of affected pawns. This can ruin relationships by causing a pawn to hate their spouse for example.

That said, doing this can be quite profitable especially on higher difficulties where you get raided a lot.

The caravan move does not work for organ harvesting or slavery; these transgressions are detected by colonists anywhere on the map, however countering the debuff with other buffs is still a viable method.

Everybody will handle human meat without complaint, as long as they do not have to eat it in any form.

Storing human corpses for butchery will result in the Observed Corpse mood debuf, this can be prevented by hiding the corpses in shelves. See that page for details.

Human leather fetches a good price. It can also be used for furniture without penalty. Human meat can be sold, fed to carnivores, turned into kibble, or converted into chemfuel at the biofuel refinery.

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