mod [mod] Human Cattle - Yet Another Milk Mod

[doop_lvl]

i have made an update

[badtowel]

FYI - I downloaded the update (base and add-on) which gave me a ton of these errors in the patch ops thought def file:
 

[Human Cattle - Yet Another Milk Mod - Start of stack trace]
Verse.PatchOperationAdd(xpath=""): '' is an invalid expression.
Verse.PatchOperationConditional(xpath=Defs/ThoughtDef[defName="EnvironmentCold"]/modExtensions): Error in <match>
Verse.PatchOperationConditional(xpath=Defs/ThoughtDef[defName="EnvironmentCold"]): Error in <match>
[End of stack trace]
Source file: C:\Program Files (x86)\Steam\steamapps\common\RimWorld\Mods\Human Cattle - Yet Another Milk Mod\1.6\Patches\ThoughtDefPatches.xml

I ran the XML structure through Gemini - it rewrote the nesting conditional block structure to be more efficient and fixed the errors:


 

 

[doop_lvl]

its really odd. these errors dont show when i test it on a minimally modded game. i'll look into it later

[Akiitan]

Mod seems to be getting flagged as a virus by Windows Defender. (Trojan:Script/Wacatac.C!ml)

By the way, it would be really cool if there were ways to enhance milk production to ridiculous levels beyond what the mod already lets you do.

Currently the best way to do this is by having RJW and giving the pawn huge breasts, but it would be really nice if there was an alternative that could achieve the same effect.

 

[doop_lvl]

2 hours ago, Akiitan said:

Mod seems to be getting flagged as a virus by Windows Defender. (Trojan:Script/Wacatac.C!ml)

i've never had that virus alert before wth. a quick search tells me some game mods may be detected as false positive, but it would be odd if my mod is the only one detected as a virus as i learn to mod by seeing how other mods do stuff anyway.

 

2 hours ago, Akiitan said:

By the way, it would be really cool if there were ways to enhance milk production to ridiculous levels beyond what the mod already lets you do.

Currently the best way to do this is by having RJW and giving the pawn huge breasts, but it would be really nice if there was an alternative that could achieve the same effect.

maybe i'll add another type of cattle blessing ritual that enhances lactation. or maybe bionics that wont get locked out of the ex-human cattle meme. for altering lactation, i mostly plan to add genes atm. but highest priority for the next update is going to be lactation tab and mod settings, neither of which i have tried playing around with

[doop_lvl]

i have replaced the lactation gizmo with a new lactation tab. you can set how people should or shouldnt be milked from here now

 

[fruitshuit]

Thanks for making this!  I'm having a bit of an issue, lactating pawns' capacity seems to be changing every single tick of the game:

 

 

 

 

This is the same pawn just seconds apart, but when the game is playing the milk fullness flickers up and down pretty much every tick. Initially I thought it might be a mod conflict, but the behaviour is persisting after disabling all my mods except this one and harmony.  It seems to be causing pawns to be in constant need of milking due to them having 100% fullness even when they shouldn't be.  I can't quite reproduce what's happening, on new colonies everything looks fine but the problem starts appearing after a few hours (flickering for a bit on one pawn, then stabilising for a bit, then flickering again), and after a few days of playing a colony it eventually becomes constant on every lactating colonist.  Not sure if it's linked to colony development, number of lactating pawns, or something else.

[doop_lvl]

9 hours ago, fruitshuit said:

Thanks for making this!  I'm having a bit of an issue, lactating pawns' capacity seems to be changing every single tick of the game:

 

 

 

 

This is the same pawn just seconds apart, but when the game is playing the milk fullness flickers up and down pretty much every tick. Initially I thought it might be a mod conflict, but the behaviour is persisting after disabling all my mods except this one and harmony.  It seems to be causing pawns to be in constant need of milking due to them having 100% fullness even when they shouldn't be.  I can't quite reproduce what's happening, on new colonies everything looks fine but the problem starts appearing after a few hours (flickering for a bit on one pawn, then stabilising for a bit, then flickering again), and after a few days of playing a colony it eventually becomes constant on every lactating colonist.  Not sure if it's linked to colony development, number of lactating pawns, or something else.

yeah... i have been getting this bug report. unfortunately, i havent been able to replicate this on my end, but i have just made an update that will hopefully let me troubleshoot this bug easier. now the lactation will indicate where that full milk value comes from. next to the milk counter, it will list the values that factors in to the milk fullness. they are "init" which is the vanilla initial lactation value, "body" for the body size, "lact" is the factor that comes from the lactation stage, "boob" is the calculated RJW breast size, and "ratio" which is the lactation fullness to milked resource item ratio.

 

since i havent been able to replicate this, i will need your help to identify where the flickering numbers are coming from. apologies for the inconvenience

[fruitshuit]

Happy to help! With the update, this is what I'm seeing.

This is a minimal mod brand new game, the only active mods are Harmony, RJW and this mod:

 

Three female colonists, with some lacton spawned in for them to take, I had one take a single dose, one took 5 doses, and another took doses until she hit the limit (deleting the tolerance each time so additional doses would take effect). Initially you can see they all have individual values.

 

The second row is what shows up after saving the game and reloading.  They now all have the same value, the value of the colonist on the right. Initially they are all at that value.  But after a few minutes, the value begins bouncing around, between the values of the three colonists (so one tick it shows everyone with pawn A's limit, then the next tick it's pawn B), then it stabilises again, everyone showing the right pawn's value again.

 

One possibly unrelated thing, usually when I was testing this, I got an "init" value of 0.5, but sometimes that value was smaller or larger, as high as 1.16 or as low as 0.02.

[doop_lvl]

update. this should hopefully fix the flickering bug. thanks for the help fruitshuit!

[fruitshuit]

So far so good on my end!  Thanks for the quick update!

[doop_lvl]

ive made another bug fix update fixing a bug that persists between saves. if you loaded a game with this bug, unfortunately itll mess up the init factor for milk fullness until you restart RimWorld. clearly, i have no idea how this part of modding works, but im starting to learn how to do things the right way. im deeply sorry for the inconvenience

[fanta2513]

hi doop, thanks for this great mod you have made. May i know if there is any way for the hucow to breastfeed adult colonist/baby animal directly？When i was looking at the percept "Drinking human milk: desired directly only", i thought this would mean adult pawns can drink milk directly from hucow. But apparently it means whether the milk has been cooked or consumed raw. 

[doop_lvl]

1 hour ago, fanta2513 said:

hi doop, thanks for this great mod you have made. May i know if there is any way for the hucow to breastfeed adult colonist/baby animal directly？When i was looking at the percept "Drinking human milk: desired directly only", i thought this would mean adult pawns can drink milk directly from hucow. But apparently it means whether the milk has been cooked or consumed raw. 

adult breastfeeding is a feature ive been thinking of adding. for now, you cant breastfeed adults

[doop_lvl]

Adult Breastfeeding Update

The mod now adds a new feature that allows breastfeeding adults if enabled in the lactation tab. Well, not just adults, but children too. And since it's different than vanilla breastfeeding, I'll refer to it as "boobfeeding" which is the name I gave it in the code to differentiate from vanilla breastfeeding.

 

New Weaning Mechanic

Babies now need to be weaned if they ever breastfeed. They get an unweaned health status when they breastfeed, which has no effect on the baby, but it can persist into the baby's childhood and adulthood. Unweaned pawns have a need that makes them seek to boobfeed from anyone who's lactating — including animals — which will then give them a mood buff. Not fulfilling this need simply gives a mood debuff. To get rid of the unweaned status, just don't allow them to boobfeed for 10 days and it'll go away naturally.

 

Adult Boobfeeding

I have added a precept that makes adults also seek to boobfeed regardless if they are unweaned. Basing it off cannibalism precept balance, they get a mood debuff if they don't boobfeed for 8 days.

 

Difference from Vanilla Breastfeeding

• Boobfeeding isn't sterile. Unlike breastfeeding babies, boobfeeding children and adults may get food poisoning if the milk item can cause it. On the plus side, they may get the mood buff if the milk item gives a mood buff if consumed. They will need to boobfeed enough nutrition of said item though. If they boobfed less than the item's nutrition, they may not get the mood buff.
• Boobfeeding is initiated by the person who has boobfeeding need. This is very much unlike vanilla breastfeeding, which is initiated by the breastfeeder trying to ensure that a baby is well fed.
• Prisoners don't have boobfeeding need. Since they are generally constrained to their cell, they're unlikely to ever find someone to boobfeed off of.

[pink0verl0rd]

Hey great mod I have been using on my save. I noticed that my pawns breast size seem to be increasing while they are lactating during the mother stage is that intended? The pawns breast size kept growing until they basically couldn't move

[Alpenglow]

In this mod, does the pawn take off her top when feeding the baby?

[ESeeker]

15 minutes ago, Alpenglow said:

In this mod, does the pawn take off her top when feeding the baby?

that feature is part of apparel tweak(no guarantee it will work)

[doop_lvl]

4 hours ago, pink0verl0rd said:

Hey great mod I have been using on my save. I noticed that my pawns breast size seem to be increasing while they are lactating during the mother stage is that intended? The pawns breast size kept growing until they basically couldn't move

breast size growth is intended, but its supposed to be very slow. it should normally take a year to reach the astronomical size from large. how fast did it increase?

[victor1948]

How to enable breastfeeding for adults? I set the settings to anyone and only breastfeed, but nothing happens. Am I doing something wrong?

[doop_lvl]

5 hours ago, victor1948 said:

How to enable breastfeeding for adults? I set the settings to anyone and only breastfeed, but nothing happens. Am I doing something wrong?

they only breastfeed if they have the breastfeeding need. you can have breastfeeding by adding the adult breastfeeding precept or by having them unweaned

[pink0verl0rd]

On 10/26/2025 at 6:01 PM, doop_lvl said:

breast size growth is intended, but its supposed to be very slow. it should normally take a year to reach the astronomical size from large. how fast did it increase?

 

Yeah that was basically the amount of time it took to grow. I was just trying to prepare my colony to use the ex cattle meme, but realized I cant let my ex human cattle be milked anymore lest they grow into giant pairs of tits that couldn't walk across my colony

[doop_lvl]

12 minutes ago, pink0verl0rd said:

 

Yeah that was basically the amount of time it took to grow. I was just trying to prepare my colony to use the ex cattle meme, but realized I cant let my ex human cattle be milked anymore lest they grow into giant pairs of tits that couldn't walk across my colony

lol you might need a breast reduction method. lmk if you think i should change this

[zurtrin69]

Could it be made so that pawns are milkable even when they're resting/otherwise incapacitated? It doesn't make much sense to me that you need them to be standing to get milked and it can be really inconvenient at times.

 

Love the mod otherwise, definitely my new favourite of all the different milking mods.

 

Edit: Another suggestion, currently with the human milk desired precepts even your cattle will get negative moodlets for not consuming any milk which seems counterintuitive to me, especially with the reduced nutrition they get for consuming human milk. Could this be changed so the moodlet doesn't apply to lactating pawns or those with a certain level of cattle conditioning or something?

 

On 10/27/2025 at 7:48 PM, doop_lvl said:

lol you might need a breast reduction method. lmk if you think i should change this

 

I like the breast growth but eventually you get to the point where the pawn literally can't stand up unless you give her archotech legs. Would it be possible to add something to cattle conditioning that counteracts the movement debuff of giant breasts?

Edited October 29, 2025 by zurtrin69

[doop_lvl]

update. ballthordgod from the RJW discord server has provided some fantastic and very well-needed sprites for the mod