[RPO] March 2026: Early Access Update - New Features for Paternity System & a bit more
NOW PUBLIC, USE THE MAIN POST TO DOWNLOAD, UPDATE NOTES ON CURRENT PAGE.
https://www.patreon.com/posts/75983577
Today I'm sharing the Early Access version of the new RPO Collection update.
-#-#-#-#--- WHAT'S NEW ----#-#-#-#
Core:
If a pregnant Sim does not reveal the pregnancy to others around, starting at 2nd trimester, if they hug or do other close-proximity interactions, the other Sim will notice the pregnancy.
Some new notifications to clarify some situations
Added back in the setting to disable romance between in-laws, formerly from the discontinued RPO M21
Some text changes & optimizations
bug fixes, notably to the "view family members" and "view relationships" interactions
M4 (paternity testing features):
IMPORTANT: these changes are not retroactive; they will apply only to new pregnancies. Previous cases where your Sims might be in the middle of a paternity test story might not be able to play out entirely with the update as too much has changed. If you're playing a storyline like that right now and it's crucial to you that it goes through entirely, finish that storyline before updating.
Sims can now do a paternity test for previous children (not just for the latest)
Sims can now reveal having lied about parentage
Sims can steal a hair to do secret paternity tests with
consequently, the "psychic" interaction (which was until now the only way for a Sim to figure out the truth about revealing it to the suspected partner) could now be made more realistic, ie, it doesn't always find the answer.
new integrations with EP21 secret child system. Now the paternity system from RPOM4 and EP21 secret child system should work hand-in-hand well in the cases where they both trigger. EP21’s system has more narrow contexts than RPOM4, so it's not necessarily abnormal if the latter engages but not the former.
when a child is already born at the time of the test, now their name is on the paternity certificate alongside the parents'
Other, less player-visible changes also occurred, such as streamlining of some elements to maintain better consistency
M9 (adoption):
when adopted Sims who are aware of it want to look for their bio parents but said parent is dead or culled, now they will be able to find that out, whereas before, they simply didn't see the interaction to look for bio parents in these case
Comments (54)
Hi! I’m not sure if this is because I’m doing something wrong or if it’s intended to work this way. I have a married Sim who, after having woohoo, took a pregnancy test and it came back negative. A few hours later, she had an affair, took another test, and it came back positive. As soon as the husband found out, he got angry because he immediately knew it wasn’t his. This confused me, because even though it’s true that the husband’s test had previously come back negative, he didn’t actually know that since his wife never told him. So my question is: once you take a test and it comes back negative, does the game “forget” all the Sims she had woohoo with before that? In other words, do I need to wait until she has woohoo with everyone I want before taking a pregnancy test for the interactions to work?
Hi, basically yes, this because if a test came out negative then she knows that sim can't be the parent of the pregnancy that does occur after; now indeed the snag with this is that the first sim slept with figured it out, this is not a scenario I thought of explicitly! but it is one that might be worked around with things that are already in place - I will see
Hi, I love your mods! I got the new secret paternity RPO, and read all the details and instructions. I made two sims in a secret affair have a baby. The babies were twins. Of course my first run with the mod was twins. It's mostly working, but a little off. I was able to steal a hair from official partner (not the father) and do the test. By elimination it properly ID'd to the mother the child's real father was the secret lover but only accounted for one, Twin A. Twin B does not allow for another steal hair test. It may allow for other options. Like telling the secret lover, or official partner truth or lie. But it's inconsistent and conflicting which Twin A or B. Its kind of a back and forth struggle. I have limited the "reveals" due to this, hoping not to throw the chance of scandal ensuing too soon or not at all. I think when I have the secret lover reveal to the official partner a scandal will still ensue, I hope?. But I wonder how that translates to the tree. Will it auto apply to both? Right now, with official partner under the guise both kids are his, both babies were added to the tree in his view as "distant relative." I did not reveal anything before the birth. Is "distant relative" how it's supposed to be logged in the tree for not bio official partner prior to reveal? He is not acting like they are not his. He doesn't know she's having an affair at all. For reference, I do have original Cordelia NPC and original Virgilio NPC, played as my households as a married couple in my save. I know Cordelia and Virgilio are distant relatives per original storyline. Which honestly, I have forgotten that, but I vaguely remember that being a thing when I view their family trees after installing dynasty. I am playing a version of Thiago (the bio father) that I pulled from the gallery as his NPC died as soon as I installed the latest expansion when it first came out this year. Even after the original Thiago died, by the time I discovered this Cordelia had no recollection of being married to him anyway, as if that whole storyline never existed. So while I still made the gallery version of him the brother of Sofia Abrantes through cheats, the family tree marks as "half". These sims are so far into the save where they'd either be elder if I let that happen or even culled for old age, but I have kept them despite letting their original family members age as unplayed NPCs and die. So both family trees are filled with many "unknown parent" etc. This save is a pre-dynasty expansion save. Long lifespan, and I don't auto age played households, only NPC. Anyway, I would have opted for one kid for my storyline. It probably would have made for less variables throwing the paternity test cues between each member involved. Totally understandable, though. Can/is adding a feature to adjust # of child per birth be a thing? So simmers can control this? Or is that something too large, too in depth to tackle? Does this exist in your settings already and I missed it? I have all RPO for reference. I tried to avoid too much text but include enough details. I'm not new to mods, I clear cache before every session. Ensure I have the latest updates for all mods I use. I ensure I don't have conflicting mods. And use MCCC to control neighborhood stories specifically in a way that RPO, Wicked, and base game don't scream at each other to control population of sims/pets. I don't have MCCC Woohoo. Not really applicable here, but for reference if you're thinking this was a mod clash. I used Woohoo with RPO, not Wicked to ensure there wasn't crossover. And I do have your compatible version RPO, and set the settings in Wicked as described on the mod details page. Despite understanding from the settings that would make Wicked the risk roll for pregnancy only, my sims are still getting pregnant when I use RPO woohoo, but only played households when I try to force it. So any family I play I make the female sims "infertile" to avoid the off chance someone gets pregnant without my control.
Hi, this is complicated on several levels because there's the 'related' aspect and the 'twins' aspect. What happened with the twins is that one of them is counting as latest child and one of them isn't. Doing the testing etc procedure during the pregnancy would have worked exactly the same as for a pregnancy with only one offspring, but once hitting birth, it's different. So the testing system for latest child and the testing system for not latest child are active. It's a bit silly because being that they're twins, we know they're really probably from the same dad (there are some real life cases if I recall where that's not the case though, but let's not digress). Point is, the hair thing will apply only to the latest child and there'll be options to test for the latest and not latest separately. In this case it so happens they're both from the same pregnancy. This is a bit complicated, honestly I hadn't thought about the twin case. Fact is it should still all work fine, it just so happens the babies need to be tested for separately. As for the secret child system, it should still also follow properly and unfold properly
Hi! I just downloaded this from the link provided. I saw that it says to delte the settings file if its 2.8 or less. Im not sure if this is 2.8 or 2.9 so I wanted to ask do I have to delete my settings file for this update ?
Hi, 2.8 was a version of years ago; if you are updating from a version that's decently recent, you can keep your setting file:)
Hi I had a glitch (or maybe a bug) while using the paternity DNA test. I had Summer from the BFF woohoing with three different men in a row, she got pregnant with the first one who was a friend with benefits but with twins, and after the DNA testing she got two pop-ups which said that Yoltic was the father in the first one and not the father in the second, even though he is indeed the father of both. And then she couldn't lie or tell the truth about both babies but only one! Is the module able to handle multiple pregnancies or is only a glitch in my game ? I'll try to reproduce it and see what happens.
Hi, strange! it was woohoo from the game or Woohoo from other mods? As for the case of twins... There might be a situation where multiples could cause some strangeness, though not in the pop ups you described, in something different, I will have to check and see 😱
Hey! I loaded my save up today (no mod changes since I played this weekend) and my two children who were secret children don't seem like they are registering as secret children any more - I wanted to check if working as intended or if something cleared. For both children, I tested against my husband and lover was the baby daddy, I lied to my husband and said they were his - then told lover that they were his as well. I had been able to go to lover and ask for money to take care of them and he sometimes would. I had a third child - this one is the husband's kid, and then suddnely they loose their secret child lines. I am not sure if it's the third child (I'm experimenting) or I'm also having the oldest go to daycare, OR I am suddenly getting a pop up the lover isn't satisfied in the relationship anymore. If there is a known glitch let me know! I'll keep testing I need the drama! I need the Secrets! I think I found what it is? The Preschool mod I believe was the culprit! I've removed it and so far I've been able to play out a day without any changes.
Hi, iiiinteresting, I wonder what sort of interference it might do 😵 good to know for something to watch out for!
Hi! I am not seeing any option at all for paternity testing under the relationships, family, and pregnancy menu!! Can you help?
Hi, that would either indicate an installation issue or an in game context that does not qualify for paternity testing. Can you give details of it
Hello! First of all, thank you so much for the mods! I adore your mods and can't thank you enough for the hard work! I just wanted to let you know that I am getting a regular error conflicting with the dynasty aspect in the new pack where when I try to edit the ideals or add sims, it causes a bad leadership moodlet and the changes wont stick. BE always flags RPO as the culprit. Sure enough, if removed, I don't have any errors and I am able to add, change and remove aspects of the dynasty.
Hi, and thank you for the kind words! I've not heard any such thing before and don't hace that in game, so it would be awesome if you could send the error report you get ; usually people send them in Discord because Patreon doesn't let us send files in comments or private messages
Hi there, I am having an issue with custody visits. The game keeps saying there is a visit ongoing when there isn't. I don't have the option to start a new visit. I've followed the recommendations on google, updated toolbox, removed and repaired game, added back in. Still having the same issue unfortunately. Thank you so much for your work!
Hi, would need to see sim logs and screen shots, you can send that on the discord and we can explain what info to get and how
The WTD cheats don't work. I am using the latest version. I removed all other mods in case it was a conflict and still nothing. When I click the WTD cheats option everything shows as a red X and nothing happenswhen I click it.
Hi, the red X 's are normal and we're caused to a sims game update but are cosmetic only and not a problem. When clicking the wtd cheat, it will then repeat the window in case you want to give another. Once you've applied these cheats, send your sim to get tested and report back on the result
Hello! i had this mod i believe a year ago but it crashed frequently so i had to delete it. Does this download link include the whole mod? or just a piece? :D also, my game is 1.113.291, is it compatible? also, i downloaded the core library from your page directly, do i have to delete it in order for this link to work? sorry for questions, you are amazing!
Hi, none of my mods are capable of making the game crash Latest game version and the one before marketplace update are currently compatible, but nothing older This is all files together but you can remove whichever ones you don't want Yes you'd have to delete files from other versions, core is included in here
I thought, I could live without your mods since returning back to TS4 after several months, but I couldn't after I saw the new update you released. TY!
Hello new here sorry I don't know where to download Relationship & Pregnancy Overhaul. Could you drop the link pls? I've installed teens cupid corner but it doesn't work. Could it be because I have WIcked Whims installed?
Hi and welcome, you are on the page for the early access download currently, on which the download link is Regarding teens cupid corner, check your installation http://lumpinoumods.com/how-to-install-sims-4-mods/
Hey, I don't know if this has always been an issue but if I change the pregnancy partner (the dad) in MCC and run a paternity test, two notifs come up saying the dad is then isn't the father. To be clearer: I have a SIM who slept with two people, the person who ended up being the father wasn't the one I intended so I changed it in MCC and thought this would change in the paternity test, however it seems to glitch out the paternity test so either the person I did want to be the father the paternity test says they're the father or I do the test using the other skm and it bugs out entirely. I hope this makes sense, wanted to bring this to your attention.
in addition, one of my pregnant Sims keeps queueing up the shout forbidden words action constantly, it isn't affecting anything but it's a weird bug that didn't happen before I installed this version I think, but I get no exceptions so it might be a game bug.
When my sim has a secret baby the family tree only connects to their real dad. There's no secret dad or foraged dad line. How can I fix this?
Hi, what happens depends on a lot of factors so we would need to discuss the details. Do you have Discord?
Hi, I'm a new subscriber, I was already following through the free access. Is there a Brazilian Portuguese translation available yet? Or does the old translation still work?
Hi, and welcome! Unfortunately I don't know as I don't make or manage translations. Some are made available by people on Curseforge, some might end up listed on here https://docs.google.com/spreadsheets/d/e/2PACX-1vRh8aWQZJDKWjmFJyLlewfk7jaCA8BNsfLSscAGurMObliMfTD4Qdiwy2Z_Lnq7J6KXGI_qfxMi57oW/pubhtml?gid=1843668006&single=true but yeah really it's up to the individual translator
I love love love this Mod, however it always makes my game freeze after a while. Is there a way to fix this?
Hi, that should not be possible to happen and is not a known issue: we can help you look into it but that would take sharing some files so it would have to be on the discord server
I'm sorry to ask a dumb question but in the description, it does state you can test previous children. How can I reveal that the baby is a secret baby to the husband(ex-husband now) that thinks she is his baby? I don't see an option to steal hair or the option to do a test on the baby. I've been looking forward to use this in my story line.
Hi, by 'previous children' I mean children that have been born after the update and that aren't the latest child of the sim (whereas before, only the latest child of a sim could have paternity testing). Anything from before the update, ie Sims born before it etc, the system cannot work on
Good afternoon, I seem to have major problems while trying to install the updated version, it's causing my game to crash. I have installed the zip and unziped the file with the same result.
Hi, none of my mods are capable of causing crashes so there are two possibilities here: an installation problem or another mod that's broken. You can run a Mod Hound scan for starters and see if it picks up anything, you can find links and troubleshooting info here https://www.patreon.com/posts/122574094
Hi! I’ve been using the mod and I love all the new script additions—it’s really fun. Thank you! But I’m confused: who can steal whose hair for a secret paternity test? cause it doesn’t show up in my sims‘ pie menu. My Sims are properly married and have a child together, and I used MCCC cheats to have another secret baby to test the paternity testing.Does this feature not work for babies created with MCCC cheats?
Hi, it's part of the paternity system, which triggers when a sim Woohoo's with several Sims who can impregnate recently before finding out they're pregnant - basically if Maria sleeps with Joe and Kris and then finds out she's pregnant, she will know it's from one of them, but which? That's where the paternity system comes in. (for an example that doesn't trigger it: Being a partner with one sim and sleeping with an affair but not the partner, this will not trigger paternity systems, because the sim knows they didn't sleep with their partner recently but only with the affair, so they automatically know the affair's the bio parent of the pregnancy)
yay
Thank you.
Hi Lumpinou, thank you so much for your amazing work. Just wondering if there is any special compatibility with the newest expansion pack, Royalty and Legacy, specifically with the Secrets system?
Hello ! (sorry for my bad english i'm french) just got a paid membership cause i love your mods !! i have an issue with RPO, my game don't allow me to have a secret child, i checked my mods with a mods scan and they all good so why my game can't understand when a child is a secret child and make them legit by default ? thanks for your help
Hi, c'est difficile de diagnostiquer ce genre de choses dans les messages Patreon sans fichiers ou images, dans le server Discord nous pouvons échanger des images ou fichiers log etc, si vous avez Discord
Thank you! I really enjoy your mods!
Thank you, I really love and appreciate all the work you put into making sure your mods integrate super well within the game and its EPs. You're always very thorough and clear in the posts descriptions as well, it's really useful! Have a nice day!
Thank you so much for this update. (It's like a treat considering yesterday's fiasco! LOL) I have a question though: Is the M19 Optional AddOn being updated too? I only see the v2.985 version of it, but it's conflicting with the new v2.986 M19. I'll remove the OptionalAddOn for now so no rush. I just wanted to check that I'm not missing anything.
You can use the one from the previous version just rename to change the 5 to a 6, that file hasn't changed. I'm not including it in the zip file because the optional cas add on has a requirement and people who don't read instructions then struggle to understand the pop up about missing requirements etc
Wait so is this updating for the recent patch, or would it work if we're delaying the update? Sorry for the dumb question.
It'll work both in this week's patches and in the version just before that. No older game versions though
Thank you so very much :)
Eeek, feeling really special being a part of the early access crew over here <3 TY!
Thank you for the quick response in updating your mods. I really love them. :)
just got a paid membership. your mods are my favorite thank you for everything you do for this community!
Thank you
So cool, thank you!!
