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WIP: TS4 Underwater Diving Sneak Peek (Patreon)

Published:
2026-06-05 23:10:46
Edited:
2026-06-12 20:44:52
Imported:
2026-06
Tags:

Content

Hey y'all!

Here's a brief look at what I've been working on over the last month: functional underwater diving for The Sims 4! 🌊

This project is still in progress, so it's not entirely flawless yet, but I wanted to show y'all what I've accomplished so far and get your feedback on what you'd like to see me do with it. There's a lot left to do, but I'm super excited about how it's coming together!

Also, I want to mention that I'm aware of the bug that is currently plaguing the Expanded Mermaids mod, causing some players to be unable to click sims to open the pie menu. I'm sorry if you've experienced this bug, but I'm actively trying to get to the bottom of it. It doesn't seem to affect the majority of players and I'm unable to trigger this bug in my own game, so if you've encountered it, please DM me with the following details:

Your game settings

The other mods you use

The packs you have installed

What circumstances the bug occurs with (ex. if it only happens to mermaid sims, only if sims are in the water, with a brand new save, etc.)

Hopefully with enough information, I'll be able to track down the issue and get it solved!

Thank you for your support and patience! 💜

Files

Comments

jodi_bunni

This is absolutely amazing, I can’t wait to go under with my mermaids 🫶🏾🫶🏾

Jeffrey Rahn

Love to see mermaids getting more attention. It'd be cool to link some kind of 'default' underwater set to the 'Dive Deep' option in Expanded Mermaids.

Anonymous Anomaly

So excited for this! The potential is staggering. I have several ideas, but the main one is i think would be neat is if there were diving spots that were "territories". Example; an area were mermaids like to play, so the majority of Sims that appear would be mermaids. You could do missions to get rewards and earn favor, maybe even meet the god or goddess of the sea. Same with Selkies, who could be more mischievous, or ghosts around a wrecked underwater ship.

Youssef Kadiri Yamani

THIS IS PERFECTION OMG!!! Seriously you have made literally the best mod ever I can't believe we'll finally be able to create our own underwater lots and use them, I don't even know what to even suggest since this already just too perfect but I would love to have the merfolk pretty much "live" underwater (which already looks possible🙏💖) and use various objects, like sitting on corals/rocks or maybe even chairs, hunt for fish underwater, maybe small interactions between the merfolk like swimming around together, also it would be just awesome to be able to use all the merfolk abilities from the base game and your mod underwater, my other suggestions would be adding sharks from the sims 3 if possible I remember you were able to implement them back when you were working on the first update of the Expanded Mermaids mod but unfortunately they didn't make it (probably because they were too complicated I guess which is totally understandable lol) and my personal suggest and probably my favorite would be adding the Kraken from the sims 3, idk if that thing can fit in the small worlds of the sims 4 as a free roaming creature but I don't mind if you can just reuse it instead as a power/spell for the merfolk or sea witches where they would summon the Kraken to eat a sim lmao😭 Anyway I'm just so grateful to you for making the sims so enjoyable for me, I'm literally going to re-download them just for your mod so thank you so much for all your hard work you are seriously the best!!!💖

Aimee Menard

Nice to see a use for the sea items that I've tried to use a bit in some of my saves. Placing them underwater is always a challenge.

LuHilton

Oh please cant wait! 😭😭♥️♥️

Brian C

This looks amazing and I'm so happy to see how far you've gotten with the diving. If you can, would you be able to fit woohoo options to the underwater cave or a cluster of tall seeweed or if they decide to woohoo under water they could ascend and its just splashing around the top of the screen. I figure the first two are more feasible. Again, youre amazing as always. Looking forward to this!

Christa Moris

So excited for this mod! it always bugged me so much that you couldn't explore underwater with the sims...that literally could be an entire new expansion pack...think lost world of Atlantis and everything. Love this so much and can't wait for the release!

Red_Crystal_Cat

Omg, this is so perfect! Even unfinished it looks so fantastic, I'm so excited! I would honestly love if it was possible for mermaids to live entirely underwater without any need to go to land, all needs met, and for it to be possible to create and raise a mermaid family entirely underwater. You don't need to add all of this, but some suggestions I have are Underwater woohoo, birth in an underwater crib, teaching the mermaid kids how to "swim" as a replacement for toddler walking, maybe keep the ability to sit/lay on furniture underwater? Playing ball underwater, Cooking underwater, maybe a water-specific stove with a hot vent instead of fire, the ability to invite your dolphin friends into the plot, heck maybe even become roommates with them, an underwater bathroom so you're not just...swimming in your own piss, if you want to touch My Pets Stuff you can recolor some rodents to be sea bunnies, leaf sheep, sea stars, etc. Underwater dancing for underwater parties, playing instruments underwater won't work so maybe water-themed instruments like seashell guitars and coral flutes? (But It's fantasy, who cares if they play the guitar underwater) I would love some elegant, seashell and coral looking furniture for my more sophisticated mermaids, but I also love plain seaweed beds, caves, and even straight up piles of sea rocks for my more wild sea monster themed characters. Maybe you can buy a water breathing potion if you want humans to breathe down there, maybe spellcasters can also cast it as a water breathing spell, and I would LOVE if the water marker can work for like one small room in a building, because imagine if you can make a mermaid zoo plot with a window to view into the water room as a sort of aquarium. Also a small slightly related suggestion for the mod down the line? The ability to become a selkie, even if it just reskins the mermaid form into a seal, I LOVE selkies. But these are just ideas, hope the mod goes well! You're my favorite sims modder and happy Pride Month!

Thriftlegsz

This is so fcking cool!! I love it here!! Thank you for all your hard work! 💕

Mickie Snider-Smith

This sounds amazing!!!! Can't wait to play this with my sea witch 🥰 thank you for your amazing work!! We're lucky to have you!

miklc

This is incredible - it's pretty much my most requested feature for the game given that merfolk are my favourite occult so I cannot tell you enough how excited I am for this - can I check whether whether there are any specific lot restrictions that the marker will need to be used on, just so I can plan where best to use in my save file when released? I'd love to see merfolk autonomously using the basking rock from your sea-neary set if placed down. It would also be amazing to have a merfolk specific animation for playing with the harp from your Divine Ascension mod if installed in the game - looking forward to seeing the updates!! :) EDIT TO ADD: Just thinking something else that would be good for this mod would be a lot trait or something to draw merfolk from the save file to a diving spot when you load up

Summer

I love you with my whole heart. You made my day.

Stepfon Ramon

A suggestion can you get back around to updating Divine Ascension it would be appropriate for celestial and Infernals to be able to take incorporeal(ghost) form even if they’re not Deities since they’re altogether supposed to be spirits.

Lys

You’re amazing

Kinga Dworakowska

This mod is amazing! I've been waiting for it for so long and I'm glad someone took a stab at it. My suggestion is to add more plants to the underwater lot, as it looks a bit empty. Have a nice day!

TVDU2024 Save

I loved it, it's really well done. I love the H2O: Just Add Water series, so the way they swim with their hands in front, or the way their tails slap, or how they swim together, or how a mermaid swims with a human by her side—I know I'm exaggerating, but... My inner child is screaming with excitement. Seriously, thank you so much and congratulations on your work. There are no words to describe how I feel about everything related to this mod. I don't understand English, so I apologize if there are any spelling mistakes.

TVDU2024 Save

I had an idea for the mermaids and wanted to know if something similar would be possible. Instead of them swimming on the surface using the current animation, with those frequent jumps out of the water, it would be interesting to see them swimming below the surface, in a continuous and more natural way. The inspiration would be the behavior of the fish that already appear in the game's ocean. The mermaids would be a few meters below the water, but still visible to the player looking from above. This would give the feeling that they are actually submerged, gliding through the water with more fluid tail movements, without needing to constantly emerge. The water in The Sims 4 is quite visually simplified, so I don't know if this would be technically possible, but I thought it could create a much more immersive and elegant look for the mermaids, especially in the open sea. Ideally, the mermaid's visibility to the player would be maintained while she swims below the surface, replacing the jumps with a continuous swimming animation.

Bruno Bisio

Hey, I figured out how you can make your basement actually be underwater: 1- Copy the outline of the basement directly above it on the ground floor using the wall tool. 2- Lower the ground-floor room so that it sinks underground. 3- Turn the walls into the shortest half-walls and remove the ceiling of the ground-floor room. 4- Use the pond tool to fill the hole that was created by lowering the room. 5- Remove the basement ceiling. You should have a fully functional underwater basement now.

Leona

Maxis should pay modders like you at this stage for keeping the game alive xDDD

VintageGamer89

I'm absolutely blown away by this! Your supernatural mods are fantastic. As cool as it would be for toddlers and infants to be in this update, I'd be content with just merkids. I'm more interested in toddlers and infants having little physical features like ear/ankle/feet fins and fish scales as skin details. Kinda like they can't control their transformation yet. It would be cool if T-E sims/merfolk could have underwater fights/sea witch duels. Maybe dancing? Kelp bush/underwater cave Woohoo options? Update the 'Jungle Adventure' puzzle objects, so we can build underwater ruins to explore?

Lily

Happy pride month !!! This is so awesome you are the reason I even touch mermaids. You da best <3

Ashley

I can't believe no one mentioned yet how absolutely gorgeous you look as Ariel! Your mods are the only reason occults are any fun in Sims 4; I love, love, love them. And this one looks absolutely amazing. My strongest suggestion is some kind of magical potion or food item that allows regular sims to breathe underwater. I'd love to see as many interactions/animations converted to underwater as possible, but my most unreasonably hopeful one would be dancing. I would looooove to waltz in an underwater mermaid ball.

Flynn

very excited! i DM'ed with my experience of the bug. i hope it helps!

VintageGamer89

Oh! Question, will non-mer sims automatically switch into diving gear before entering a dive area/room? Swimwear, mask, flippers, etc. Do you plan on making breathing related effects for the dive areas? Like "holding breath" or, not to be morbid, the drowning death? Definitely would be odd if any sim could swim here without a mask. Though it would be very funny if Vlad popped up fully clothed for a dive lol

Darksimz

This is CRAZEH ! Amazing work as always <3

BlueSimzy

This is INCREDIBLE! Very small suggestion. But maybe different swim styles? Like a h2o swim and a shark style swim (side to side). This is so incredible

Leyla Voigt

Maybe Im the only one who misses sharks from ts3 but would it be possible that we got those again spawning in this kind of under-water rooms?

程睿 马

i cant play this game without your mods, you are the best

Dylan Zalrian

There is a community that is kinda like cosplaying called the mermaiding community. Terms like merling that refer to the younger child and tween merfolk and terms like merboy/mergirl referring to the older teen to young adult age group. Mermen/Mermaid referring to the adults. My point being that scuba diving and freediving activities are not that limited by age. I think it depends on how close you were to water growing up. For me, I did underwater swimming at an incredibly young age as soon as I could swim. So, it just really depends. Not everyone has practically grown up near the ocean, much less spent time in the waves from the moment they could crawl. Mer terminology is something spell checkers struggle with but it isn't anything revolutionary. "Mer" is the prefix that modifies the root word and means "Of the Sea." Bit of a tangent, but "People", "Person", "Man", "Men", "Maiden", "Women", "Woman", "Boy", "Boys", "Girl", and you can probably see the pattern are all valid roots for "Mer" to modify for "Of the Sea" to create "Maiden of the Sea" or "Man of the Sea". Anyways, that aside, I'm pretty sure ocean activities like Snorkeling apply to children as young as 5 years old with potentially snorkeling around reefs away from the shore is viable for children around the age 10-11 years old. Ultimately, the viability of ocean activities at different ages is really going to be affected by where you were born and the environment you grew up in. Doing a preliminary search, the PADI legal limit is 10 years old. I'm sure things are different if you grew up as a Pacific Ocean Islander. I believe there are population groups in remote areas that are born on the ocean and have been documented to be able to see clearly underwater without goggles or eye coverage. Capacity for free diving in those population groups also seem higher. Hope this info helps.

M. Stilinski

First of all, you looked so beautiful as Ariel lol I think this will be one of the best Sims mods, along with all the others you've already made!! I think it would be great to add that when we clicked the "Go Dive" option, the Sim would go to the nearest water and do that H2O-type jump, and depending on the world where you dived, the aquatic world would be different, with different water colors, vegetation, fish, and you could have the same option if you were near a river or a lake, then the shape could be different, more rectangular and totally different, more swampy! I'm excited, for human Sims, a time limit for staying underwater!

Gin Sunshine

"Hi SpinningPlumbobs! I absolutely love your Fairies Mod, your work with occults is incredible. Have you ever thought about creating a dedicated Elves Mod in the future? A lot of players would love to have a proper Elven gameplay with custom needs, nature magic, and ancient lore, just like you did with fairies and mermaids. Thank you for your amazing work!"

Sam D.

Knocking it out of the park as Ariel! I had a thought in terms of being on land and getting to the undersea "room". Why not have an object that is like a large rock with a entrance -like to a "cave". Sims can crouch down and disappear into into the entrance as they do into other caves in game. A lot of caves on land near water will lead to water, so it would make sense, and we can landscape around it to blend it in. Very psyched for the mod!

Yokozii

so I'm so excited for this !! I've been using my big brain energy to think of some underwater things I'd love to have that can incorporate landwalkers and seadwellers lifestyles.. id like to see underwater heat vents or volcano vents with smoke and bubbles. hot lava vents would be sick. floating jellyfish. floresecent corals and anenomes for the 'ocean floor' maybe a mini sea cave that has slots for coral and crystals. im thinking like subnautica rocky sea hills with metals and underwater tunnels as wall decor that sims swim through. undewater plants! i love the cartoon MER the mermaid had a sea garden lolol maybe use the ingredients from the sea witch mod, could be sea-plants to harvest. sea games for sims and mermaids to play like dolphin racing, who can swim fastest, seashell digging, napping underwater floating positions, sea slugs / shrimps as pet costumes! or pets as mermaids

Miley

I love you 🥹

Sandro Ciani

Awesome ! can't wait it to be available !

Shian McClendon

I think this would be so amazing to have in your mermaid expansion mod. It would be awesome if u can find a way to included underwater bassinets and toddler bedding. Maybe even able to create "mermaid pods" (a group of family or friends of merfolks) and can overseer or rule within that Pod. (Example: become the ruler of Sea/Ocean, Merfolks or etc). So it can be like some kind of underwater mermaid royalty or pack. Would be so cool to have! Sorry if it seems alot and impossible for some of this. Anyway cant wait for the release; regardless with or without these changes.

Sabrina Aposaga

I LOVE THISSSS thank you for ur service omfg

ang

Hello, SpinningPlumbobs! I watched your underwater diving module trailer, and it looks fantastic. I am a Chinese localizer, and I can provide localization translation for your module. However, I am unable to send you a message. Could you please tell me how I can contact you

Lexa N

When island living was dropped, I was sooo disappointed that is was nothing like the sims 3 island paradiso. Mainly, because of the underwater world was missing and house boats. I am seriously so excited for this mod!! It looks amazing

SimsDynasty

This is AMAZING!! I've been a long supporter of the Expanded Mermaids mod and can't wait to see this update whenever it's ready. So excited for the future of this mod and to see your hard work!! ❤️