The MOST ADVANCED Submarine mod yet! Subnautica SEAL Submarine

The SEAL submarine is a massive new Submarine added to Subnautica, developed by the SEEL modding team! It has a massive interior with space for Nuclerar Reactors, Aquariums, a docking bay for your seamoth and PRAWN Suit, & more!
SEEL Team Discord server: / discord
These awesome people are working on this mod:
• Sophia (22staryds)
• Eldritch (eldritchcarmaker)
• Eel (lee23)
• Lilly (nocontextlilly)
Join my Discord server!
► / discord
Follow me on twitch for streams every week!
► / aci_tv
Get some Aci merch!
► teespring.com/stores/aci-merch
Become a member:
► / @aci_yt
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Music by Epidemicsound (www.epidemicsound.com):
- And The Sky Shall Unfold 3 - Johannes Bornlöf
- Gaining Season - Lupus Nocte
- The Flamingo Song - Johan Glossner.mp3
- Adrenaline Push - Bonkers Beat Club
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My SocialMedia:
Twitter ► / aci_tweet
Instagram► / aci_inst
Twitch ► / aci_tv
Tellonym ► tellonym.me/aci_nym
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You have a video idea? Leave a comment! :D

[@Aci_yt]

Join the SEEL-Team Discord server here: discord.gg/P7JDGsYzD7

[@hitrogen375]

well, in my opinion, the seal is a really great submarine, and to bring it to perfection, I would like to see 1) the possibility of docking transport from your other mods. 2) so that we can build wall structures (like a water purifier). 3) increase the size of the rooms and possibly round them off. I saw how the design of the seal looks from the middle, and I see a lot of free space, I think it would be possible to connect the inner part with the "decor" it would add a lot of space, it also has a place under and above the control room. 4) Add more improvements to the seal's control interface (like a hologram, the ability to turn on lights, weapons, protection, cloaking) maybe it would be better to add improvements in the form of these improvements. Because the seal supports 8 improvements but only 4 are used.5) I am not sure, but is it possible to make it possible to build partitions between the walls if they will seem "very big" (if you add point 3)

[@Aron25746]

Aci, the one to break a mod without trying 💀

[@Herobrinegrn1]

He is like Subnauticas Grian.

[@mr.boomguy]

@@Herobrinegrn1 Now the mods need to be Aci proof xD

[@Herobrinegrn1]

@@mr.boomguy I think the mod devs will be pillimg weeks of all-nighters just to do that.

[@TheGlitchedOne5205]

They should be gargantuan proof…

[@PorchPotatoMike]

The sub I want is the Cyclops XL. A Cyclops that is a little longer that can dock a Seamoth and a Prawn at the same time.

[@moonlord8725]

Atlas?

[@raphaelbeaumont3739]

That would be great, currently I had to pick.

[@ShadeSlayer1911]

Unfortunately, I think for something much larger than a Cyclops, the entire map would have to change for it to make sense. There's not enough space for something much better. You start running into not being able to maneuver around properly.

[@raphaelbeaumont3739]

@@ShadeSlayer1911 Oh right, that's a disadvantage. Cause something larger than the cyclops needs bigger tunnels and well although the void is gigantic I am NOT in a million years ever going there. (Unless I need to but that's very unlikely considering that there's barely anything there. Apart from huge space for your base and leviathan threats. So no thank you.)

[@GrubbJunker]

@@ShadeSlayer1911 My hope is that Subnautica 2 (2025) is open enough to support large subs. Cyclops feels cramped to me. I want a BIG ASS MONSTER that I can take Entire bases along with me, aquariums and everything.

[@DamageMaximo]

I love the fact that the inside of these modded Submarines are getting better, remember when it was just cubes?

[@matthewmat9539]

Oh... I see... 12:45 "That is adorable, I kinda want that as a plushy" Yes... Aci felt the power of Snom! Good. Very good.

[@Dunossauro1]

veeeeeeery good but should he understand the wingedsnom power?

[@Gast4307]

Snom

[@j-rw8975]

Snom

[@jmmarksman73]

The docking using the same tech as the propulsion cannon it seems! Super cool

[@_snowylil]

Just to note on the aquarium, the fish don't fly out!! I was, in fact literally watching the developer code that bit to make them *not* do that lol

[@xenno8496]

The back docking bay for the Seamoth reminded me of the Freelancer from Star Citizen and I ADORE that secret hidden Snom 10/10

[@tiiel_h8151]

Wow a fellow citizen from the Verse… that’s rare!!

[@Aci_yt]

Now that you mention it, yeah it does! :D

[@xenno8496]

@tiiel_h8151 o7 indeed it is

[@kabob0077]

Yo, this sub has Snom? 11/10 right there.

[@terminalvelocityrunner2202]

I feel like Seel Team’s name is a possible reference to the Seal Teams of the US Navy. In particular probably Seal Team Six, likely the most well known one. They’re basically an elite special forces unit. It’s probably spelled differently to avoid legal or naming issues. Regardless this mod is so awesome! Thanks for showing it off!

[@KarlismiSN]

its the first letter of all of the devs names

[@22staryds92]

But what if I told you I just like seals a lot

[@_snowylil]

@@KarlismiSN But partially reversed lol

[@SkyeBerryJam]

Seel is a pokemon

[@22staryds92]

@@SkyeBerryJamvery true and we just ignore the comment above it didn’t happen

[@broodsauce2214]

Bro, it looks like sideways rocket with boosters on the side! Can confirm engineers would come up with an acronym like that so....this B...I...T...C...H sick AF!

[@ReggieMidknight]

I do believe that little hidden thing you wanted a plushie of you can get one. It's a Pokémon named Snom and they are adorable

[@GCTSK]

This is literally all my subnautica sub dreams come true. I'm not sure if it's already in the recipe or not but I think they should put ion cubes in the recipe. Also they should make 2 "big base pieces" possible so you can run alien containment and bioreactor together. Also I think you should be able to put the thingy to craft seamoth and prawn upgrades (I don't know what it's called) in the sub. They should also add a 4th speed that is emergency speed and make the other 3 normal.

[@22staryds92]

It’s planned to make 2 base pieces possible it only isn’t a thing cause it’s buggy

[@eldritchcarmaker]

It’s already been fixed, it was just fixed after the files were given out so youtubers don’t have the most up to date version yet

[@MrNomad-0912]

Definitely! And I think you were thinking of the vehicle upgrade console. That would be cool

[@feralprocessor9853]

A Cyclops plus an apartment room = the SEAL

[@juanmasg5517]

12:55 that's a pokemon lmao (Snom)

[@Cosarandominc1989]

Cant wait to combine it with all other vehicles mods

[@trevorhaddox6884]

Imagine this in the Alterra Hub modpack. Mobile factory base.

[@firdanharbima6997]

we might finally get the Atlas out of concept

[@ZexyObserver]

I'm probably in the minority but I think the vehicles are great. the Cyclops can be kitted out just about any way you like from a mining ship, rescue, luxury yacht, freighter, or research. So other subs in it's class would basically be "The cyclops but shaped different" The only addition that makes sense to me is the big atlas that actually needs a crew to operate. But that only makes sense in a multiplayer game.

[@GrayderFox]

Yeah, it's a little hard to make a new niche with a sub...the big advantage I can see to the Seel here is that you have a lot more room for storage, with a trade-off that it's a lot, well, bigger. You'd definitely need a void to go explore into with this boi.

[@rovelfox7832]

What I'd like to see more of in terms of vehicles are more medium sized subs that are cheaper/more specialized than the Cyclops. I've always felt the cyclops is a bit too big, but I am pretty claustrophillic. Of course, the problem would be finding a use for such a submarine that the existing ones don't already cover. Maybe give it a small room that has some sort of utility such as being a mobile scanner room or something. I suppose the sea truck fits this area a bit, but I feel that often just becomes an awkward mobile hallway.

[@ShadeSlayer1911]

@@GrayderFox Yeah, I'm thinking the crater by itself is too small to really use this thing too much. Void exploration, like a fully fleshed out Void map and biome with its own various leviathans would be cool to explore with this thing. Maybe we could even get a new seamoth class vehicle to do more precise and up close exploration in the Void. I'd really like that.

[@NiCoNiCoNiCola]

I think they should add a warship

[@pyrov7244]

1:25 that face is perfect

[@ythegameritaisthebest]

12:55 that's a pokemon, it's called snom

[@eliasskoglund9544]

That thing you wanted as a plush is a pokemon. Its name is snom.

[@terrapinflyer273]

That panoramic view... It's beautiful! And the upper deck behind it. Very cool.

[@Emme_Umbra]

12:50 that’s snom from the Pokémon franchise!! It’s very popular because of its cute design! And yes you can buy a plushie of it

[@4ainik4aevarov50]

The little creature hidden as an easter egg is pokemon named Snom. The cutest little thing out there

[@siljorfag]

Aci: "Can we build a Large Room inside? No? what a missoportunity 😢"

[@pumkinheadman4320]

I think that the submarine not having an option to build windows makes good sense really, since structural integrity is important if its to be taken to really deep waters.

[@rizecekcz4795]

Cool mod, and for the call of the void mod, it looks so cool, i realy want it to become a full fledged mod, definitely keep up the good work

[@YaBoiBoris]

MY LORD WHY IS IT SO PERFECT??? I will say that the aquariums no-hatch system feels a bit cheap, but if it's for design reasons and they just couldn't get It to work I understand that

[@spawnofsean]

Funniest video yet! Just please keep making these while we wait for the SEEL sub

[@pollination3695]

Great video man❤

[@bruhlol190]

YEAHHHHHHHHHHH THE FIRST COMPLETE SUB. DONT forget about the Atlas development it’s still going

[@ultraphoenix95]

English is not my first language, what does B.I.T.C.H. mean? Edit: I realised right after posting it...

[@elichester7666]

I cant wait untill my dad builds my pc so that i can get my hands on subnautica mods!❤❤ you have taught me everything i know about subnautica and including good mods, lore, how to play, how to find the lava zone, so many things! I dont know why i havent subbed yet but im going to! Thank you Aci!

[@Wardendaniels]

I want to be able to pilot a submarine with friends. Like imagine how cool it would be if you’re piloting this massive submarine and there’s a fire somewhere. Just tell one of your friends to go extinguish it. Maybe you’re also being attacked by a massive sea creature, well one of your friends can load torpedos and take care of it. Just sounds really fun

[@user-nx6zk1yg8m]

11:20 - I think when a submarine sinks, it’s more implosion than explosion.

[@Xx__xX-bn7ch]

0:38 THE POOR SNUB

[@SkeletonLand368]

9:46 “Oh my god!” “Oh! Okay, don’t do that!”

[@coreupptedruby8937]

This one fits so well in call of the void when I first saw it I was like did aci make this, but yeah

[@King.C0]

The snom Easter egg in the sub was so cute😂😂

[@hitrogen375]

well, in my opinion, the seal is a really great submarine, and to bring it to perfection, I would like to see 1) the possibility of docking transport from your other mods. 2) so that we can build wall structures (like a water purifier). 3) increase the size of the rooms and possibly round them off. I saw how the design of the seal looks from the middle, and I see a lot of free space, I think it would be possible to connect the inner part with the "decor" it would add a lot of space, it also has a place under and above the control room. 4) Add more improvements to the seal's control interface (like a hologram, the ability to turn on lights, weapons, protection, cloaking) maybe it would be better to add improvements in the form of these improvements. Because the seal supports 8 improvements but only 4 are used.5) I am not sure, but is it possible to make it possible to build partitions between the walls if they will seem "very big" (if you add point 3)

[@Warenye-zp8bu]

Gathering a petition for him to add doors to the moth's compartment

[@trevorhaddox6884]

I was honestly expecting the "high quality animation" to just be the Titan sub implosion.

[@kittenpixl]

would love to see big submarines like this in call of the void like bigger than the one you currently have shown so far.

[@Angliscwer93]

I hope they put in docking for both the Seamoth and Prawn. A sub that huge, it's a no-brainer.

[@codieneshark2718]

i love how the link to the mod is in the description!

[@Aci_yt]

Not to the mod, but to the discord server where it will be available once it releases!

[@lexibyday9504]

I'd love somone to make a game focussed on fulfilling this craving for giant submarines. Almost like a space game but set underwater instead.

[@taizepottery7026]

Would be cool if you can park 2 seamoths or 2 prawn suits inside if your playing with the multiplayer mod

[@RamuneNeptune]

It’d likely be very janky if it could store more than 1 vehicle at a time, and janky isn’t exactly the feel developers want their mods to have

[@22staryds92]

Not multiplayer compatible

[@clapseal]

finally a submarine fit for me

[@22staryds92]

Is that a fellow seal enjoyer???????????????????????????? I did name it after the animal.

[@clapseal]

@@22staryds92 omg that’s so cool i love finding other seal enjoyers in the wild

[@nikkistewart4295]

We need this in the game hire them bro they know how to make good transport services

[@user-qb7bs7cy1m]

It feels like the atlas and the wasp had a baby

[@raviexthegod]

Imagine using this with the Hydra in the call of the void mod you're working on? Just use the SEAL to get to the first 2 islands and get between the void and the shallows, allowing you to have your base come down into the void with you so you're more engrained with it. Hell, maybe even have an integration with the 2 mods so that not even the Cyclops can get down there, make the precursor tech in the SEAL a part of how you get into the void

[@bettysouthern5856]

Lots of fun coming up in 2024 stay tuned!

[@22staryds92]

(Modeler for this) it’s supposed to work with 2 base pieces but it’s buggy in the KZbinr release and doesn’t work for them.

[@RamuneNeptune]

No way big fan love your work, also I’m going to ruin your work with my own mods, I will literally put my I LOVE RAMUNE sticker on every wall

[@22staryds92]

No that’d be great to have bonus mods with the mod

[@Ants_Tatran]

im pretty sure you can build wall compartments in the dock area, the walls are litterary the shape for it, like at least a vehicle console

[@Aci_yt]

Ohh i missed that! Gonna try that out for sure ^^

[@22staryds92]

The vehicle console will be built in and also a fabricator somewhere

[@22staryds92]

I don’t think we’ll be adding the ability to put them in certain places in there just because it seems like a hassle code-wise for not a ton of payoff

[@Ants_Tatran]

oh allright@@22staryds92

[@FriedFanta]

Now what we need? A big submarine that can contain 1 cyclops? A submarine named ATLAS?

[@user-dv9px4er9f]

I agree the missed opportunity with the bio reactor and alien continent and I that a desalination plant on board

[@CyberMinerCrafting]

Oh hey, I was just told about you on the Subnautica subreddit! I found your pre-release time capsule and got sad when I realized it was supposed to have ion power cells in it cuz they're not valid time capsule items anymore...

[@Zekrozma3]

0:39 hello there

[@st-oh-rm]

so cool!

[@sektoraa9465]

I thing that docking port is worse than robota arm like in docking room in Base, I thing that it isn’t good idea(connecting our technology with alien technology), amazing video

[@jonathanX01]

3:45 - Seals are carnivores

[@bouncybubble]

My favourite part is the lil Snom

[@peppinospaghetti336]

we focused on the atlas but now we have seen all the new maybe smaller but great designs

[@nathanvosburgh718]

where do you get these mods from? i dont see them on Nexus or the one Discord Server im on for modding

[@alvinbjorkman6049]

This mod is cool, but I cannot wait for that custom submarine that Aci made.

[@SkyeBerryJam]

Seel is a pokemon, SEEL TEAM would be a reference to navy seal teams

[@user-ui9yq8ue1d]

Aci the mod breaking man

[@agerothn]

So a sub powered by breaking down fish.. would we call that fish-in power? :P

[@Elite.Astro.Toilet.8084]

I feel like if the submarine was in the game I would definitely living it I will have adventures with it I will go to the deep dark I will go to the void where the gargantuan is and activate my secret weapon the huge laser that can kill anything in one shot takes a while to recharge

[@BananaHoovyJ.Rabbit]

No offense, but this comment makes you sound nine years old. Just something about the way it's written...

[@dariusfilip4695]

​@@BananaHoovyJ.Rabbityeah

[@Jurassicore]

​@@BananaHoovyJ.Rabbit their name is tv man... what did you expect.

[@user-vm3fe3wx9r]

what

[@dariusfilip4695]

@@Jurassicore LMAO

[@Vertex--]

"leviathan class submersible detected"

[@kidsphonestart4524]

Congratulations you have found the Pokemon snom

[@shadownight5345]

i love how the seal as a cursive s in the word seal

[@AidilPlayzEdits]

"Believably Incredible Thermonucleic Compartmentalized Hull" Can be abbreviated to B.I.T.C.H. lol

[@adamsrealm]

I hope they're planning to detail the exterior... It looks very plain and amiturish at the moment

[@dreamcat9469]

That plushi is a pokemon called snom

[@mikeymikeygaming]

If the sub dies the precursor door In the moonpool should fail, and flood the submarine

[@benjaminseelking9483]

Snom. That Easter Egg, is a Snom

[@dragong33k]

12:52 that is a snom and Nintendo sells plushes of them

[@hugothibodeau6137]

the white creature under the ladder is called Snom. it is a pokemon fron the sword and shield game

[@LeinadFromMars]

How does this interior look like it's in UE5??? The graphics are insane!

[@rayanachchane1575]

I think the Death Animation and Dialogue should be like this Fires Spread Around The submarine slowly floods The Ai tells you to go board the emergency seamoth If you board it the submarine should epicly explode If you don't board it it explodes and you die

[@Zekrozma3]

The thing in the vent is the pokemon Snom

[@juliogonzalez07]

Holy mother of leviathans

[@ollysee3656]

Have you heard of the D.A.D submersible?

[@aneasteregg8171]

Can't have two because a Bioreactor and an Oculus tank would be too powerful!

[@EladioPerez-vo6zs]

I hope this will appear in subnautica ps4

[@cantstopplayinghalo8005]

Imagine in subnautica 3 searching a wreckage of one of these things.

[@TheDivineDemons575]

how do i download the mod cuz im in the discord server i cant find it so where is the mod in the discord server???

[@renrenoneinavat6221]

SNOM IS LIFE

[@ak4pro689]

12:56 there are plushies of that it's a pokemon called snom

[@leviathankraken]

Mods will break when you re-open a save file. You have to exit the game completely and reload it

[@22staryds92]

Ideally they don’t but

[@EnriqueMoralesSanchaz1962]

Bro, nice mod

[@pinaallen2367]

So no one's talking about how its description is a broken-down acronym that spells of the word

[@FarbrikStrom]

7:39 i Had the same Problem

[@VIPSquad564]

He's a reaper leviathan

[@Me-sy2lb]

yeah

[@humanuserperson6082]

I think they should have added the atlas submarine, but the seal is cool too

[@jamp6167]

Imagine getting a bunch of friends on with multiplayer. Going into creative and making the perfect seal-sub. Going back into survival and ONLY living in it, no base, just seal

[@eckoratt3692]

1:35 thats what she said

[@rododendron85]

it's somehow bigger on the inside than the outside

[@jlbernhard100]

Can you help me download the Cyclops laser canon mod for legacy bc I keep tying and it won’t work