What If The Air In Subnautica Was Toxic?

Subnautica may be an underwater game, but you're still constantly limited by oxygen. It's usually no problem to swim to the surface and refill, but what if the planet's air was toxic? Could you still find the cure and complete the main storyline without ever going up to the surface? Let's find out.
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[@EphiTV]

Oh hey, a new Subnautica video. That was unexpected. You can thank the mysterious algorithm for recommending my old ones a lot lately. Anyways, I'm still cooking up some other big videos. Stick around or find me on Twitter if you want to catch 'em: twitter.com/entropy_phi

[@midteirgamer]

Btw your able to breathe underwater by chilling at 0m the game thinks your above water but you are still underwater

[@EphiTV]

Sure, but that takes all the challenge out of the run

[@midteirgamer]

True true

[@eg9847]

Thank u mysterious algorithm

[@ishaangupta4166]

I mean there is a reason alterra sent you to make a phasegate on that planet and the degasi crew went there

[@DBWhale]

I dont think many people realize how lucky we are that 4546B has an atmosphere similar to Earth's

[@minecrafttree1676]

The chances of that though. Well actually the chances of Earth having this much oxygen was already fairly low.

[@DBWhale]

@@minecrafttree1676 ayup, and life formed around it. But for another planet to replicate it, now that is crazy

[@minecrafttree1676]

@@DBWhale and then the fact that it had to be not too close or to far or to close to it's sun. And then so much more.

[@DBWhale]

@@minecrafttree1676 its crazy

[@thecubers_2]

I REMEMBER YOU

[@JediSteve-J3-]

* literally burning alive* "Without a scratch"

[@dwightyoung2291]

Burns, not scratches

[@user-vr5fr]

Shut

[@mariosfunadventureswithlui6197]

Tis but a scratch

[@bullymaguire745]

Merely a flesh wound

[@jparis3431]

Burning Alive? Scorch.EXE has entered planet 4546B

[@El_Hornio_II]

Fun fact about the Sea Emperor babies: they actually spread out to multiple different spots on the map, although you won't find more than one in one location

[@a26lolheart]

They evn grow up to full size, which is really cool to see

[@pwr4]

Well not FULL FULL size cus um yeah... over 200m long and like what 4 of them too? ​@@a26lolheart

[@KerbalChris]

Subnautica without going into the ocean, don’t wanna get sick

[@des363]

Thats actualy impossible

[@schmoogledoink2738]

If you define the ocean as a body of water, there is a glitch where you can walk on the floor of the sea and the game thinks you're on dry land

[@kimbaldun]

Subnautica more like Landnautica

[@VectorJW9260]

The only time you actually need to get into the water is to BUILD the rocket, due to a glitch that makes the game think you're in a base while you're underwater.

[@theperson3606]

Every game can be toxic, just make it multiplayer and 8 year olds

[@talenspear3028]

you forgot a key component Tryhards

[@DR3_34D]

@@talenspear3028 👍🏿

[@cheesejam1373]

Yall forgot to add a way to headshot

[@Espartanica]

Or make it Hollow Knight

[@tubeit1002]

@@talenspear3028 so true

[@jcplays3842]

Hehe that’s funny I just finished the no vehicle vid after getting it recommended to me

[@ResaAcerfin]

Me too

[@thebighitter6354]

Yep

[@dragonsflame3777]

You know, there is actually a mod that implements this, essentially it tricks the game into thinking when you are surfaced you are actually underwater, meaning your air goes down, even on the surface

[@FreemanicParacusia]

Masochist mode. Isn’t there also a mod where you have to be a certain depth underwater when the ship blows up to be shielded from its radiation?

[@MarianzYT]

Deathrun mod i suppose

[@Whyiseverythingthesame]

I'm sitting here wondering why he didn't put the mobile vehicle Bay in that giant moon pool at the gun.

[@-Wayla-]

Imagine creating Cyclops there and it just clips through the edges

[@raidenmetalgear3572]

Still very convenient that it's exactly the length of a cyclops

[@elingustavsson6398]

Same

[@thegoofiestofguys]

@@raidenmetalgear3572 yea because your supposed to park your cyclops there

[@layldoesstuff]

@@thegoofiestofguys You are not supposed to, you can but initially it was for the architects, they made the cyclops likely why’d there be so many fragments of it ? The degasi crew couldnt have made so many cyclops and crash them everywhere

[@williamwashburn7665]

I love how this run assumes that despite being a diver with a huge air tank holding your breath in open air isn't possible but in water yeah

[@peternavin3188]

Yeah haha you literally have air tanks why does it work 1.2km deep but not on the surface

[@williamwashburn7665]

@@peternavin3188 yep

[@williamwashburn7665]

@@peternavin3188 yeah probably didn't want to work out that system and just wanted a fun challenge with an interesting premise

[@arcosprey4811]

Well you'd still run out of air. You couldn't refill the tank in the atmosphere.

[@williamwashburn7665]

@@arcosprey4811 what just refill it with filtered air as per the rules of the video

[@ignaciodelavega4631]

Alternative lore correct title: What if the bacterium reacted with the planet's atmosphere.

[@matthewevans4895]

You can actually make the air toxic in the deathrun mod

[@aslanmerioles1218]

Subnautica became free on PlayStation for all users as a play at home sale which explains why the yt algorithm loves it all of a sudden It was announced early in the month and was released March 25th

[@ben7445]

when i paid 30 dollars for it

[@hernanrv]

@@ben7445 F

[@theguywhoasked5861]

@@ben7445 rip us switch gamers

[@user-qh6ii7qt6m]

@@theguywhoasked5861 i mean I'd hate to even play Subnautica on such a low power console tbh

[@theguywhoasked5861]

@@user-qh6ii7qt6m i played with busted ass controllers and still finished

[@seaseaseaseaseaseaseasea]

This would be a really cool mod. Like, the air being CO2 or acidic, forcing you to have a limited time outside if you dont have a suit/mask built specifically for going outside.

[@gloriadavis4462]

They actually considered getting rid of the underwater tablet several times I found it on my first day

[@jackiegibson5077]

"while we wait for below Zero" "'any day now'" Subnautica Devs "Haha release date go brrrrrr"

[@EphiTV]

The timing was impeccable

[@robknight666]

So when will it be released?

[@namiellethemasterofthetorr7236]

@@robknight666 sometime in May I think

[@bh309dc4]

@@robknight666 05/14/2021

[@fluffiestgamer51]

@@bh309dc4 or 14/5/21 if you use DD/MM/YY

[@collin2097]

what if this is how the other people actually died, they tried goin up for air and died

[@anders7416]

but it isn't toxic lol

[@theangrypotato2.031]

I don’t like bashing theories but... god there was zero thought here.

[@thefluffyboxy._.1943]

They died because either their pods sunk too low and they couldn’t get up in time, the Carnivores found them and killed them, their pods malfunctioned leading to death, or they landed in a bad area like the thermal vents. The air wasn’t bad, it was the environment

[@Xakaion]

@@thefluffyboxy._.1943 its the warpers. THERES NO WAY YOU COULDN'T FIND REMAINS

[@Xakaion]

an exception are the 2 in the lifepod and they exploded

[@adventurousgamer9435]

You could just say that as long as you stay in the atmosphere for less time than your o2 tank, so your breathing from your o2 tank, so i count you as a win

[@2016ly]

when i first saw this i thought it said: If Subnautica was toxic.

[@Dienow3xw]

The air pipes are actually a godsend when you have an abundance of titanium. They help you explore deep/unavigatable locations without having to find your way to a natural air source

[@Zonic3451]

Yeah, maybe like a seamoth? And if you’re going deep enough that you can’t use a seanoth, then you’ll use the cyclops, because if you go that deep you’ll have a cyclops.

[@dijital4801]

@@Zonic3451 they're useful for exploring jellyshrom cave before you get a seamoth, or if youre doing a no vehicles run

[@Ivorysage632]

2:17 I actually learned sumthin from this

[@kubadychton05]

hey, i missed these subnautica videos, this looks fun so far! edit: most certainly was fun

[@buzzmast3r546]

4:51 "The collision there has always been a little wonky" _proceeds to swim straight into the big purple death stinger_

[@infiltrate6807]

Wouldn’t the air tank have filtered air inside it, making it so you can stay above the surface for a while?

[@dav1rus_567]

Your videos got recommended to everyone now because submautica is free on ps4, so a LOT of ppl is starting to play and watching a lot of subnautica videos like me

[@gun_violence_gaming]

I bought it on ps4 like 2 months before it became free :'(

[@San-kp3qu]

mmannn i missed those subnautica challenges. thanks for bringing them back.

[@claytonreeves150]

Thank you for doing this for science and so that no one else has to.

[@ryleyrobinson9960]

Hey I helped

[@gamerluke6248]

@@ryleyrobinson9960 lolllll

[@DeltaOfNothing]

I’m very glad you revisited the game, I loved the old videos! I subbed already because the other vids are good too, hopefully this vid will bring in more people like me

[@yourbritishnarrator1148]

Dude I just came across this channel and loving it

[@elileaf3409]

Quick tip for other people who wanna do this run, place a vehicle bay in the moon pool with some finicky jumping you can get on and create a vehicle

[@frosty.o2424]

all of the subnautica vids have done really well so I say keep it up, but also do what you want to

[@xtremegamrr3719]

This is actually very well made! Just made my first subnautica vid. Your so good at making subnautica vids keep it up!

[@onesubnautician7833]

Idea: Can you beat Subnautica with no air tank (45 oxygen)?

[@Dumify]

Well Yes , but Actually Yes

[@sclubbydoo6424]

Hey! So, I found you through your subnautica videos, then watched your oblivion videos. Now I'm subscribed. Youre pretty entertaining, keep up the good work :>

[@diggingdog7228]

When I actually did my run of this, I was too much of a baby to live without vehicles, so I just pushed the vehicle fabricator into the docking bay of the big gun facility.

[@veggiedog3845]

This is my first time watching your videos and love your videos already!!

[@theveryfunnymyth]

I like to imagine that the toxic air is only toxic while you’re infected, like the Khhara infection reacts with some space chemicals and kills your lungs to death.

[@vationic9502]

Finally! Thank you so much for more subnautica! I was afraid that it was dying out!

[@bremenwoltjen4693]

I saw your steam post about your oblivion challenge, loved it, subscribed.

[@EphiTV]

Thanks for coming over! It's hard to reply to comments on Steam posts because it doesn't notify people

[@NeneKappa]

a mod where the surface just doesn't give you air would be really cool for this

[@BBaaaaa]

Hey, there is a mod for this! Called 'deathrun' from what i know

[@BroccodiIe]

You could get vehicles if you put the MVB inside a moonpool. It's also technically possible to build the rocket that way, and using base pieces to keep it from floating up.

[@eldritchblaaa9395]

Im about to attempt the toxic air vegan run. And this is going to be a life saver.

[@DQBlizzard_]

I haven't played this game since it literally came out. Its amazing to see how much its changed

[@lewissmith5759]

I love challange run channels. I feel like this channel is gunna blow up

[@bobofalltrades7863]

This is cool always wondered what a subnautica challenge whould look like

[@emmelyneloignon-couillard7712]

Thay was an amazing run, love the idea !

[@Traveller281]

Nice! I'm actually doing this as well. =D I do plan on completing the game though so I made some special rules like I can go to the Aurora and alien bases once (but get everything I need done in one go, so for example only go to the enforcement platform once I can disable the gun and only go inside the facility) and I can only built the rocket once I have done everything else, in other words, to finish the game. But yeah: no islands, no vehicles, no going up for air, all warps gates except the one underwater one are a no go and alien bases with air are not eligible for that saving breath. But other than that, I've had a "normal" run: scan a bunch of stuff, investigate all biomes, built big bases, visit all lifepods, figure out all the underwater degasi stuff and so on. And since I haven't played the game in a while, I don't actually remember the map that well which makes things slightly tougher. For example at the start it took me a real while to figure out which direction Aurora was at from my lifepod cause I'm used to peeking up and looking at it for orientation. It has certainly been... different. In a good way! And lot's of fun.

[@Jakestillplays]

I saw that map and realized how bad the map I'm using was. Checked the description not expecting to find it, and it was there. Good on you for crediting that.

[@EphiTV]

There's so many subnautica maps out there and they're mostly all lacking in some major ways. That one is the best I've found so far.

[@SpiderconPrime]

One of the ways ive done this challenege is you can come up to the surface, but your on the same timer as underwater

[@blue7595]

This is my first time watching your channel and I love the vid

[@vectorohyeah318]

I really like your challenge runs

[@ghostfarrer9464]

just for kicks n giggles, you should do a vegan run, with the air idea but altered. you can download a mod to make the surface air toxic but not lethal, so you will take damage but not die right away, atleast until you get a re-breather. or set it so that you breathe from your tanks while on above sea level then when your tanks run out you die.

[@theangrypotato2.031]

How is not breathing oxygen vegan?

[@hotlavatube]

I was goofing around with the prawn suit grapple and managed to tip the launch platform to a precarious angle. The ship still launched. I wonder how far you can push that between using those sticky floater fish, grappling, and driving the cyclops up onto the angled platform. Maybe you could build the ship entirely upside down. ;-)

[@pw5687]

well you had to make the cyclops to make the shield generator, which means you went above air to make it. also the rocket is ovbiously in the air but otherwise from those points it was a good interesting video

[@jefffeta5730]

there is no shield gen or cyclops

[@zoologist_stan8333]

Actually it would be possible to get vehicles. There’s actually no restrictions on how deep you can place the vehicle bay, so you might be able to (I haven’t tested this) bring the resources and build the vehicle before it reaches the surface

[@brickbuilder-fh7yt]

You could probably place it in the giant moonpool

[@ReincarnatedGhost1]

Man. I gotta try this challenge. Beat Subnautica without a vehicle and that includes the seamoth cause technically that’s a vehicle. Slow going but doable. One, you can use a rebreather to go deeper. Two, you can upgrade your tank to go even deeper. Thirdly, I forget what it is but it’s the thing you use to ascend to the surface fairly quickly. Very doable and no creative mode. I need to do this challenge

[@communistskeletonpiss]

Not me using your direction depth and distance from lifepod in the vid to try and calculate coordinates for where certain places are

[@drx737]

for some reason subnautica gives me nostalgia even thought i didn't get to far

[@howdoinamemychannel6767]

Delete this you’re giving them ideas

[@slegder9273]

Hater alert

[@howdoinamemychannel6767]

@@slegder9273 I’m not ha- What?

[@intoxicatedgoat9179]

@@slegder9273 bruh chill

[@akajitsu4445]

@@slegder9273 Your Either Stupid Or Brain Dead

[@oliverhadzi-boskov59]

@@akajitsu4445 They’re both

[@pug8714]

Riley staying under water thinking the air was toxic, went to the surface to reliese that the air was safe

[@SpaceCadet0023]

I always use the Blood Kelp entrance (it’s also the only one I have used.).

[@hamsammichman1389]

EphiTV i think you can trap the mobile vehicle bay in an underwater cave, so you might have been able to make vehicles

[@josephcola9662]

I feel like the player character would be able to hold his breath long enough to tap a few buttons on the vehicle bay console, but otherwise, this was really cool to watch... Now that I think about it, is it possible to put a vehicle bay in the Sea Emporer's habitat? Because then you could make vehicles in there because the air is filtered, and pilot them out the portal.

[@EphiTV]

I haven't tried in the habitat, but in most spots like that it won't let you build vehicles because there's insufficient space.

[@Polygonzzzzzzz]

@@EphiTV I don't doubt ye could make a seamoth/prawn, but it isn't like they would survive the depth in time to add depth modules anyways

[@haka-katyt7439]

@@Polygonzzzzzzz Actually you can put a normal un-modified seamoth into the Sea Emperor tank and be fine

[@davidtimchenko4478]

Yaaaaaay! New subnautica video!

[@thecat293]

This is very entertaining, very good sir

[@TeamKyroCanAnimateFR]

i can actually assume that in the architect base, yknow the one with the way into the ocean? You might be able to make a seamoth using it, not a cyclops but it might be possible for a seamoth to be made in it.

[@zJustARandomPerson]

If I ever got a cuttlefish I'll definitely put in the bioreactor to see what happens so I am the sadist

[@alexgabriel9711]

Mans doing these challenges when im here not knowing how to beat the game

[@dogwithcoke8370]

Here is basically how to beat the game: start how most would normally start, repair tool, habit builder, seaglide, etc. grab a seamoth and a radiation suit and go to the aroura, (quick tip) the best way to avoid the reaper leviathans is to hug the surface and squeeze in through a gap in the aroura. Get the usual things you get there, propulsion cannon blueprint, prawn blueprint, aroura figure, and the Neptune rocket plan. Fix the drive core and book it out of there, do the sequence of events of the sunbeam grab and scan the tablet for a blueprint. grab a prawn suit with a high level depth module and a few ion cubes and go to the lost river by any entrance you feel. Dodge the sPoOkY gHoSt and go to the inactive lava zone hit up the disease research facility and scan the blue tablet and grab it grab a kyanite crystal on your way out for another tablet get to the primary containment facility and place an ion cube in each of the portals and collect some plant samples of each one go back to the containment facility talk to mama bear get the blueprint for hatching enzymes make them activate the last teleporter hatch the eggs get the emperor leviathan nut and go to the gun platform get stabbed and shut the gun Down build the rocket and (optionally) build an aquarium with an infected fish in it to fuck over altera leave the planet and beat the game

[@alexgabriel9711]

@@dogwithcoke8370 geez. Ok Neptune rocket here i come lol

[@flydan4449]

I just started playing subnatica and watching this gives me hope that I will complete it

[@5bigdonkey]

I just found you from your oblivion spell casting video!

[@Pluhborger]

Such a soothing video

[@JPP900]

Definitely won't be able to do a run like this in below zero.

[@-OmegaMania-]

I mean the easiest solution is that you'll get something like a radiation suit but different ish, like a gas mask and it would just filter the gas which I would think would be pure CO2, the gas mask would just work like an oxygen tank underwater, you'll have an oxygen meter and you would only be able to stay at the surface for a limited amount of time.

[@wheatley-uz7mm]

You're kinda right

[@a3-radio]

2:22 This man just hit the giant tube coral and got table coral and my mind was just blown

[@EphiTV]

The more you know

[@user-ds5jd5zy2d]

He is man of Focus, commitment and sheer fckin will :)

[@morgana285]

Smell ya later to the mother leviathan as she died IM ROLLING

[@Mr_kamin]

finally new video !

[@Krom-fk3me]

“Especially ones that are easier to navigate” ESPECIALLY ONES THAT AREN’T CLOSE TO A REAPER LEVIATHAN

[@brockburton1998]

You deserve more subs

[@Arturo8645]

your bases are really creative xD

[@annakimberly1733]

At 2:10 there's either a cooked or cured hoverfish... how dare you end a hoverfishes life

[@bohdandete8705]

At first i thought you would come up with science of how it would affect whole world of Subnautica. lol

[@N.i.g.h.t.m.a.r.e.z]

You could've accepted the Vehicle bay because Brain Coral, Ice Bubbles, Oxygen Plant, Titan Holefish provides oxygen without being at the surface so you could've said those floaters could've been using those types of oxygen

[@ductapu]

I never watched sunautica or something and this gets in my reconmedations...

[@phantomking5341]

You could make a mod where you would use o2 on the surface but when you run out you start being affected by radiation to make it more fair

[@lanercb7393]

It would of been better if you could breath the air above water but for a period of time before you start taking damage

[@slothstudios_]

idea: the air had a worse version of the virus so he needed the cure to go on dry land

[@The_Lodge]

I'm new so I don't know what challenges you did but can you beat subnautica without power cells or batteries?

[@jakubcoufal4544]

btw purple tablets can be find - 1. in the water cave under gun island 2. in cave in the gun island 3. on the foating island in the degasi base 4. on the hill on the gun

[@Alex-ng3mg]

Me doing a challenge but can’t upgrade his seamoth because I don’t where the moonpool is: Funni

[@Grumpitectual]

dang it he said unfiltered air so im sad bc i wouldve been like "ur always in air inside of the dive suit

[@bexta3965]

You could have deployed The vehiclebay in that one alienfacility or in the primary containment unit

[@fluffypawninja7636]

There's a mod that adds a new game mode, it's basically hardcore but you cant breath the surface air without a pump and the lifepod sinks after 3 deconds

[@aliciabahr2579]

6:24 that sea dragon scared me

[@foldervtolvr]

I wish I could code because I would make a mod where you can get air from the surface, just whenever you get air from the surface, it hurts you. My lore would be that 4546B has a atmosphere of pure oxygen. Because the air tanks add CO2 to it to create air but you can’t breathe it or you die.

[@Razak-zo4vv]

You can build vehicles underwater if you deploy the mobile vehicle bay under a moonpool

[@roefsteennis3374]

this was literaly an idea for my first ever youtube video lol. Not saying that you stole my idea

[@erindufour6039]

I have not watched the full video yet but you can make submarines in the big alien moonpool inside the gun.

[@bullymaguire745]

Hey Ephitv could you use the underwater entrance to the gun base for the vehicle bay?

[@EphiTV]

Depends on if there's enough room that it allows you to build. Haven't tried it, but I figured the run was more interesting without vehicles anyways.

[@sharkgamer2741]

Fun fact, you can use a mobile vehicle bay in a moon pool.

[@umbreyond2118]

You can put the vehicle bay in a coral tube to build the seamoth and prawn suit idk if I would work for the cyclops though