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Dialogue (Below Zero)

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A comprehensive list of all in-game dialogue, PDA messages, and voice lines for Subnautica: Below Zero, including standard alerts, crafting notifications, and story interactions with AL-AN.

Last refreshed May 18, 2026

Dialogue (Below Zero)

This article is about Dialogue in Subnautica: Below Zero. For information on this subject in the original Subnautica, see Dialogue.

Dialogue, in-game, is the act of someone (or something) talking. In Subnautica: Below Zero, there are many times where Dialogue will occur.

Below is a list of all Dialogue that can occur in-game.

Standard Dialogue

Actions

Log-128

ActionDialogue
Low on Oxygen"PDA: 30 seconds of oxygen remaining."
When Oxygen is almost depleted"PDA: Oxygen."
Dangerous Weather"PDA: Dangerous weather approaching, seek shelter."
Hunger reaches 20"PDA: Calorie intake recommended"
Hunger reaches 10"PDA: Emergency, starvation imminent. Seek calorie intake immediately."
H₂O reaches 20"PDA: Seek fluid intake."
H₂O reaches 10"PDA: Seek fluid intake immediately"
Body Heat reaches 20"PDA: Hypothermia imminent."
A Vital Sign Reaches NormalPDA: Vital signs stabilizing.
Picking up the Habitat Builder for the first time"PDA: Adding emergency shelter blueprints."
Scanning Seatruck fragments for the first time"PDA: Your chance of survival would be increased by constructing an under water vehicle."
First interaction with Sea Monkey"ROBIN: Some of the wildlife down here is very... grabby."
Passing 100m without a RebreatherPDA: Warning: Passing 100 meters. Oxygen efficiency decreased.
Passing 200m without a RebreatherPDA: Warning: Passing 200 meters. Oxygen efficiency greatly decreased.
Building a Vehicle in Shallow WaterPDA: Cannot build here; must be constructed in deeper water.
Unlocking a BlueprintPDA: New blueprint synthesized
Scanning a New CreaturePDA: New creature discovered
Powering a BaseHABITAT: Power restored. All primary systems online.
Entering an Unpowered HabitatHABITAT: Warning, emergency power only.
Entering a HabitatHABITAT: Welcome aboard captain
A Breach FormsHABITAT: Hull breach detected.
All Breaches are RepairedHABITAT: Hull integrity restored. Draining systems initiated.
Habitat Loses PowerHABITAT: Warning: Emergency power only. Oxygen production offline.
Entering a SeatruckSEATRUCK: Welcome aboard captain.
Seatruck Reaches Crush DepthSEATRUCK: WARNING: Approaching crush depth of {Crush Depth} meters. Hull damage imminent! Ascend ASAP!"
Entering A Prawn SuitPRAWN: Welcome aboard captain.
Prawn Suit Loses PowerPRAWN: Warning: Emergency power only. Oxygen production offline.

PDA Messages

PDA Log

ActionDialogue
Entering the Lilypad IslandsPDA: There is a large anomalous mass of rock that has broken away and risen above the surrounding terrain
Picking up a Ribbon PlantPDA: Ribbon plants contain electrolytic materials that can be used in energy storage.
Building a Snowfox HoverpadPDA: The Snowfox hoverpad will allow you to build, repair and customize the Snowfox. Now your vehicle can look foxier than ever!
Building a Prawn SuitPDA: The Exosuit facilitates mobility in high-pressure and zero-gravity environments, turning the wearer into a bipedal mechanical rock puncher — rock grub ingestion not required.
Building a SeatruckPDA: The seatruck is a modular aquatic navigation vehicle. For fun and function, additional modules can be attached to the back of the main cabin — or detached to evade predators.
Building a Cold SuitPDA: Made of tightly-knit kevlar microfiber and insulated with an alpine yoke around the neck and shoulders, the Cold Sult is designed to delay the onset of hypothermia.
Building a ThumperPDA: Used by miners and researchers to explore perilous environments, the thumper creates a steady source of noise that might repel unwanted creatures by amplifying collision soundwaves.
Building a Habitat BuilderPDA: With the builder tool, you can construct seabases from raw materials. Advising against exploring a frozen water continent without a base. No bed, no storage, no place to put a fabricator module, no fun.
Building a SeaglidePDA: The seaglide is a personal transportation device used for high-speed free diving Contains a built-in light and map.
Building a JukeboxPDA: The jukebox lets you listen to music in your base. No one said survival couldn't be funky.
Building an Alien ContainmentPDA: An aquarium just for looks, or your own personal sushi factory. You decide.
Building a Scanner RoomPDA: A scanner room will allow you to survey the surrounding region for anomalies and rare resources like copper and aluminum oxide. And titanium, if you need help finding it. For whatever reason.
Building a [Battery Charger](/wiki/battery-charger)PDA: Finally, a device that can put to good use those rechargeables lost to the back of catch-all drawer
Building a Coffee Vending MachinePDA: Ah, the sweet scent of dirty bean water.
Building an Exterior GrowbedPDA: The growbed lets you grow plants and vegetables, providing flavourful options for evading scurvy.
Building a Standard O₂ TankPDA: The standard oxygen tank can be upgraded for deluxe and VIP breathing.
Building a RebreatherPDA: The rebreather facilitates extensive free-diving by recycling air more efficiently at significant depths. Breathe the freedom.
Building an Air BladderPDA: If you are tired of hearing the word "oxygen," the Air Bladder provides a significant upward thrust to help you get to air faster.
Building a Pathfinder ToolPDA: The pathfinder tool emits a sequence of way-markers to mark pathways and aid navigation in both land and aquatic environments.
Acquiring a FlarePDA: The flare emits flames through the combustion of potassium nitrate and aluminium. Can be used to repel predators.
Building a Laser CutterPDA: The laser cutter has many uses—most of them laser-cutting. Use to open sealed doors and storage containers, and cut through ice bubbles, for an additional source of oxygen.
Building a Control RoomPDA: In the control room, you can change base lighting and colors, rename your base, and see information about power and structural integrity. But not the integrity of societal power structures.
Scanning a VentgardenPDA: The Vent Garden harvests geothermal energy to nurture the life that grows within.
Approaching a Shadow LeviathanPDA: Proceed with caution. A leviathan class creature is near.
Building a Spy PenglingPDA: Without Spy Penglings, scientists may have never discovered that Penglings incubate their eggs in small cave burrows, often alongside Thermal Lily roots.
Building a Tether ToolPDA: The tether tool facilitates instant travel to a paired seatruck teleportation module. lon aube required for use.
Building a Mineral DetectorPDA: The mineral detector can sniff out raw materials, potentially saving you hundreds of hours of searching.
Building a HeadlampPDA: The headlamp comes with advanced weather-resistant strap that can withstand volcanic heat or an ice age blizzard. A perpetual, hands free light source in even the darkest environments.
Acquiring an Ion CubePDA: Enough energy to equal a small nuclear detonation, stabilized and contained in a small cube. An ancient Architect invention, lon cubes can be used to power several alien devices.
Entering the Tree SpiresPDA: Rising temperatures detected in mineral-rich fissure below.
Entering the Thermal SpiresPDA: Mineral-rich crevices detected below. Geothermal activity detected. Caution advised.
Acquiring a BeaconPDA: Use beacons to mark traversed territory. Now with surface support. Use your Xenoworx PDA to show or hide the signals of your choice.
Approaching the Caldera in the East ArcticPDA: Inactive volcano detected nearby.
Approaching the Large Iceberg in the East ArcticPDA: Moulin in nearby iceberg detected: a hollow chamber typically formed by glacial melt.
Approaching the Large Iceberg in the West ArcticPDA: Hollow chamber in iceberg interior detected.
Crafting a Booster TankPDA: Equipped with only a booster tank, Dr. Felicity Aman once escaped the underwater acid tentacle forest on planet Alpha671.
Approaching the Stern Wreck of the Mercury IIPDA: Detecting stern of an astronautical Sol Transgov vessel nearby. Vessel name: Mercury II. Inoperative.
Approaching the Bow Wreck of the Mercury IIPDA: Detecting bow of an astronautical Sol Transgov vessel nearby. Vessel name: Mercury II. Inoperative.
Entering the Deep Purple VentsPDA: Significant geothermal activity detected below. Beware of high pressure and temperatures.
Acquiring a Water Purification TabletPDA: Combined with a frozen water source, water purification tablets can create drinkable water as you explore the snowy surface.
Building a RecyclotronPDA: This alien technology allows for the recycling of natural resource components without rinsing and sorting them into bins first.
Approaching a Tree SpirePDA: The nearby spires are substantial thermal vent structures, hospitable to coral formation.
Building an Aromatherapy LampPDA: The aromatherapy lamp by Quasico can reproduce over seventeen thousand natural scents captured from hundreds of worlds.
Building an Executive ToyPDA: The antigravity pendulum of this executive meditation tool spins indefinitely by conserving momentum and recycling energy.
Acquiring a ThermosPDA: A refillable flask to store dispensed contents from the coffee machine. Or tea. Or any other hot drinkable liquids you may find.
Crafting a Spicy Fruit SaladPDA: Fruit salad does not traditionally involve leaves, but at least it is nutritious and warming.

Arrival

ActionDialogue
Starting Game"CAL: This is the farthest I can bring you on company space bucks, Robin.<br>You sure you want this? The research isn't everything.<br>ROBIN: It is to me. And Sam. I need to know what happened.<br>CAL: The meteor storm--<br>ROBIN: I can use it for cover from Alterra's Eyes.<br>CAL: Gonna miss you, Robin.<br>ROBIN: I'll find my way back.<br>SHUTTLE COMPUTER: Approaching 4546B. Surface temperature is-<br>Drop-pod deployed.<br>SHUTTLE COMPUTER: Welcome to 4546B. Enjoy your stay."
Explore Crash Site"ROBIN: Holy smokes! That did NOT go as planned! I should find a way into the water, and get to the Drop Pod."
Enter Drop Pod"ROBIN: Found the Drop-pod!"
Listen to Lillian´s Memo"ROBIN: Well Sam, I guess I might as well gather some resources before starting my search. Hope the radio tower´s as easy to spot as Lil said."
Grab any resource"ROBIN: Shoud be able to use this"
Crafting a Scanner"ROBIN: Alright, I have a scanner!"
Have something stolen by a Sea Monkey"ROBIN: Some of the wildlife down here is very... grabby."

Sanctuary

ActionDialogue
Explore Deep Twisty Bridges"UNKNOWN: ...---... ...---... ...---...<br>ROBIN: That sounds like a distress call.<br>PDA: Transmission of unknown origin. Source of transmission depth calculated at approximately 200 meters."
Finding an Architect Artifact or Lil's Research after receiving SOS"PDA: This alien technology exhibits a data signature that strongly correlates with the previously recorded distress call.<br>ROBIN: Interesting! I'll bet I can use this new data to identify where that call was coming from."
Entering Sanctuary"ALIEN FACILITY: Sanctuary power critical.<br>ROBIN: Hello, is someone there?<br>VOICE: In a matter of speaking. We are running out of time."
Inside Sanctuary"ROBIN: What is all this?<br>ALIEN FACILITY: Seeking emergency storage medium.<br>ROBIN: I can help you better if you show yourself.<br>VOICE: If we could show ourselves, we would not need storage.<br>ROBIN: You mean you don't have a physical presence? Are you one of them? An Architect?<br>ALIEN FACILITY: Storage medium identified.<br>VOICE: We will be lost unless we find a new host. Can you help?<br>ROBIN: Can you use my PDA for storage?<br>VOICE: You are not with the group from before? Your cybernetic components bear their signal.<br>ROBIN: Alterra? (laughs) No! My equipment is uh... borrowed.<br>VOICE: It will have to do."
Main Chamber"ROBIN: How long have you been stored here?<br>VOICE: Longer than hoped.<br>ALIEN FACILITY: Warning: Sanctuary power critical.<br>VOICE: Our data can be downloaded from the terminal. We may speak more once the transfer is complete.<br>ROBIN: Yes, okay. Hurrying."
Initiating Transfer"ALIEN FACILITY: Storage medium accepted. Brace for transfer.<br>ROBIN: Brace?<br>[Cry of alarm, pain.]<br>What's happening?<br>ALIEN FACILITY: Transfering.<br>ROBIN: [Groan of pain.]"
Initiating Transfer"ROBIN: [Moan.]<br>ALIEN FACILITY: Transfer complete.<br>VOICE: How do you feel?<br>ROBIN: Why do you sound like you're inside my head?<br>VOICE: The facility identified hospitable capacity within your cerebral cortex.<br>ROBIN: You ARE in my head!? I OFFERED YOU MY PDA! GET OUT.<br>VOICE: Oh no-- Does your kind perceive a boundary between cybernetic and organic components?<br>ROBIN: My mind is not a component!<br>VOICE: You sound angry. We will allow you a moment to process.<br>ROBIN: Don't you go silent on me.<br>VOICE: ...<br>ROBIN: HELLO???<br>VOICE: ...<br>ROBIN: This isn't happening.<br>VOICE: ...<br>ROBIN: This is not happening.<br>That's the explanation. It's not happening."
Return to Drop Pod"VOICE: We understand this arrangement is undesirable to you.<br>ROBIN: You're not real. Go away.<br>VOICE: To go, we require a suitable body for transfer.<br>ROBIN: Why do you keep saying "we"? How many of you are there?<br>VOICE: One of us and all of us. We do not think of ourselves as individual, distinct.<br>ROBIN: Why don't you start by telling me who you are?<br>VOICE: You may append your seed code to my species designation. Please call me AL-AN.<br>ROBIN: My whole life, I've been dying to meet a sapient, spacefaring alien up close, and you're telling me your name is ALAN?<br>AL-AN: Is it insufficient?<br>ROBIN: No, it's fine. It's perfect. Where are you from, Alan?<br>AL-AN: Your kind calls us "Architects".<br>ROBIN: The precursor race!? But what are you doing here?<br>AL-AN: That... is a long story.<br>Perhaps you will prefer to focus on the contruction of a new storage medium to which I may transfer?<br>ROBIN: Yes, fine. Absolutely. How do we get you out of here?<br>AL-AN: I have added the information to your databank. You will need to find the necessary comp"

Note: The final dialogue entry appears truncated in the source material.

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