Subnautica Cheats: Console Commands for PC

Enable the console Press F3 for the debug menu, then F8 for mouse control, and untick Disable Console.
Run a command Press Enter to open the console box, type a command, and press Enter again to run it.

Filter cheats

Game modes

Cheat	Command	Effect
Creative mode	PC`creative`	Switch to Creative mode: no oxygen, food, water or resource needs
Survival mode	PC`survival`	Switch back to normal Survival mode
Unlock all blueprints	PC`unlockall`	Unlock every blueprint in the game

Survival needs

Cheat	Command	Effect
Free crafting	PC`nocost`	Craft and build with no resource cost
Unlimited power	PC`noenergy`	Remove power costs for vehicles, tools and bases
Unlimited oxygen	PC`oxygen`	Give yourself unlimited oxygen
No radiation	PC`radiation`	Turn off radiation damage
Instant plant growth	PC`fastgrow`	Make planted flora grow to full size in seconds

Items and spawning

Cheat	Command	Effect
Add item	PC`item [name] [amount]`	Add a specific item to your inventory
Spawn object	PC`spawn [name] [amount]`	Spawn an item, creature or object in front of you
Teleport to biome	PC`biome [name]`	Teleport to a named biome

Movement and time

Cheat	Command	Effect
Teleport to coordinates	PC`warp [x] [y] [z]`	Teleport to a set of coordinates
Free camera	PC`freecam`	Detach the camera from your character and fly it freely
Day/night speed	PC`daynightspeed [number]`	Change how fast the day/night cycle runs; 1 is normal

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How to enter cheats in Subnautica

PC

Press F3 to open the debug menu.
Press F8 for mouse control and untick Disable Console.
Close the menu, then press Enter (or the tilde key on some versions) to open the console box.
Type a command and press Enter again to run it.

How to enable developer mode in Subnautica

On PC, press F3 in a loaded game to open the debug menu in the top left.
Press F8 to free the mouse cursor, untick Disable Console, then close the menu.
Press Enter to open the console box, type a command and press Enter to run it.
Repeat the F3 step after every restart, since the setting is not kept.
On PS4, Xbox One or Switch, pause and press the four shoulder buttons together to show the Developer tab instead.

Game Rant: Subnautica, all console commands and what they do

Do cheats disable achievements in Subnautica?

Game Rant says the console ships switched off because using commands prevents you from earning achievements. The page's own warning is that turning the console on disables Steam achievements for that save, so keep a separate save if you are still chasing them. Game Rant: Subnautica, all console commands and what they do

Compatibility notes

Which releases these codes apply to, and where one behaves differently. Each note links to the source that documents it.

PS4, Xbox One and Switch Game Rant says console players get no typing box: pausing and pressing four shoulder buttons together (L1, R1, L2, R2 on PS4; LB, RB, LT, RT on Xbox One; R, L, ZL, ZR on Switch) adds a Developer tab whose Commands, Give and Teleport sub-tabs run commands as buttons. Game Rant: Subnautica, all console commands and what they do
PC, every restart Game Rant and GameWatcher both say the Disable Console setting does not stick: after restarting the game you press F3 and untick it again before Enter opens the console. Game Rant: Subnautica, all console commands and what they do
Story and save commands Subnautica Commands warns that countdownship really blows up the Aurora, clearinventory deletes your inventory for good, and entreset could do irreversible damage to the save, so it advises saving before you use them. Subnautica Commands: full console command list
oxygen command Subnautica Commands notes that oxygen will not save you from drowning if you run it after your oxygen meter has already hit zero. Subnautica Commands: full console command list

FAQ

Do Subnautica console commands disable achievements?

Yes. Turning on the console disables Steam achievements for that save.

How do you open the console in Subnautica?

Press F3 for the debug menu, then F8 for mouse control, untick Disable Console, then press Enter to open the console box.

Is there an infinite oxygen command in Subnautica?

Yes. Type oxygen into the console to give yourself unlimited oxygen.

Can I undo the unlockall command in Subnautica?

No. Some commands, including unlockall, can't be undone by re-entering them, so back up your save first.

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References: Subnautica Commands: full console command list; Game Rant: Subnautica, all console commands and what they do; GameWatcher: Subnautica console commands and cheats.