Once in a world, press F3 on your keyboard. This will bring up a menu, on which you can see
"

• Disable Console"
  Press F8. This should bring up another menu, showing a mouse. Click the box to the left of "Disable Console" to enable it.
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  Once completed, press F3 and F8 again.
  Then, you can press ~ or Enter to bring up a box in the bottom left that you can type in.
  
  
  

if I put ITEM, that means put the name of desired item. If I put #, put number of desired items. If I put X Y Z, put coordinates.
For the sake of this list, I will NOT include event commands.
For this list, I will do something like this:

example cheat command
what example cheat command does

example cheat command
what example cheat command does

example cheat command
what example cheat command does


So on so forth. Let's begin:

item ITEM #
Adds specific amount of said item to the player's inventory.
If the item has a space in it, consider it one world (Stasis Rifle becomes stasisrifle)

clearinventory
Clears player's inventory.

spawn ITEM #
Spawns a specified amount of a certain object in front of the player.

cure #
Cures player and creatures in specified range of Curar.

infect #
Infects player and creatures in specified range of Curar.

playerinfection #
Changes the player's infection level. 5 will cure the player.

sub cyclops
Spawns the Cyclops infront of player.

sub aurora
Spawns the Aurora behind the player.

sub escapepod
Spawns Lifepod 5 Behind the player and warps them into it.

filterwater
Causes all Water Filtration Machines on the map to create a Large Filtered Water.

filtersalt
Causes all Water Filtration Machines on the map to create Salt.

vehicleupgrades
Gives player all common vehicle modules.

seamothupgrades
Gives player all Seamoth modules.

exosuitupgrades
Gives player all Prawn suit modules.

exosuitarms
Gives player all Prawn Suit arms.

spawnloot
Spawns: Quartz, Copper Ore, Silver Ore, Salt Deposit, Gold and 4x Metal Salvage.

toolsloot
Spawns: Repair Tool, Seaglide, Flare, Transfuser, Propulsion Cannon Stasis Rifle and attempts to spawn a "BuildBot".

madloot
Spawns: Survival Knife, Habitat Builder, 3x Battery, 4x Computer Chip, 5x Creepvine Sample, 10x Titanium and 10x Glass.

bobthebuilder
Enables:
fastbuild
unlockall
nocost
fastgrow
fasthatch
radiation
and adds a Habitat Builder, Scanner, Survival Knife and a Repair Tool to the player's inventory.

resourcesfor ITEM
Provides resources for any specific craftable items.

ency ITEM
Unlocks a specific data base entry.
The entry name is case sensitive and requires exact spelling with no spaces.

ency all
Unlocks all blueprints, even ones not ingame yet.

damage #
Sets damage multiplier to player's choice.

instagif
Toggles instagif mode.

invisible
Creatures will ignore the player completely.

filterfast
Reduces the time Water Filtration Machines take to filter.

fastscan
Reduces the scanning time when using the Scanner.

fastgrow
Plantable flora will grow within a few moments when placed in any type of planter.

fasthatch
Eggs will hatch within a few moments after being placed in an Alien Containment.

fastbuild
Allows the player to build modules in an instant of a second with the Habitat Builder.

nocost
Toggles unlimited, free use of the Fabricator, Habitat Builder, Mobile Vehicle Bay, Vehicle Modification Station and Modification Station whether the player has the needed items or not.

noenergy
Toggles power usage for all vehicles, tools as well as the Seabases.

nosurvival
Disables the player's food and water requirements.
Removes sustenance value on items.
Only applicable for Survival and Hardcore modes.

oxygen
Gives player unlimited oxygen.

nitrogen
Toggles longer underwater time and adds the factor of decompression sickness if not careful.

radiation
Disables radiation.

fixleaks
Fixes the Aurora's radiation leaks in the generator room.

leak
Creates leaks inside every Cyclops on the map.

flood
Floods every Cyclops on the map.

damagesub
Damages every Cyclops on the map.

destroycyclops
Destroys every Cyclops on the map.

vfx cyclopssmokeeffect #
Generates the Cyclops smoke effect. Can be toggled from values 0 to 1.

bubbles
Spawns several bubbles (air) around the player.

seaglide
Spawns an unpowered Seaglide in front of the player.

dig #
Removes all terain around the player in a sphere with a diameter of # meters (max value: 100).
This command puts a severe strain on the gameplay performance.

unlock item
Unlocks a specific blueprint.

unlockall
Unlocks all blueprints.

lock item
Locks a specific blueprint.

unlockdoors
Unlocks all doors in the Aurora and Precursor Bases.
Does not apply for sealed doors which need to be cut with the Laser Cutter.

freedom
Changes game mode to chosen type.

creative
Changes game mode to chosen type.

survival
Changes game mode to chosen type.

hardcore
Changes game mode to chosen type.

day
Sets it to day.

night
Sets it to night.

daynightspeed #
Sets the day/night cycle speed multiplier (default 1). A # of "2" would be a day/night cycle twice as fast (shorter day and shorter night). A float such as 0.1 will make the day/night cycle 10x slower.

cinematics
Toggles animation for the player.

debugsound
Toggles sound.

entreset
Reloads all assets of the game (except for terrain).

gamereset
Resets the game, including the player's inventory and position, to when it was last saved.

farplane #
Changes your viewing distance. 1000 is default.

fog
Toggles in-game fog.

fov #
Toggles player camera zoom (5-60), 60 is default. Different types of lens framing such as flip, upside down, telescopic effect, etc., are found in the values of 5 to 500,000.

freecam
Allows you to freely leave your character and roam the terrain, even fly through solid objects. Use the command again to go back to your character. (WARNING: Very sensitive movements, cannot open menu or inventory while in freecam.)
To manipulate freecam movement, use shift to accelerate. Pressing the numbers 1-5 also appears to change the speed at which you move using shift.

fps
Shows FPS.

nobloom
Removes bloom. Game restart needed to re-apply.

noshadows
Removes shadows. Game restart needed to re-apply.

printbiome
Shows on screen what biome the player is currently in.

sizeref
Spawns the "Wasabi One" diver. Can be used as a size reference. Must be looking at terrain.

speed #
Sets the game speed multiplier (default 1). A # of "2" would be 2x gameplay speed. A float such as 0.1 will slow gamespeed to 10%.

target
Toggles target debug.

schoolfishai
Toggles the AI of a Shoal of Fish

vsync
Toggles VSync.

vr
Available VR options: None, Stereo, Split, Oculus, Morpheus.

biome BIOME
Teleports the player to a specific Biome.
Biome:
safe
kelp
kelp_cave
grassy
grassy_cave
mushroom
koosh
koosh_cave
jellyshroom
sparsereef
grandreef
dunes
mountains
moutains_cave
deepgrand
bloodkelp
underislands
smokers
inactivelavart
islands
tree
lostriver
lavazone

warp X Y Z
Warps the player to the coordinates of their choice.

batch X Y Z
Warps the player to the centre of a batch of their choice.
Batches do not use the same co-ordinate system as the warp command.
x = 12, z = 12 is the centre of the map.
y = 18 is sea-level.

warpme
Teleports the player to the Cyclops, a Seabase, or Lifepod 5 depending on which the player last entered.

goto PLACE
Teleports the player to a specific location.
Example:
goto aurora
Teleports the player to the ramp leading into the Aurora's belly. Not recommended pre Aurora explode event.
Aurora
WARNING- Teleporting into the Aurora's rooms may cause the entities to not load. It is recommended to go into the Aurora the normal way.
genroom
Teleports the player to the Aurora's generator room.
cargoroom
Teleports the player to the Aurora's cargo room.
exoroom
Teleports the player to the Aurora's exosuit room.
Degasi Bases
base1
Teleports the player to the Degasi seabase on the Floating Island.
base1a
Teleports the player to one of the mountaintop Seabases on the Floating Island.
base1b
Teleports the player to one of the mountaintop Seabases on the Floating Island.
base2
Teleports the player to the abandoned Seabase in the Jelly Shroom Caves.
base3
Teleports the player to the abandoned Seabase in the Deep Grand Reef.
Wrecks - It is advisable to use coordinates for wrecks locations.
wreck1
wreck2
wreck3
wreck4
wreck5
wreck6
wreck7
wreck8
wreck9
wreck10
wreck11
wreck12
wreck13
wreck14
wreck15
wreck16
wreck17
wreck18
wreck19
wreck20
Precursor Bases
gun (Quarantine Enforcement Platform)
gun_inside
gunmoonpool
gun_Elevator_Enter
gun_Elevator_Exit
mountainteleporter
prison
aquarium(The containment for the sea emperor)
antechamber
lostriverbase [WARNING: MAY SPAWN YOU STUCK IN A WALL.]
lavacastlebase (Thermal Plant)
lavacastlebaseinside
Alien Warp Gates
mountainteleporter
mushroomforestteleporter
lostriverteleporter
cragfieldteleporter
Escape Pods
escapepod27 (Lifepod 4)
escapepod28 (Lifepod 3)
escapepod29 (Lifepod 2)
escapepod30 (Lifepod 19)
Scatters (Random piles of Aurora debris)
scatter31
scatter32
scatter33
scatter34
scatter35
scatter36
scatter37
scatter38
scatter39
scatter40
scatter41
scatter42
Unknown
juvenileemperor1 (Grassy Plateaus)
juvenileemperor2 (Bulb Zone)
juvenileemperor3 (Grand Reef)
juvenileemperor4 (Northern Blood Kelp Zone)
juvenileemperor5 (Crag Field)

spawn
Respawns the player a small distance away. Good for getting un-stuck.

randomstart
Teleports the player into Lifepod 5 and respawns Lifepod 5 at one of its initial spawn point locations at random.

kill
Respawns the player instantly inside the lifepod with inventory intact. Useful as a "teleport" feature. Not recommended on Hardcore game setting.

Hopefully you enjoyed this guide!

(Feel Free to leave commands I missed out, commands that don't work, or feedback in comments!)