The /give command takes an item name as its first parameter - these names are listed here - and an amount as its second.

The /set command takes one of the following variables as its first parameter, and the value as its second:

hunger
thirst
blockhealth
frequency
fireworklife
anchor
bonushunger
bonushealth
health
time
oxygen
timescale
durability
gametime
gamemode
bonusthirst
fps

The /reset command takes one of the following variables as the first parameter (value is optional):

achievements
interactables
characters
buff
timescale

The /landmark command takes a landmark type as its first parameter, or else "clear" as its first and a landmark type or "all" as its second. Landmark types are:

Landmark_Small
Landmark_Big
Landmark_Pilot
Landmark_RadioTower
Landmark_FloatingRaft
Landmark_Boat
Landmark_Test
Landmark_Vasagatan
Landmark_Balboa
Landmark_CaravanIsland
Landmark_Tangaroa
Landmark_VarunaPoint
Landmark_Temperance
Landmark_Utopia

The /spawn command takes a name as its first parameter and an amount as its second:

StoneBird
PufferFish
Llama
Goat
Chicken
Boar
Rat
Shark
TEST
Bear
MamaBear
BugSwarm_Bee
Pig
StoneBird_Caravan
ButlerBot
Rat_Tangaroa
Boss_Varuna
AnglerFish
PolarBear
Roach
Puffin
Dolphin
Whale
BirdPack
Turtle
Stingray
Hyena
HyenaBoss
NPC_Annisa
NPC_Citra
NPC_Ika
NPC_Isac
NPC_Johan
NPC_Kartika
NPC_Larry
NPC_Max
NPC_Noah
NPC_Oliver
NPC_Timur
NPC_Toshiro
NPC_Ulla
NPC_Zayana
NPC_Vanessa

The /tp command takes "raft", "treasure" or an object of interest as its first parameter, or else two player names as its parameters to teleport the first to the second. Objects of interest are:

MamaBear_Lure
MamaBear_Cave
Varuna_Boss_Floor_1
Varuna_Boss_Floor_2
Varuna_Boss_Floor_3
Varuna_Boss_WaypointHandler_1
Varuna_Boss_WaypointHandler_2
Varuna_Boss_WaypointHandler_3
Temperance_FightChallenge_RallyPoint
Utopia_Cogwheel_LiftJumpPuzzle
Utopia_Cogwheel_SmallJusticeScale
Utopia_Cogwheel_BigJusticeScale
Utopia_Cogwheel_BrokenElevator
Utopia_Cogwheel_DrawBridge
Utopia_Cogwheel_Stairs
Utopia_Waypoint_1
Utopia_Waypoint_2
Utopia_Waypoint_3
Utopia_JusticeScaleWeight
Utopia_BossOlofPart2
Utopia_HyenaBossAreaZone
Varuna_Boss_AreaZone_AllowedTarget
Varuna_Boss_HelperScript

The /show command takes either "landmark" or "treasure" as its parameter.

The /animals command takes "starve", "feed" or "changematerial" as its first parameter. It affect the animal under the cursor.

The /questitem command takes "clear", "check" or a quest item type below as its first parameter (and an amount as its second):

Vasagatan_Crowbar
Vasagatan_GreenKey
Vasagatan_BlueKey
Vasagatan_RedKey
Vasagatan_BoltCutter
Vasagatan_GasTank
Vasagatan_Lighter
Vasagatan_Bullet
Vasagatan_MechanicalPart
Vasagatan_BombWire
Vasagatan_FourDigitCode
Vasagatan_KeyCard
Vasagatan_Bomb
Vasagatan_Recorder
Vasagatan_CarJack
Balboa_WildBerries
Balboa_BrunosTool_Saw
Balboa_BrunosTool_Hammer
Balboa_BrunosTool_Wrench
Balboa_LightBulb
Caravan_ZiplinePart
Caravan_BatteryChargerPart
Caravan_KeyInfirmary
Caravan_KeyMayor = 24
Tangaroa_Tape
Tangaroa_KeyCard
Tangaroa_GeneratorPart
Tangaroa_Token
Varuna_MotherlodeKey
Varuna_CraneKey
Varuna_SpotlightPart
Temperance_Blowtorch
Temperance_ElectricalCable
Temperance_ControlRod
Temperance_ReactorKey
Temperance_SeleneGateKey
Utopia_KeyEntrance
Utopia_KeyPhase1
Utopia_KeyPrison
Utopia_Hammer
Utopia_DettoCode
Utopia_Cable
Utopia_CarbonDioxideCanister
Utopia_Harpoon

The /quest command takes a quest name is its parameter and tells whether the quest is completed.

The /raft command takes "unstuck" or "target" as its parameter. "target" sends the raft to the current receiver target.

The /weather command takes a weather name as its first parameter and "lerp" as its second to make the change gradual.

The /unlock command takes "character" or "all" as its first parameter (and the character index as its second).

Then /notebook command takes "all" or the note number as its parameter.

The /nuke command destroys the raft.

The /build command takes "foundation" as its first parameter, and the amount as its second.

The /camera command takes one of the following as its first parameter and the value as its second:

acceleration
deacceleration
maxspeed
mouselerp
target (takes a player name)
targetoffset

The /weight command shows the raft weight in the chat.

The /receiver command takes "force" as its parameter.

The /reflection command takes one of the following as its parameter:

on
off
follow
sphere

The /kit command takes one of the following as its parameter:

treasure
painting_redbeet
painting_tangaroa
paintbrush
resources
seedflower
flower
seed
armor
tiki
radio
cassette
hat
head
utopia
temperance
recipebowl
recipepaper
foodraw
foodcooked
buff
battery
playtest
fishing
trophyfish
blueprint

The /environmentlight command toggle environment lighting.

The /simulate command takes "pickup" (and a distance), "motorweight", or "interact" (and optionally "force") as its parameters.

The /cook command takes a recipe name as its parameter (you must be looking at a cooking table).

The /mark command sets a mark at the player location.

The /recall command teleports the player to the last mark.

The /worldevent and /worldeventstop commands take a world event type as its parameter:

Dolphins
Whale
Birdswarm
Turtle
Stingray

The /print command takes "worldevent" or "gametime" as its parameter.

The /hazmat command takes "true" or "false" as its parameter.

The /oldwater command toggles using the old water type.

The /bakeblocks command takes "true" or "false" as its parameter.

The /honk command honks every horn on the raft.

The /DestroyBlock command takes a radius as its parameter.