To enable cheats, press F5 on your keyboard. This will bring up the console

Cheat What It Does
goto Teleport to a location (using coordinates
pos Prints your current player position
exploremap Reveals the entire map
resetmap Erases your map exploration progress
killall Kills all enemies around you
tame Tames specific animals around you
hair Removes your hair
beard Removes your beard
location Spawn a location
raiseskill [skill] [amount] Increases a specific skill to a certain level
resetskill [skill Resets a specific skill's level to 0
freefly Lets you fly around the world
ffsmooth Adjust the smoothness of the freefly camera (eg ffsmooth 0)
tod Change the time of day. 0.5 is mid-day.
env [env] Sets up a debug environment
resetenv Resets the debug environment
wind [angle] [intensity] Lets you adjust the wind to a specific angle or strength.
resetwind Resets the wind entirely
god Makes you immune to damage.
event [name] Start a specific event
stopevent Stop the currently ongoing event
randomevent Starts a random event
save Immediately saves the game
resetcharacter Reset all character data
removedrops Removes every item drop in a particular area
setkey [name] Sets a new key
resetkeys [name] Resets a specific key.
listkeys Lists all keys
players [nr] Adjusts the difficulty of content according to the number of players.
dpsdebug Toggles the DPS debug overlay