Press ~ and enter one of the following codes to activate the correspond cheat function:
Toggle God mode: god
All weapons: allweapons
Maximum ammunition: allammo
No clipping mode: ghost
Flight mode: fly
Disable flight and no clipping modes: walk
Breathe underwater for 999999 seconds: amphibious
Return to life: reincarnate
Set gravity value: setgravity [number]
Set game speed: setspeed [number]