All these commands must be typed into the Quake console in order to work properly; you can access it at any time by pressing the ~ (tilde) key.

GOD
God mode on/off 

GIVE H (#)
Gives health number specified

IMPULSE (1-10)
1 to 8 and 10 gives corresponding weapon (10 is axe); 
9 gives all weapons and ammo

IMPULSE 255	Quad damage power-up 

IMPULSE 11
Gives you a rune (type four times for all four runes)

GIVE (1-8)
Gives weapon 1 to 8 (without ammo) 

MAP (ExMx,START,END)
Go to map E (1-4) M (1-8), START, or END 

NOCLIP
Walk through walls and objects mode on/off 

FLY
Fly mode on/off 

CHANGELEVEL (ExMx)
Change level with playerŐs current characteristics

CROSSHAIR
Toggle aiming crosshair on/off 

R_FULLBRIGHT
Set game to full brightness 

NOTARGET
Invisible to monsters 

R_DRAWORDER
See through certain structures 

GIVE (S,N,R,C) (#)
Gives ammo specified (Shells,Nails,Rockets,Cells)

RECORD
Record a demo 

PLAYDEMO
Play a demo 

STOP
Stop recording a demo

COLOR (#) (#)
Change player's shirt and pants colour respectively 

SCREENSHOT
Take a screenshot and save it in PCX format 

EDICT
List information on current level 

FOV (#)	
Perspective warping thing 

R_DRAWFLAT
Toggle texture on/off 

R_WATERWARP
Turn underwater warping effect on/off