god - God mode (immortality)
give health - Full health
notarget - The enemies won't shoot you
noclip - You can go straigh through walls
give all - Gives all items
give ammo - Gives ammunition
debug 1 - Turns debug mode on (0 to turn it off)
developer 1 - Turns developer mode on (0 to turn it off)
ufo - Fly mode
kill - Suicide
map - Loads the map you want
cvarlist - Gives a list of all cvars in the game
cvardump - Dumps all cvars to the console
cvar_restart - Reset all cvars
cmdlist - Gives a list of all commands in the game
shaderlist - Gives a list of all the shaders on the current map
imagelist - Gives a list of all images on the current map
snd_list - Gives a list of all sounds currently being used
entitylist - Gives a list of all entities currently in use
bindlist - Gives a list of all currently bound keys
gfxinfo - Gives information about the game graphics
cg_brass 0 - Turns ejecting shells off
cg_marks 0 - Turns bullet marks off
cg_drawFPS 1 - Turns fps display on
cg_drawTimer 1 - Turns game timer on
cg_drawStatus 0 - Turns HUD off
cg_draw2D 0 - Turns HUD and crosshair off
cg_drawCrosshair 0 - Turns crosshair off
cg_thirdPerson 1 - Turns on 3rd person view on.
cg_showMiss 1 - Shows you how far off you are from hitting an npc if you've missed.
cg_shadows 0 - Turns shadows off.
cg_noRender 0/1 - Gameplay will continue, but will no longer be rendered.
cg_subtitles 0/1 - Turns off/on subtitles
cg_letterbox 0/1 - Turns off/on letterbox format
cl_debugMove 0/1 - Turns off/on player and AI movement debugging.
con_debug 0/1 - Turns off/on console debugging.
fx_debug 0/1 - Turns off/on fx debugging.
fx_draw 0/1 - Turns off/on fx. If set to 0, no smoke, muzzle flashes or particle effects will be drawn.
fx_enable 0/1 - Turns off/on fx. If set to 0, fx will be disabled.
fx_freeze 0/1 - Turns off/on fx freezing. If set to 1, smoke for example) will freeze in mid air.
g_spawnai 0/1 - Don't spawn on the map (usually crashes the game)
g_ai 0/1 - Turns off/on ai in the game.
g_debugDamage 1 - View the amount of health that an npc has and how much damage you have done to it.
g_vehicleDebug 0/1 - Turns off/on vehicle debug mode.
g_debugMove 1 - Turns off/on player and AI movement debugging.
g_debugBullets 1 - Turns off/on bullet debugging.
g_debugShowHit 1 - Turns off/on hit debugging.
g_drawEntBBoxes 1 - Turns off/on entity bounding boxes.
r_fog 0/1 - Turns off/on fog
r_drawEntities 0/1 - Turns off/on objects and npc's. Default is 1
r_drawWorld 0/1 - Turns off/on all objects and backgrounds. Default is 1
r_showtris 0/1 - Turns off/on wireframe mode. Default is 0