Ritualistic

First press the tilde (~) key, as in other games, then enter the code:

/health 999 - Health 999
/wuss - All weapons
/superfuzz - God mode
/nocollision - No clip mode
/wallflower - No target

To get items type /spawn x where x is any of the following:

magnum - Gives the magnum
shotgun - Gives the shotgun
assaultrifle - Gives the assault rifle
rocketlauncher - Gives the rocket launcher
sniperrifle - Gives the sniper rifle
heligun - Gives the big gun from the helicopter
reactiveshields - Gives the reactive shield
rockets - Gives rockets
coin - Gives a coin
health - Gives a health pack
cookies - Gives a pack of cookies
lensflare - Makes a light-effect
ChainGun - Chaingun (the one you get when you press #5)
BlueCard - Blue identcard
OrangeCard - Orange identcard
YellowCard - Yellow identcard
GreenCard - Green identcard
KeyRing - Small key
MoneyBag - Bag from bank robbery
Dollar - Gives a coin
Evidence - Papers with evidence
PulsePart1 - First part of the pulse cannon
PulsePart2 - Second part of the pulse cannon
PulsePart3 - Third part of the pulse cannon
Chemsuit - Chemical protection suit
Blueprints - Blueprints from the construction site
U4 sample - Sample from chemplant
Silencer - Silencer for standard gun