Cheat Codes
Start the game with the "-console 1" command line parameter. Press [~] (tilde) while playing and type any of the following codes.
Note: Commands will auto-complete while you type them. Type any letter and you can scroll up and down with the cursor keys to see the various available console commands.

Code: Result:
god God Mode
giftxp # Give XP (#=amount)
impulse 101 Get Most Items and Weapons
give item_w_ Spawn Weapon (scroll up/down to choose)
give item_p_ Spawn Artifact/Book (scroll up/down to choose)
give item_g_ Spawn Item (scroll up/down to choose)
give item_a_ Spawn Clothing (scroll up/down to choose)
give item_m_ Spawn Money Item (scroll up/down to choose)
notarget Enemies Don't See You
freecasting No Blood Loss When Using Disciplines
noclip No Clipping Mode
quit Exit to Desktop