Various cheats
     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.

Cheat 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