Painkiller

Painkiller cheat codes: 
Start game as usual, in game - bring up the console with [~] and
input the following codes:
PKGOD              - toggle 'godmode' on/off
PKDEMON            - toggle 'demon morph' on/off
PKWEAKENEMIES      - toggle 'enemies get 1 hp' on/off
PKALWAYSGIB        - toggle 'excessive gibbage' on/off
WEAPONSPECULAR 1/0 - toggles 'weapon specular' on/off
PKWEAPONS          - gives all weapons
PKAMMO             - full ammo
PKHEALTH           - full health
PKPOWER            - full ammo/health
PKGOLD             - lots of gold
PKHASTE            - toggle haste on/off
PKWEAPONMODIFIER   - toggle 'weapon modifier mode' on/off
PKKEEPDECALS       - toggle 'decals will never disappear' on/off
PKKEEPBODIES       - toggle 'bodies will never disappear' on/off


Cheat codes work only in Daydream and Insomnia mode.
here are console cheat codes list:
JOIN
SPEEDMETER
CROSSHAIR
FRAGLIMIT
CAMERAINTERPOLATION
PLAYERPREDICTION
MSMOOTH
ROT
TIMELIMIT
NETSTATS
NOTREADY
POS
MAP
READY
HUDSIZE
BREAK
DEMO
STRESSTEST
SHOWWEAPON
UPDATEPARAMS_PHYSICSITEMS
UPDATEPARAMS_PLAYERS
UPDATEPARAMS_MYPLAYER
UPDATEPARAMS_PROJECTILES
SERVER
FOV
ACTIONSENDPERIOD
MSENSITIVITY
NAME
TEAM
MAXPACKETSIZE
EXIT QUIT