Press [~] during game play, then enter one of the following codes to activate the corresponding cheat function. Note: Entering a code without its numeric value will display the current value:
god <0 or 1> - Toggle God mode
noclip <0 or 1> - Toggle no clipping mode
gravity <0 or 1> - Toggle gravity; default is 1
lod - Set level of detail
speed - Set running speed; default is 125
vshaders - Set vertex shaders
bump <0 or 1> - Toggle bump mapping
debug <0 or 1> - Toggle debug menu
disable_ai <0 or 1> - Toggle enemy attacks; default is 0
fps <0 or 1> - Toggle framerate; default is 0
hudenable <0 or 1> - Toggle HUD; default is 1
shadows <0 or 1> - Toggle shadows
smooth_shadows <0 or 1> - Toggle smooth shadows
wire <0 or 1> - Toggle wireframes; default is 0
selfshade - Unknown
person_bump_dist - Unknown
obj_bump_dist - Unknown
obj_bump_dist - Unknown
drawstatic - Unknown
drawsmoke - Unknown
checksmoke - Unknown
calcsmoke - Unknown
objshadows - Unknown
ps 20 - Unknown
addtool <0 or 1> - Unknown; default is 0
movie <0 or 1> - Unknown; default is 0
persons <0 or 1> - Unknown; default is 0
mover <0 or 1> - Unknown; default is 0
ragdoll <0 or 1> - Unknown; default is 0
contacts <0 or 1> - Unknown; default is 0
enabled <0 or 1> - Unknown; default is 0
nakmodel <0 or 1> - Unknown; default is 0
trimesh <0 or 1> - Unknown; default is 0
phizik <0 or 1> - Unknown; default is 1
drawpersons <0 or 1> - Unknown; default is 1
pers_move_check <0 or 1> - Unknown; default is 1
pers_move <0 or 1> - Unknown; default is 1
wave_trace <0 or 1> - Unknown; default is 1
newtrace <0 or 1> - Unknown; default is 1
portals <0 or 1> - Unknown; default is 1