Killing Floor

Killing Floor cheat codes: 
At any time during play, hit the [`] key to bring down the console.
Type the following cheats in and hit enter to get the desired effect.
god                  - Toggle god mode (Once for on, again for off).
heal                 - Full health
fly                  - Fly
setgravity [number]  - Set the gravity
walk                 - Disables No clipping mode
allammo              - Maximum ammunition
ghost                - No clipping mode
slomo [number]       - Set speed; disabled after zedtime
behindview [0 or 1]  - Toggle third person view