Serious Sam

Cheat Codes 
While playing a game, press [F1] to display the console window. Type one of the following codes, press [Enter], then press [F1] again to activate the corresponding cheat function:

RESULT 	CHEAT CODE 	
God mode	cht_bGod	
All weapons	cht_bGiveAll	
Full health	cht_bRefresh	
No clipping	cht_bGhost	
Invisibility	cht_bInvisible	
Flight mode	cht_bFly	

Cheat Codes (alternate) 

While playing a game, press ~ to display the console window, then enter one of the following codes to activate the corresponding cheat function:

RESULT 	CHEAT CODE 	
God mode	please god	
All weapons	please giveall	
Full health	please refresh	
No clipping	please ghost	
Invisibility	please invisible	
Flight mode	please fly	
Unknown	please killall	
Unknown	please open	
Unknown	please tellall