| Cheat | Result |
| God Mode | God |
| Take Damage, but don't die | buddha |
| All weapons, including those from Half Life 2 | impulse 101 |
| Enemies do not target you | notarget |
| No clipping mode | noclip |
Enter the options menu, select "Controls", then
"Advanced". Turn on the option for the console. Then
while playing the game, press ~ to display the
console window. Type "sv_cheats 1" to enable
cheat mode. Then, type one of the following codes and
press [Enter] at the console window to activate the
corresponding cheat function:
