Note: This procedure involves editing a game file; create a backup copy of the
file before proceeding. Use a text editor to edit the "config.ini" file in the
game directory. Add the following line to the end of the file:
Then, press ~ during game play to display the console window.
Enter sv_cheats 1 to enable cheat mode, then enter one of the
following codes at the console window to activate the cheat function.
God mode - game_godmode 1
Suicide - suicide
Flight mode - g_fly 1
No clipping mode - g_noclip 1
Level select - map