Cheat Codes:
Load game with the command line: hl.exe -dev -toconsole. Then, press ~ if the orange text on the screen does not disappear. During gameplay, press ~ to display the text prompt and type in sv_cheats 1. Press ~ and enter one of the following console commands to activate the corresponding cheat:
CHEAT FUNCTION – CHEAT CODE
God mode. – /god
No clipping mode – /noclip
Opponents ignore character – /notarget
All weapons and ammo – impulse 101
Auto-reload enabled – reload
Auto-reload disabled – -reload
Map select – /map