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 function. Note: Some codes do not work on all servers.
CHEAT FUNCTION – CHEAT CODE
Change framerate – fps_max
Change brightness – lightgamma
Disable background sound – stopsound
Bind command to key – bind
Bind hook to Q – bind q hook
Display ping values:
Start the game server with the -numericping command line parameter.