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: You can only use cheats when the maximum players is set to "2".
Toggle God mode godmode <0 or 1> All weapons giveall Toggle no clipping mode cl_noclip <0 or 1> Toggle opponents ignore character cl_notarget <0 or 1>
ça marche sur STEAM et WON mais ne les utilisez pas ces cheats si les serveurs de svencoop sont sécurisés avec VAC (valve anti cheat)