Cheat Codes . Open Steam, go to your “Play Games” menu, and select Half-Life 2. Right click on it and select “Properties”. Click the Launch Options button, then type ” -console “. Click “Ok”, then close. Double click Half-Life 2 to start the game. Once it is loaded and you are playing, press the ~ key to bring up the console.
Go to your settings, keyboard, advanced (at the bottom), and check the "enable developer console" button. Next press the `/~ button. Its next to the 1 key. Type "sv_cheats 1" and then "bind v noclip" then "god". This will let you toggle on/off going through walls and have unlimited health.
1 Answer. Sorted by: 9. This is possible on the PC version by making use of the console which you can open by pressing ~. You can then jump to any level with the map x console command, where x is the code for the level you wish to jump to. The list of levels (most levels are split to several sections) and console commands to access can be found QAkCDP.